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All questions of Plants for Primary 6 Exam
Pollen grains are produced in side- a)Ovary
- b)Stigma
- c)Anther
- d)Pistil
Correct answer is option 'C'. Can you explain this answer?
Pollen grains are produced in side
a)
Ovary
b)
Stigma
c)
Anther
d)
Pistil
|
Alok Verma answered |
The male sex cells of seed plants (flowering plants, conifers, and cycads) are contained in tough capsules called POLLEN. Pollen grains are produced by organs called anthers and must be transferred to the female parts of plants in order to form seeds. This process, called pollination, can be achieved in various ways. Some plants are assisted by animals that act as POLLINATORS. Others use the wind to take their pollen where it is needed.
Q. The most beautiful part of plant isa)Branchesb)Leavesc)Flowersd)StemsCorrect answer is option 'C'. Can you explain this answer?
|
Vikas Choudhury answered |
Flower is the most beautiful part of a plant. It changes into fruit.
Most of the plants bear flowers. Flowers are of different shapes, sizes and colors. Some flowers smell good. Some of the good smelling flowers are rose, jasmine, lotus, sunflower, apple flower.
Primary function of leaf is to- a)Develop leaflets
- b)Prepare food
- c)Store food
- d)Transport food
Correct answer is option 'B'. Can you explain this answer?
Primary function of leaf is to
a)
Develop leaflets
b)
Prepare food
c)
Store food
d)
Transport food
|
Devika Nair answered |
Primary function of leaf is to prepare food by the process of photosynthesis in presence of sunlight.
Can you explain the answer of this question below:Which plant is the example of a herb?
- A:
Mango
- B:
China rose
- C:
Wheat
- D:
None
The answer is C.
Which plant is the example of a herb?
Mango
China rose
Wheat
None
|
|
Nishanth Iyer answered |
Herb as a Plant
A herb is a plant that is used for medicinal, culinary or aromatic purposes. These plants are usually small in size and lack woody stems. They can be annual, biennial or perennial. Herbs are usually grown for their leaves, flowers or roots.
Example of a Herb
The correct answer to this question is option 'C' - Wheat. Wheat is an example of a herb. It is an annual grass that belongs to the Poaceae family. Wheat is a cereal crop that is grown for its seeds. It is one of the most important staple crops in the world and is used to make a variety of food products such as bread, pasta, cakes, and biscuits.
Characteristics of Wheat
- Wheat is an annual plant that completes its life cycle in one growing season.
- It has a hollow stem and narrow leaves.
- The flowers of wheat are arranged in spikelets and are usually self-pollinated.
- The seeds of wheat are small and hard and are enclosed in a husk.
Importance of Wheat
- Wheat is an important source of carbohydrates, protein, and dietary fiber.
- It is a staple food in many parts of the world and is used to make a variety of food products.
- In addition to food, wheat is also used for animal feed and as a raw material for biofuels.
Conclusion
In conclusion, wheat is an example of a herb that is grown for its seeds. It is an important staple crop that is used to make a variety of food products. Herbs are an important part of the plant kingdom and are used for various purposes.
A herb is a plant that is used for medicinal, culinary or aromatic purposes. These plants are usually small in size and lack woody stems. They can be annual, biennial or perennial. Herbs are usually grown for their leaves, flowers or roots.
Example of a Herb
The correct answer to this question is option 'C' - Wheat. Wheat is an example of a herb. It is an annual grass that belongs to the Poaceae family. Wheat is a cereal crop that is grown for its seeds. It is one of the most important staple crops in the world and is used to make a variety of food products such as bread, pasta, cakes, and biscuits.
Characteristics of Wheat
- Wheat is an annual plant that completes its life cycle in one growing season.
- It has a hollow stem and narrow leaves.
- The flowers of wheat are arranged in spikelets and are usually self-pollinated.
- The seeds of wheat are small and hard and are enclosed in a husk.
Importance of Wheat
- Wheat is an important source of carbohydrates, protein, and dietary fiber.
- It is a staple food in many parts of the world and is used to make a variety of food products.
- In addition to food, wheat is also used for animal feed and as a raw material for biofuels.
Conclusion
In conclusion, wheat is an example of a herb that is grown for its seeds. It is an important staple crop that is used to make a variety of food products. Herbs are an important part of the plant kingdom and are used for various purposes.
The region of attachment of the leaf with the stem is called the ----------------- a)Petiole
- b)Lamina
- c)Leaf margin
- d)Leaf Base
Correct answer is option 'A'. Can you explain this answer?
The region of attachment of the leaf with the stem is called the ----------------
a)
Petiole
b)
Lamina
c)
Leaf margin
d)
Leaf Base
|
|
Ananya Das answered |
The part of a leaf by which it is attached to the stem is called petiole.
The plant which takes the support of the neighbouring structures and climbs up is ----?- a)Tree
- b)Shrub
- c)Creeper
- d)Climber
Correct answer is option 'D'. Can you explain this answer?
The plant which takes the support of the neighbouring structures and climbs up is ----?
a)
Tree
b)
Shrub
c)
Creeper
d)
Climber
|
Swara Mukherjee answered |
Creepers and Climbers
There are some plants with weak stems that cannot stand upright and spread on the ground. These are called creepers, while those that take support on neighbouring structures and climb up are called climbers. These are different from the herbs, shrubs and trees.
The plants which have branches at the base are______
- a)Herbs
- b)Shrubs
- c)Creepers
- d)Trees
Correct answer is option 'B'. Can you explain this answer?
The plants which have branches at the base are______
a)
Herbs
b)
Shrubs
c)
Creepers
d)
Trees
|
Rajesh Khatri answered |
Explanation:
-
Herbs: These are small, non-woody plants with a soft stem. They typically have a single stem and do not usually have branches at the base. Examples include basil, mint, and coriander.
-
Shrubs: These are medium-sized plants with multiple woody stems that usually start branching out from the base or near the ground. Shrubs are bushy and shorter than trees. Examples include rose, hibiscus, and bougainvillea.
-
Creepers: These are plants with very weak stems that grow along the ground or other surfaces. They don't usually have branches at the base, but they spread out horizontally. Examples include pumpkin, watermelon, and ivy.
-
Trees: These are tall, woody plants with a single main trunk and branches that usually grow higher up from the ground. They typically do not have branches at the base. Examples include oak, pine, and mango.
Shrubs are the correct answer because they are characterized by having branches that grow from the base, giving them a bushy appearance.
The spines of cactus are
- a)Stipules
- b)Modified stem
- c)Tendrils
- d)Modified leaves
Correct answer is option 'D'. Can you explain this answer?
The spines of cactus are
a)
Stipules
b)
Modified stem
c)
Tendrils
d)
Modified leaves
|
|
Rajesh Khatri answered |
The spines of cactus are modified leaves to reduce rate of transpiration in plants.
The root, stem, leaves constitute the_______part of the plant body
- a)Vegetative
- b)Reproductive
- c)Both a & b
- d)None
Correct answer is option 'A'. Can you explain this answer?
The root, stem, leaves constitute the_______part of the plant body
a)
Vegetative
b)
Reproductive
c)
Both a & b
d)
None
|
Priya Menon answered |
The plant parts like root, stem, and leaves are called vegetative parts because they have the power of growing asexually without getting involved in the process of reproduction. These do not contain any germ cells (sexually reproducing cells) but still are capable of giving rise to young plants by vegetative propagation. New shoot and root germinate from nodes and adventitious buds. Plants raised by vegetative propagation can bear flowers and fruits earlier than those produced from seeds.
The food prepared by leaves is stored as -------------------- a)Starch
- b)Sugars
- c)Proteins
- d)Fats
Correct answer is option 'A'. Can you explain this answer?
The food prepared by leaves is stored as -------------------
a)
Starch
b)
Sugars
c)
Proteins
d)
Fats
|
Arjun Desai answered |
The food prepared by the leaves, using air and water, in the presence of sunlight is in the form of starch.
Water, carbon dioxide, chlorophyll and sunlight are needed by the leaves to prepare the food.
The part of plants above the ground is called- a)Shoot system
- b)Branch system
- c)Root system
- d)Foliage system
Correct answer is option 'A'. Can you explain this answer?
The part of plants above the ground is called
a)
Shoot system
b)
Branch system
c)
Root system
d)
Foliage system
|
|
Alok Verma answered |
The shoot is the above ground portion of the plant. In the shoot system, one will find the stem, leaves, flowers, and fruit. The stem is the sturdy stalk that grows from the roots and sprouts leaves and flowers. The stem provides structure to the plant and carries all of the needed nutrients to the plant through stem structures called the xylem and phloem.
Which of the following plants exhibits a fibrous root system?- a) Carrot
- b) Radish
- c) Grass
- d) Beetroot
Correct answer is option 'C'. Can you explain this answer?
Which of the following plants exhibits a fibrous root system?
a)
Carrot
b)
Radish
c)
Grass
d)
Beetroot
|
|
Prasad Kulkarni answered |
Understanding Root Systems
Plants develop different types of root systems that help them adapt to their environment. The two primary types are fibrous and taproot systems.
What is a Fibrous Root System?
- A fibrous root system consists of numerous thin roots that spread out in all directions.
- These roots emerge from the base of the stem and are typically shallow.
- This type of root system is effective for preventing soil erosion and absorbing moisture from the surface.
Examples of Plants with Fibrous Roots
- Grasses, such as wheat, rice, and many lawn grasses, exhibit a fibrous root system.
- They are well-suited for environments where soil stability and surface moisture are crucial.
Comparison with Taproot Systems
- In contrast, plants like carrots, radishes, and beetroot have a taproot system.
- A taproot system features a single, thick root that grows deep into the soil, with smaller lateral roots.
- This system is effective for accessing deeper water sources but does not spread as widely as a fibrous system.
Conclusion
Given the options:
- Carrot: Taproot system
- Radish: Taproot system
- Grass: Fibrous root system
- Beetroot: Taproot system
Thus, the correct answer is option 'C': Grass, as it is the only one listed that exhibits a fibrous root system. Understanding these differences helps in recognizing how plants thrive in various conditions.
Plants develop different types of root systems that help them adapt to their environment. The two primary types are fibrous and taproot systems.
What is a Fibrous Root System?
- A fibrous root system consists of numerous thin roots that spread out in all directions.
- These roots emerge from the base of the stem and are typically shallow.
- This type of root system is effective for preventing soil erosion and absorbing moisture from the surface.
Examples of Plants with Fibrous Roots
- Grasses, such as wheat, rice, and many lawn grasses, exhibit a fibrous root system.
- They are well-suited for environments where soil stability and surface moisture are crucial.
Comparison with Taproot Systems
- In contrast, plants like carrots, radishes, and beetroot have a taproot system.
- A taproot system features a single, thick root that grows deep into the soil, with smaller lateral roots.
- This system is effective for accessing deeper water sources but does not spread as widely as a fibrous system.
Conclusion
Given the options:
- Carrot: Taproot system
- Radish: Taproot system
- Grass: Fibrous root system
- Beetroot: Taproot system
Thus, the correct answer is option 'C': Grass, as it is the only one listed that exhibits a fibrous root system. Understanding these differences helps in recognizing how plants thrive in various conditions.
Branches grow from - - - - - - - - -- a)Roots
- b)Apical Buds
- c)Axillary Buds
- d)Stem
Correct answer is option 'C'. Can you explain this answer?
Branches grow from - - - - - - - - -
a)
Roots
b)
Apical Buds
c)
Axillary Buds
d)
Stem
|
|
Priya Menon answered |
The axillary bud (or lateral bud) is an embryonic shoot located in the axil of a leaf. Each bud has the potential to form shoots, and may be specialized in producing either vegetative shoots (stems and branches) or reproductive shoots (flowers).
Which part of the plant is responsible for photosynthesis?- a)Root
- b)Stem
- c)Leaf
- d)Flower
Correct answer is option 'C'. Can you explain this answer?
Which part of the plant is responsible for photosynthesis?
a)
Root
b)
Stem
c)
Leaf
d)
Flower
|
EduRev Class 6 answered |
Leaves contain chlorophyll and are the main site for photosynthesis, the process by which plants make their food.
Tiny pores on the surface of leaves are called- a)Lenticels
- b)Guard cell
- c)Bores
- d)Stomata
Correct answer is option 'D'. Can you explain this answer?
Tiny pores on the surface of leaves are called
a)
Lenticels
b)
Guard cell
c)
Bores
d)
Stomata
|
|
Priya Menon answered |
Tiny pores on the surface of leaves are called stomata. Stomata is responsible for exchange of gases and transpiration.
________bud helps in Vertical growth of the plant.
- a)Apical
- b)Axillary
- c)Both a & b
- d)None
Correct answer is option 'A'. Can you explain this answer?
________bud helps in Vertical growth of the plant.
a)
Apical
b)
Axillary
c)
Both a & b
d)
None
|
Shilpa Kulkarni answered |
Apical dominance in plants is the main stem of the plant, spurting with growth from its bud, due to the growth hormone called auxin.
The part of plant which grows above the ground is ----?- a)Shoot system
- b)Root system
- c)both a & b
- d)None
Correct answer is option 'A'. Can you explain this answer?
The part of plant which grows above the ground is ----?
a)
Shoot system
b)
Root system
c)
both a & b
d)
None
|
|
Swara Mukherjee answered |
The shoot is the above ground portion of the plant. In the shoot system, one will find the stem, leaves, flowers, and fruit. The stem is the sturdy stalk that grows from the roots and sprouts leaves and flowers.
Small plants, soft peroshable stems, attain height upto five feet, generally annuals and biennials. These plants are ________.- a)Herbs
- b)Shrubs
- c)Trees
- d)none of these
Correct answer is option 'A'. Can you explain this answer?
Small plants, soft peroshable stems, attain height upto five feet, generally annuals and biennials. These plants are ________.
a)
Herbs
b)
Shrubs
c)
Trees
d)
none of these
|
|
Khushi shukla answered |
Plants with green and tender stems are called herbs. They are usually short and may not have many branches.
In flowering plants, which part is often brightly colored to attract pollinators?- a) Sepal
- b) Petal
- c) Stamen
- d) Pistil
Correct answer is option 'B'. Can you explain this answer?
In flowering plants, which part is often brightly colored to attract pollinators?
a)
Sepal
b)
Petal
c)
Stamen
d)
Pistil
|
Nilotpal Nambiar answered |
Understanding Flower Structure
In flowering plants, the structure of the flower is crucial for reproduction. Each part plays a specific role, but the petals are particularly significant when it comes to attracting pollinators.
Role of Petals
- Color and Attraction: Petals are often brightly colored, which serves to attract pollinators such as bees, butterflies, and birds. The vibrant colors can signal the presence of nectar and pollen, which are food sources for these creatures.
- Shape and Design: The shape of petals can also be designed to cater to specific pollinators. For example, tubular petals may attract hummingbirds, while flat flowers may be more appealing to bees.
Function of Other Flower Parts
- Sepals: These are usually green and serve to protect the developing flower bud before it blooms. They are not typically responsible for attracting pollinators.
- Stamen: This is the male reproductive part of the flower, consisting of the anther and filament. While it produces pollen, it does not attract pollinators directly.
- Pistil: The female reproductive part, which includes the ovary, style, and stigma. While essential for reproduction, it does not have a role in attracting pollinators.
Conclusion
The petals are the most visually appealing part of the flower, designed specifically to draw in pollinators. Their bright colors and shapes play a critical role in the plant's reproductive success by ensuring that pollinators visit, facilitating the transfer of pollen from one flower to another. Thus, option 'B' (Petals) is the correct answer.
In flowering plants, the structure of the flower is crucial for reproduction. Each part plays a specific role, but the petals are particularly significant when it comes to attracting pollinators.
Role of Petals
- Color and Attraction: Petals are often brightly colored, which serves to attract pollinators such as bees, butterflies, and birds. The vibrant colors can signal the presence of nectar and pollen, which are food sources for these creatures.
- Shape and Design: The shape of petals can also be designed to cater to specific pollinators. For example, tubular petals may attract hummingbirds, while flat flowers may be more appealing to bees.
Function of Other Flower Parts
- Sepals: These are usually green and serve to protect the developing flower bud before it blooms. They are not typically responsible for attracting pollinators.
- Stamen: This is the male reproductive part of the flower, consisting of the anther and filament. While it produces pollen, it does not attract pollinators directly.
- Pistil: The female reproductive part, which includes the ovary, style, and stigma. While essential for reproduction, it does not have a role in attracting pollinators.
Conclusion
The petals are the most visually appealing part of the flower, designed specifically to draw in pollinators. Their bright colors and shapes play a critical role in the plant's reproductive success by ensuring that pollinators visit, facilitating the transfer of pollen from one flower to another. Thus, option 'B' (Petals) is the correct answer.
Flowers, Fruits & Seeds constitute the________part of the plant body
- a)Vegetative
- b)None
- c)Reproductive
- d)Both a & b
Correct answer is option 'C'. Can you explain this answer?
Flowers, Fruits & Seeds constitute the________part of the plant body
a)
Vegetative
b)
None
c)
Reproductive
d)
Both a & b
|
|
Swara Mukherjee answered |
- Flowers: They hold the plant's baby-making parts and aid in pollination, where pollen reaches the eggs for fertilization.
- Fruits: They come from a flower's ripe ovary, housing seeds. Fruits help seeds spread for new plant growth.
- Seeds: These are baby plants' beginnings with all the genetic details for future growth. They often travel with the help of wind, animals, or water.
- In contrast, roots, stems, and leaves are about plant support, growth, and food-making through photosynthesis.
Ovary is a part of _______.
- a)Stamen
- b)Stigma
- c)Pistil
- d)None of these
Correct answer is option 'C'. Can you explain this answer?
Ovary is a part of _______.
a)
Stamen
b)
Stigma
c)
Pistil
d)
None of these
|
Rutuja Bose answered |
- The ovary is a part of the pistil in a flower.
- The pistil is the female reproductive part of a flower and consists of three main parts: the stigma, style, and ovary.
- The ovary is located at the base of the pistil.
- It contains ovules, which develop into seeds after fertilization.
- The stamen is the male reproductive part and includes the anther and filament.
- Therefore, the correct answer is C: Pistil.
- The pistil is the female reproductive part of a flower and consists of three main parts: the stigma, style, and ovary.
- The ovary is located at the base of the pistil.
- It contains ovules, which develop into seeds after fertilization.
- The stamen is the male reproductive part and includes the anther and filament.
- Therefore, the correct answer is C: Pistil.
Leaves are green due to presence of green pigment called- a)Leucoplasts
- b)Chlorophyll
- c)Xanthophylls
- d)Hydrophytes
Correct answer is option 'B'. Can you explain this answer?
Leaves are green due to presence of green pigment called
a)
Leucoplasts
b)
Chlorophyll
c)
Xanthophylls
d)
Hydrophytes
|
Kunal Mehta answered |
The green colored pigment in leaves is known as chlorophyll. There are other color pigments present as well such as yellow, red, blue, orange, etc. depending on the the needs, species environment of the plant. Plants require chlorophyll to convert sunlight into chemical energy which is known as photosynthesis.
When a flower has all the sets of whorls it is described as ------ flower.- a)Complete
- b)Incomplete
- c)Zygomorphic
- d)Actinomorphic
Correct answer is option 'A'. Can you explain this answer?
When a flower has all the sets of whorls it is described as ------ flower.
a)
Complete
b)
Incomplete
c)
Zygomorphic
d)
Actinomorphic
|
Janani Mukherjee answered |
If all four whorls (the calyx, corolla, androecium, and gynoecium) are present, the flower is described as complete. If any of the four parts is missing, the flower is known as incomplete. Flowers that contain both an androecium and a gynoecium are called perfect, androgynous or hermaphrodites.
Which plant system is characterized by a single, thick root?- a)Grass
- b)Carrot
- c)Wheat
- d)Maize
Correct answer is option 'B'. Can you explain this answer?
Which plant system is characterized by a single, thick root?
a)
Grass
b)
Carrot
c)
Wheat
d)
Maize
|
Get Idea answered |
The plant system characterized by a single, thick root is known as a taproot system, and carrots are an example of a plant with a taproot. In this system, the main root grows thick and stores food, while smaller lateral roots branch off.
The presence of a thick and hard stem is a feature of ____.
- a)Herb
- b)Shrub
- c)Climber
- d)Tree
Correct answer is option 'D'. Can you explain this answer?
The presence of a thick and hard stem is a feature of ____.
a)
Herb
b)
Shrub
c)
Climber
d)
Tree
|
Master Training Institute answered |
Trees are characterized by having a thick and hard stem, known as a trunk, which supports the plant as it grows taller. This is a key feature that distinguishes trees from other types of plants like herbs, shrubs, and climbers.
Identify the part of the plant that is primarily responsible for reproduction.- a) Leaf
- b) Stem
- c) Root
- d) Flower
Correct answer is option 'D'. Can you explain this answer?
Identify the part of the plant that is primarily responsible for reproduction.
a)
Leaf
b)
Stem
c)
Root
d)
Flower
|
Vp Classes answered |
The flower is the reproductive structure in flowering plants. It plays a crucial role in the process of pollination and fertilization, leading to the formation of seeds, which are essential for producing new plants.
Which part of spinach is used as vegetable?- a)Stems
- b)Roots
- c)Leaves
- d)Modified roots
Correct answer is option 'C'. Can you explain this answer?
Which part of spinach is used as vegetable?
a)
Stems
b)
Roots
c)
Leaves
d)
Modified roots
|
Aaditya Goyal answered |
The leaves of spinach is used as vegetable which contain Iron, and protein in large quantity.
What function do veins serve in leaves?- a) Absorb sunlight
- b) Transport water and nutrients
- c) Perform photosynthesis
- d) Store food
Correct answer is option 'B'. Can you explain this answer?
What function do veins serve in leaves?
a)
Absorb sunlight
b)
Transport water and nutrients
c)
Perform photosynthesis
d)
Store food
|
Rohini Seth answered |
Veins in leaves are essential for transporting water and nutrients to the leaf tissues and carrying the synthesized food back to other parts of the plant. This vascular network is crucial for maintaining the plant's health and facilitating its metabolic processes.
The part of the plant which prevents soil erosion is?- a)Stem
- b)Flower
- c)Root
- d)Leaves
Correct answer is option 'C'. Can you explain this answer?
The part of the plant which prevents soil erosion is?
a)
Stem
b)
Flower
c)
Root
d)
Leaves
|
Abhishek Chakraborty answered |
Plants protect soil and prevent erosion in a couple of ways. The root system binds the soil together and holds it in place even when water is moving over or through it. The part of the plant that we see, the green part protects from wind erosion and from water running over the surface and carrying soil away
Which of the following is NOT a function of the roots of a plant?- a)Absorbing water and minerals from the soil
- b)Holding the plant firmly in the soil
- c)Preparing food for the plant
- d)Storing food for future use
Correct answer is option 'C'. Can you explain this answer?
Which of the following is NOT a function of the roots of a plant?
a)
Absorbing water and minerals from the soil
b)
Holding the plant firmly in the soil
c)
Preparing food for the plant
d)
Storing food for future use
|
|
Shivam Chakraborty answered |
Understanding Plant Roots
Roots play a crucial role in the growth and survival of plants. They perform several essential functions, but not all of them are related to food preparation.
Functions of Plant Roots
- Absorbing Water and Minerals:
Roots are responsible for taking up water and essential nutrients from the soil, which are vital for the plant's growth and overall health.
- Holding the Plant Firmly:
Roots anchor the plant securely in the soil, preventing it from being uprooted by wind or water, thus providing stability.
- Storing Food for Future Use:
Some plants utilize their roots to store nutrients and energy in the form of starches, which can be used later when the plant requires additional energy.
Why Option C is Correct
- Preparing Food for the Plant:
This is NOT a function of the roots. Instead, the leaves of the plant are responsible for photosynthesis, the process through which plants convert sunlight, carbon dioxide, and water into glucose (food).
- The roots do not have the capability to synthesize food; this essential function is carried out by the leaves where chlorophyll captures sunlight.
Conclusion
In summary, while roots are vital for water and nutrient absorption, anchorage, and storage, they do not prepare food for the plant. This role is specifically assigned to the leaves, making option 'C' the correct answer.
Roots play a crucial role in the growth and survival of plants. They perform several essential functions, but not all of them are related to food preparation.
Functions of Plant Roots
- Absorbing Water and Minerals:
Roots are responsible for taking up water and essential nutrients from the soil, which are vital for the plant's growth and overall health.
- Holding the Plant Firmly:
Roots anchor the plant securely in the soil, preventing it from being uprooted by wind or water, thus providing stability.
- Storing Food for Future Use:
Some plants utilize their roots to store nutrients and energy in the form of starches, which can be used later when the plant requires additional energy.
Why Option C is Correct
- Preparing Food for the Plant:
This is NOT a function of the roots. Instead, the leaves of the plant are responsible for photosynthesis, the process through which plants convert sunlight, carbon dioxide, and water into glucose (food).
- The roots do not have the capability to synthesize food; this essential function is carried out by the leaves where chlorophyll captures sunlight.
Conclusion
In summary, while roots are vital for water and nutrient absorption, anchorage, and storage, they do not prepare food for the plant. This role is specifically assigned to the leaves, making option 'C' the correct answer.
Which part of the plant contains the seeds after fertilization?- a) Leaf
- b) Stem
- c) Flower
- d) Root
Correct answer is option 'C'. Can you explain this answer?
Which part of the plant contains the seeds after fertilization?
a)
Leaf
b)
Stem
c)
Flower
d)
Root
|
Aaditya Chawla answered |
Introduction
In flowering plants, the process of fertilization leads to the formation of seeds, which are crucial for reproduction. The part of the plant that plays a vital role in this process is the flower.
Role of the Flower
- The flower is the reproductive structure of angiosperms (flowering plants).
- It contains essential parts such as the pistil (female reproductive organ) and the stamen (male reproductive organ).
Fertilization Process
- During fertilization, pollen grains from the stamen travel to the pistil, where they fertilize the ovules.
- Each fertilized ovule develops into a seed, which contains the genetic material from both parent plants.
Seed Development
- After fertilization, the ovary of the flower develops into a fruit, which encases the seeds.
- Seeds contain the embryo of the plant, along with nutrients, and are protected until germination.
Conclusion
- Therefore, the correct answer is option 'C' - Flower, as it is the part that contains the seeds after fertilization.
- Understanding this process is essential for appreciating plant biology and the importance of flowers in the life cycle of plants.
In flowering plants, the process of fertilization leads to the formation of seeds, which are crucial for reproduction. The part of the plant that plays a vital role in this process is the flower.
Role of the Flower
- The flower is the reproductive structure of angiosperms (flowering plants).
- It contains essential parts such as the pistil (female reproductive organ) and the stamen (male reproductive organ).
Fertilization Process
- During fertilization, pollen grains from the stamen travel to the pistil, where they fertilize the ovules.
- Each fertilized ovule develops into a seed, which contains the genetic material from both parent plants.
Seed Development
- After fertilization, the ovary of the flower develops into a fruit, which encases the seeds.
- Seeds contain the embryo of the plant, along with nutrients, and are protected until germination.
Conclusion
- Therefore, the correct answer is option 'C' - Flower, as it is the part that contains the seeds after fertilization.
- Understanding this process is essential for appreciating plant biology and the importance of flowers in the life cycle of plants.
What is the role of sepals in a flower?- a) Protect the bud
- b) Attract pollinators
- c) Produce pollen
- d) Support the ovary
Correct answer is option 'A'. Can you explain this answer?
What is the role of sepals in a flower?
a)
Protect the bud
b)
Attract pollinators
c)
Produce pollen
d)
Support the ovary
|
Sagar Gupta answered |
Role of Sepals in a Flower
Sepals are an important part of a flower's structure, serving primarily to protect the flower before it blooms.
Protection of the Bud
- Sepals are the green leaf-like structures that encase and protect the developing flower bud.
- They shield the delicate petals and reproductive parts from environmental factors such as harsh weather, insects, and diseases.
- By covering the bud, sepals help ensure that the flower can develop safely until it is ready to open.
Structure and Function
- Typically, sepals are green, although they can be colored in some species, contributing to the flower's overall aesthetic.
- They are attached at the base of the flower and form the outermost whorl, providing structural support.
- The sepals can also help in photosynthesis, especially in plants where they are green and leafy.
Importance in the Flowering Process
- Once the flower blooms, sepals often remain attached, providing continued support to the flower structure.
- They can assist in attracting pollinators indirectly by enhancing the visual appeal of the flower, although their primary role is protective.
In conclusion, while sepals may play a minor role in the overall aesthetic of a flower, their primary and crucial function is to protect the bud until it is ready to open, making option 'A' the correct answer.
Sepals are an important part of a flower's structure, serving primarily to protect the flower before it blooms.
Protection of the Bud
- Sepals are the green leaf-like structures that encase and protect the developing flower bud.
- They shield the delicate petals and reproductive parts from environmental factors such as harsh weather, insects, and diseases.
- By covering the bud, sepals help ensure that the flower can develop safely until it is ready to open.
Structure and Function
- Typically, sepals are green, although they can be colored in some species, contributing to the flower's overall aesthetic.
- They are attached at the base of the flower and form the outermost whorl, providing structural support.
- The sepals can also help in photosynthesis, especially in plants where they are green and leafy.
Importance in the Flowering Process
- Once the flower blooms, sepals often remain attached, providing continued support to the flower structure.
- They can assist in attracting pollinators indirectly by enhancing the visual appeal of the flower, although their primary role is protective.
In conclusion, while sepals may play a minor role in the overall aesthetic of a flower, their primary and crucial function is to protect the bud until it is ready to open, making option 'A' the correct answer.
Which part of the plant is primarily responsible for anchoring it to the ground?- a)Leaf
- b)Stem
- c)Root
- d)Flower
Correct answer is option 'C'. Can you explain this answer?
Which part of the plant is primarily responsible for anchoring it to the ground?
a)
Leaf
b)
Stem
c)
Root
d)
Flower
|
|
Harshad Datta answered |
Understanding Plant Structure
Plants consist of various parts, each serving unique and vital functions. The role of anchoring a plant to the ground is primarily fulfilled by the roots.
Importance of Roots
- Anchoring Mechanism: Roots grow downward into the soil, which helps secure the plant and prevents it from being easily uprooted by wind or water.
- Stability: A well-developed root system provides stability and support, allowing the plant to stand upright and access sunlight effectively for photosynthesis.
Types of Roots
- Taproots: Some plants have a single, thick taproot that extends deep into the soil, providing strong anchorage.
- Fibrous Roots: Other plants have a network of thin, branching roots that spread out close to the surface, which helps in stabilizing the plant in a wide area.
Additional Functions of Roots
- Nutrient Absorption: Roots not only anchor the plant but also absorb water and essential nutrients from the soil, which are crucial for growth.
- Storage: Many roots store energy in the form of starch, which can be used by the plant during times of need.
Conclusion
In summary, roots are the primary part of a plant responsible for anchoring it to the ground. Without a strong root system, a plant would struggle to survive, as it would lack the necessary support and resources to thrive. Understanding the role of roots highlights the complexity and interdependence of plant structures.
Plants consist of various parts, each serving unique and vital functions. The role of anchoring a plant to the ground is primarily fulfilled by the roots.
Importance of Roots
- Anchoring Mechanism: Roots grow downward into the soil, which helps secure the plant and prevents it from being easily uprooted by wind or water.
- Stability: A well-developed root system provides stability and support, allowing the plant to stand upright and access sunlight effectively for photosynthesis.
Types of Roots
- Taproots: Some plants have a single, thick taproot that extends deep into the soil, providing strong anchorage.
- Fibrous Roots: Other plants have a network of thin, branching roots that spread out close to the surface, which helps in stabilizing the plant in a wide area.
Additional Functions of Roots
- Nutrient Absorption: Roots not only anchor the plant but also absorb water and essential nutrients from the soil, which are crucial for growth.
- Storage: Many roots store energy in the form of starch, which can be used by the plant during times of need.
Conclusion
In summary, roots are the primary part of a plant responsible for anchoring it to the ground. Without a strong root system, a plant would struggle to survive, as it would lack the necessary support and resources to thrive. Understanding the role of roots highlights the complexity and interdependence of plant structures.
What is the function of xylem in plants?- a) Transport food
- b) Transport water and minerals
- c) Photosynthesis
- d) Reproduction
Correct answer is option 'B'. Can you explain this answer?
What is the function of xylem in plants?
a)
Transport food
b)
Transport water and minerals
c)
Photosynthesis
d)
Reproduction
|
|
Get Idea answered |
The xylem is responsible for transporting water and dissolved minerals from the roots to the leaves and other parts of the plant. This function is essential for maintaining the plant's hydration and nutrient supply, enabling growth and development.
What is the primary role of phloem in plants?- a) Transport food
- b) Transport water
- c) Provide support
- d) Absorb nutrients
Correct answer is option 'A'. Can you explain this answer?
What is the primary role of phloem in plants?
a)
Transport food
b)
Transport water
c)
Provide support
d)
Absorb nutrients
|
Lekshmi Sen answered |
Primary Role of Phloem in Plants
Phloem is a vital tissue in vascular plants, primarily responsible for the transport of food. Let's explore its role in detail.
Food Transport
- Phloem is responsible for transporting organic nutrients, particularly sugars produced through photosynthesis in the leaves.
- The sugars move from the leaves, where they are synthesized, to other parts of the plant that require energy, like roots, stems, and developing fruits.
- This process is called translocation, ensuring that all parts of the plant receive the necessary nutrients to grow and function effectively.
Structure of Phloem
- Phloem consists of specialized cells, including sieve elements and companion cells.
- Sieve elements form tubes that allow the smooth flow of nutrients, while companion cells help in the loading and unloading of sugars.
Importance of Phloem
- Phloem plays a crucial role in the overall health and survival of plants by distributing energy-rich compounds.
- A healthy phloem system supports growth, reproduction, and resilience against environmental stresses.
Comparison with Other Plant Tissues
- Unlike xylem, which transports water and minerals from the roots to the leaves, phloem's primary function centers on distributing food.
- This distinction emphasizes the unique and essential role of phloem in plant physiology.
In summary, phloem's primary role in plants is the transport of food, ensuring that all parts of the plant receive the nutrients necessary for growth and vitality. Understanding this function is crucial for appreciating how plants sustain themselves and thrive in their environments.
Phloem is a vital tissue in vascular plants, primarily responsible for the transport of food. Let's explore its role in detail.
Food Transport
- Phloem is responsible for transporting organic nutrients, particularly sugars produced through photosynthesis in the leaves.
- The sugars move from the leaves, where they are synthesized, to other parts of the plant that require energy, like roots, stems, and developing fruits.
- This process is called translocation, ensuring that all parts of the plant receive the necessary nutrients to grow and function effectively.
Structure of Phloem
- Phloem consists of specialized cells, including sieve elements and companion cells.
- Sieve elements form tubes that allow the smooth flow of nutrients, while companion cells help in the loading and unloading of sugars.
Importance of Phloem
- Phloem plays a crucial role in the overall health and survival of plants by distributing energy-rich compounds.
- A healthy phloem system supports growth, reproduction, and resilience against environmental stresses.
Comparison with Other Plant Tissues
- Unlike xylem, which transports water and minerals from the roots to the leaves, phloem's primary function centers on distributing food.
- This distinction emphasizes the unique and essential role of phloem in plant physiology.
In summary, phloem's primary role in plants is the transport of food, ensuring that all parts of the plant receive the nutrients necessary for growth and vitality. Understanding this function is crucial for appreciating how plants sustain themselves and thrive in their environments.
Which of the following is classified as a modified stem?- a) Carrot
- b) Potato
- c) Spinach
- d) Onion
Correct answer is option 'B'. Can you explain this answer?
Which of the following is classified as a modified stem?
a)
Carrot
b)
Potato
c)
Spinach
d)
Onion
|
|
Partho Nair answered |
Understanding Modified Stems
Modified stems are specialized structures that perform additional functions beyond the typical characteristics of stems. They can store food, provide support, and help in vegetative reproduction.
Examples of Modified Stems:
- Potato (Correct Answer):
- The potato is a tuber, which is a type of modified stem.
- It stores starch and nutrients, allowing the plant to survive adverse conditions.
- The "eyes" of the potato are actually buds from which new plants can grow.
- Carrot:
- Carrots are taproots, not modified stems.
- They primarily store energy in the form of sugars.
- Spinach:
- Spinach has a typical stem structure and does not have modified stems.
- Its edible parts are leaves.
- Onion:
- An onion is classified as a bulb, which consists of a short stem surrounded by fleshy leaves.
- While it is a modified structure, it is not categorized as a stem like the potato.
Conclusion:
In summary, the potato is classified as a modified stem due to its tuberous nature, which allows it to store nutrients and propagate the plant. Understanding these classifications helps in recognizing the diverse strategies plants use for survival and reproduction.
Modified stems are specialized structures that perform additional functions beyond the typical characteristics of stems. They can store food, provide support, and help in vegetative reproduction.
Examples of Modified Stems:
- Potato (Correct Answer):
- The potato is a tuber, which is a type of modified stem.
- It stores starch and nutrients, allowing the plant to survive adverse conditions.
- The "eyes" of the potato are actually buds from which new plants can grow.
- Carrot:
- Carrots are taproots, not modified stems.
- They primarily store energy in the form of sugars.
- Spinach:
- Spinach has a typical stem structure and does not have modified stems.
- Its edible parts are leaves.
- Onion:
- An onion is classified as a bulb, which consists of a short stem surrounded by fleshy leaves.
- While it is a modified structure, it is not categorized as a stem like the potato.
Conclusion:
In summary, the potato is classified as a modified stem due to its tuberous nature, which allows it to store nutrients and propagate the plant. Understanding these classifications helps in recognizing the diverse strategies plants use for survival and reproduction.
Which type of plant typically has leaves with parallel veins?- a) Monocots
- b) Dicots
- c) Gymnosperms
- d) Bryophytes
Correct answer is option 'A'. Can you explain this answer?
Which type of plant typically has leaves with parallel veins?
a)
Monocots
b)
Dicots
c)
Gymnosperms
d)
Bryophytes
|
Coachify answered |
Monocots, such as grasses and lilies, usually possess leaves with parallel vein patterns. This characteristic distinguishes them from dicots, which typically have a branching vein structure. The vein arrangement affects how plants manage water and nutrients.
Which part of the flower develops into fruit?- a) Petal
- b) Sepal
- c) Ovary
- d) Stamen
Correct answer is option 'C'. Can you explain this answer?
Which part of the flower develops into fruit?
a)
Petal
b)
Sepal
c)
Ovary
d)
Stamen
|
Kds Coaching answered |
The ovary of the flower is the structure that develops into fruit after fertilization occurs. The fruit serves to protect the developing seeds and aid in their dispersal, ensuring the continuation of the plant species.
What term describes the small openings on the surface of leaves that facilitate gas exchange?- a) Stomata
- b) Chloroplasts
- c) Veins
- d) Petioles
Correct answer is option 'A'. Can you explain this answer?
What term describes the small openings on the surface of leaves that facilitate gas exchange?
a)
Stomata
b)
Chloroplasts
c)
Veins
d)
Petioles
|
|
Manoj Iyer answered |
Understanding Stomata
Stomata are tiny openings located on the surface of leaves that play a crucial role in the process of gas exchange in plants.
Key Functions of Stomata:
- Gas Exchange: Stomata allow carbon dioxide (CO2) to enter the leaf for photosynthesis, which is essential for the plant's growth and energy production. At the same time, oxygen (O2), a byproduct of photosynthesis, exits the leaf through these openings.
- Transpiration: Stomata also facilitate transpiration, the process by which water vapor is released from the plant into the atmosphere. This helps in cooling the plant and maintaining its water balance.
- Regulation: The opening and closing of stomata are regulated by guard cells. These specialized cells surround each stoma and control its size, responding to environmental conditions such as light, humidity, and CO2 concentration.
Other Options Explained:
- Chloroplasts: These are organelles within plant cells responsible for photosynthesis but do not facilitate gas exchange.
- Veins: Plant veins transport water and nutrients but are not involved in gas exchange.
- Petioles: The petiole is the stalk that attaches the leaf to the stem, serving a structural role rather than a function in gas exchange.
In conclusion, stomata are essential for the survival of plants, enabling them to take in necessary gases and release byproducts efficiently. Their unique structure and function make them vital components of the leaf's anatomy.
Stomata are tiny openings located on the surface of leaves that play a crucial role in the process of gas exchange in plants.
Key Functions of Stomata:
- Gas Exchange: Stomata allow carbon dioxide (CO2) to enter the leaf for photosynthesis, which is essential for the plant's growth and energy production. At the same time, oxygen (O2), a byproduct of photosynthesis, exits the leaf through these openings.
- Transpiration: Stomata also facilitate transpiration, the process by which water vapor is released from the plant into the atmosphere. This helps in cooling the plant and maintaining its water balance.
- Regulation: The opening and closing of stomata are regulated by guard cells. These specialized cells surround each stoma and control its size, responding to environmental conditions such as light, humidity, and CO2 concentration.
Other Options Explained:
- Chloroplasts: These are organelles within plant cells responsible for photosynthesis but do not facilitate gas exchange.
- Veins: Plant veins transport water and nutrients but are not involved in gas exchange.
- Petioles: The petiole is the stalk that attaches the leaf to the stem, serving a structural role rather than a function in gas exchange.
In conclusion, stomata are essential for the survival of plants, enabling them to take in necessary gases and release byproducts efficiently. Their unique structure and function make them vital components of the leaf's anatomy.
What is the primary function of the stem in a plant?- a)Absorption of water
- b)Support and transport
- c)Photosynthesis
- d)Reproduction
Correct answer is option 'B'. Can you explain this answer?
What is the primary function of the stem in a plant?
a)
Absorption of water
b)
Support and transport
c)
Photosynthesis
d)
Reproduction
|
|
EduRev Class 6 answered |
The stem serves as the main support structure of a plant, elevating leaves and flowers to access sunlight while transporting water, nutrients, and food between the roots and other parts of the plant.This vital function ensures that all parts of the plant receive the necessary resources for survival.
Which of the following leaves have reticulate venation?- a)Wheat
- b)Tulsi
- c)Maize
- d)Grass
Correct answer is option 'B'. Can you explain this answer?
Which of the following leaves have reticulate venation?
a)
Wheat
b)
Tulsi
c)
Maize
d)
Grass
|
Shiksha Academy answered |
- Reticulate (net-like) venation is a characteristic feature of most dicot plants.
- Tulsi (a dicot plant) has reticulate venation.
- Wheat, Maize, and Grass are monocots, and they typically show parallel venation, not reticulate.
Which of the following is a taproot system?- a)Grass
- b)Carrot
- c)Wheat
- d)Maize
Correct answer is option 'B'. Can you explain this answer?
Which of the following is a taproot system?
a)
Grass
b)
Carrot
c)
Wheat
d)
Maize
|
Dr Manju Sen answered |
Carrot has a taproot system where one main root grows downwards with smaller lateral roots.
What are the two main components of a stamen?- a)Ovary and style
- b)Anther and filament
- c)Petal and sepal
- d)Stigma and ovule
Correct answer is option 'B'. Can you explain this answer??
What are the two main components of a stamen?
a)
Ovary and style
b)
Anther and filament
c)
Petal and sepal
d)
Stigma and ovule
|
|
Ishaan Chawla answered |
Understanding the Stamen
The stamen is a crucial part of a flower's reproductive system. It consists of two main components: the anther and the filament.
Components of Stamen
Why Other Options Are Incorrect
- Option (a) "Ovary and style" refers to parts of the pistil, which is the female reproductive structure of the flower.
- Option (c) "Petal and sepal" are parts of the flower that are primarily involved in attracting pollinators and protecting the reproductive organs but are not part of the stamen.
- Option (d) "Stigma and ovule" are also components of the pistil, with the stigma receiving pollen and the ovule developing into seeds after fertilization.
In conclusion, the correct answer is option 'B' because the anther and filament are the two defining components that make up a stamen, highlighting its role in the male reproductive process of flowering plants.
The stamen is a crucial part of a flower's reproductive system. It consists of two main components: the anther and the filament.
Components of Stamen
- Anther:
- The anther is the part of the stamen that produces pollen grains, which contain the male gametes (sperm cells) necessary for fertilization.
- It is typically located at the top of the stamen and is often yellow or orange, making it easily identifiable. - Filament:
- The filament is a slender stalk that supports the anther and holds it in a position where pollinators can easily access the pollen.
- It connects the anther to the base of the flower, ensuring that the pollen is available for transfer to the stigma of the pistil during pollination.
Why Other Options Are Incorrect
- Option (a) "Ovary and style" refers to parts of the pistil, which is the female reproductive structure of the flower.
- Option (c) "Petal and sepal" are parts of the flower that are primarily involved in attracting pollinators and protecting the reproductive organs but are not part of the stamen.
- Option (d) "Stigma and ovule" are also components of the pistil, with the stigma receiving pollen and the ovule developing into seeds after fertilization.
In conclusion, the correct answer is option 'B' because the anther and filament are the two defining components that make up a stamen, highlighting its role in the male reproductive process of flowering plants.
What is the main function of root hairs?- a) Absorb light
- b) Absorb water and nutrients
- c) Protect the root
- d) Store food
Correct answer is option 'B'. Can you explain this answer?
What is the main function of root hairs?
a)
Absorb light
b)
Absorb water and nutrients
c)
Protect the root
d)
Store food
|
|
Get Idea answered |
Root hairs significantly increase the surface area of the root, enhancing the plant's ability to absorb water and essential nutrients from the soil. This increased absorption capability is vital for the plant's growth and overall health.
What part of the plant is responsible for losing water vapor through small pores?- a) Root
- b) Stem
- c) Leaf
- d) Flower
Correct answer is option 'C'. Can you explain this answer?
What part of the plant is responsible for losing water vapor through small pores?
a)
Root
b)
Stem
c)
Leaf
d)
Flower
|
|
Get Idea answered |
Leaves lose water vapor through tiny openings called stomata. This process, known as transpiration, helps regulate water loss and maintains the plant's temperature while also facilitating the uptake of carbon dioxide for photosynthesis.
Which part of the plant is primarily involved in photosynthesis?- a) Root
- b) Stem
- c) Leaf
- d) Flower
Correct answer is option 'C'. Can you explain this answer?
Which part of the plant is primarily involved in photosynthesis?
a)
Root
b)
Stem
c)
Leaf
d)
Flower
|
|
Get Idea answered |
Leaves are the primary sites of photosynthesis in plants, where sunlight, water, and carbon dioxide are converted into glucose and oxygen. This process is essential for providing energy for the plant and is the foundation of the food chain for most life on Earth.
Chapter doubts & questions for Plants - Preparation for NCEE 2025 is part of Primary 6 exam preparation. The chapters have been prepared according to the Primary 6 exam syllabus. The Chapter doubts & questions, notes, tests & MCQs are made for Primary 6 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests here.
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