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Cell - The Structure and Functions - 2 Video Lecture | Biology Class 6 ICSE

FAQs on Cell - The Structure and Functions - 2 Video Lecture - Biology Class 6 ICSE

1. What is the basic structure of a cell?

Ans. The basic structure of a cell includes the cell membrane, cytoplasm, and nucleus. The cell membrane is a protective barrier that surrounds the cell, the cytoplasm is a jelly-like substance where cell organelles are located, and the nucleus contains the cell's genetic material (DNA) and controls its activities.

2. What are the main functions of a cell?

Ans. The main functions of a cell include growth, reproduction, response to stimuli, metabolism, and maintenance of homeostasis. Cells take in nutrients, convert them into energy, and produce waste products. They also replicate to ensure the continuation of life.

3. What are the differences between plant and animal cells?

Ans. Plant cells have a rigid cell wall, chloroplasts for photosynthesis, and a large central vacuole for storage, while animal cells do not have these structures. Instead, animal cells have small vacuoles and are more flexible in shape. Both types of cells share common organelles like the nucleus and mitochondria.

4. What is the role of the nucleus in a cell?

Ans. The nucleus acts as the control center of the cell. It contains the cell's genetic material (DNA) and is responsible for regulating gene expression and cell division. The nucleus also plays a key role in the synthesis of ribosomes, which are essential for protein production.

5. How do cells obtain energy?

Ans. Cells obtain energy primarily through the process of cellular respiration. This process involves breaking down glucose (obtained from food) in the presence of oxygen to produce energy in the form of ATP (adenosine triphosphate). Some cells, like those in plants, can also obtain energy through photosynthesis.

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Oct 24, 2025 Last updated

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