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Pigments: Chlorophyll A & B Video Lecture | Biology for JAMB
FAQs on Pigments: Chlorophyll A & B Video Lecture - Biology for JAMB
| 1. What are pigments? |  |
Ans. Pigments are natural compounds that give color to plants, animals, and other organisms. They absorb certain wavelengths of light and reflect or transmit others, resulting in the perception of color.
| 2. What are chlorophyll A and B? | |
Ans. Chlorophyll A and B are the primary pigments found in plants and algae responsible for photosynthesis. Chlorophyll A absorbs light primarily in the red and blue-violet regions, while chlorophyll B absorbs light in the blue and red-orange regions.
| 3. How do chlorophyll A and B differ? | |
Ans. Chlorophyll A and B differ in their chemical structure and absorbance spectra. Chlorophyll A has a methyl group and a carbonyl group, while chlorophyll B has an aldehyde group instead of the methyl group. Additionally, chlorophyll A absorbs light more efficiently in the red region, while chlorophyll B absorbs light more efficiently in the blue region.
| 4. What is the role of chlorophyll A and B in photosynthesis? | |
Ans. Chlorophyll A and B play a crucial role in photosynthesis by capturing light energy and converting it into chemical energy. They absorb photons of light, which excite electrons and initiate a series of reactions that produce ATP and NADPH, both of which are essential for the synthesis of glucose.
| 5. Can chlorophyll A and B be found in other organisms besides plants and algae? | |
Ans. While chlorophyll A and B are primarily found in plants and algae, they can also be present in some bacteria and photosynthetic protists. However, the chemical composition and absorption spectra of chlorophylls in these organisms may vary slightly from those in plants and algae.
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