Which of the light is mainly absorbed by the plants?
Correct answer: D. Both B and C
- A. Orange
- B. Red
- C. Blue
- D. Both B and C
Explanation
Plants mainly absorb red and blue light for photosynthesis, with chlorophyll a and b being the primary pigments responsible for this absorption. However, they also absorb other wavelengths of light, including orange and yellow, although to a lesser extent. The green light is reflected by chlorophyll, which is why plants appear green to the human eye.
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Cellular respiration explains how cells release energy from glucose through glycolysis, the link reaction, Krebs cycle and electron transport chain. It includes ATP production, substrate-level and oxidative phosphorylation, aerobic versus anaerobic respiration, and the roles of mitochondria, oxygen and fermentation in energy transfer.
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