Which one of the following would NOT limit photosynthesis?
Correct answer: A. Oxygen
- A. Oxygen
- B. Carbon dioxide
- C. Light
- D. Chlorophyll
Explanation
The correct answer is oxygen. While oxygen is involved in the process of photorespiration, it is not a primary factor that limits photosynthesis. In photosynthesis, the availability of carbon dioxide and light is crucial, as they are required for the light-dependent and light-independent reactions. Chlorophyll is also essential for capturing light energy. Therefore, a lack of any of these three components can directly limit the rate of photosynthesis, unlike oxygen, which is not a direct limiting reactant.
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About Bioenergetics
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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