Pick up the photosynthetic electron transport, which is predominant:
Correct answer: D. Non-cyclic electron flow or Z - scheme
- A. Non-cyclic electron flow
- B. Z-scheme
- C. Cyclic electron flow
- D. Non-cyclic electron flow or Z - scheme
Explanation
The correct answer is non-cyclic electron flow. This pathway is the main route for electron transport during the light-dependent reactions of photosynthesis. It results in the production of ATP, NADPH, and oxygen, which are essential for the Calvin cycle. The Z-scheme is simply a diagrammatic representation of this process. On the other hand, cyclic electron flow only produces ATP and does not contribute directly to the synthesis of NADPH or oxygen, making it less predominant.
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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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