Normally oxidative phosphorylation is coupled with the:
Correct answer: C. Respiratory electron transport chain
- A. Photosynthetic electron transport chain
- B. Non-cyclic electron transport chain
- C. Respiratory electron transport chain
- D. Cyclic electron transport chain
Explanation
Oxidative phosphorylation is the final stage of cellular respiration and takes place in the mitochondria. It is directly linked to the respiratory electron transport chain, where electrons are passed through a series of protein complexes, ultimately driving the synthesis of ATP. The correct option, the respiratory electron transport chain, reflects this process. The other options refer to mechanisms within photosynthesis that do not couple with oxidative phosphorylation.
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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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In the respiratory electron transport chain, the third ATP is produced by the oxidation of:
In the respiratory electron transport chain cytochrome a is reduced by the oxidation of:
In the respiratory electron transport chain cytochrome b is reduced by:
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