ATP formation through oxidative phosporylation involves:
Correct answer: C. Chemiosmosis
- A. Light reactions
- B. Dark reactions
- C. Chemiosmosis
- D. Fermentation
Explanation
ATP formation through oxidative phosphorylation involves the transfer of electrons from NADH and FADH2 to a series of electron carriers, which generates a proton gradient across the inner mitochondrial membrane. The energy stored in the proton gradient is then used by ATP synthase to produce ATP through the process of chemiosmosis. This is the final stage of cellular respiration and is responsible for producing the majority of ATP molecules (28-34 ATP molecules per glucose molecule).
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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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