The terminal electron acceptor in electron transport chain is:
Correct answer: D. Oxygen
- A. Hydrogen
- B. Iron
- C. Cytochrome
- D. Oxygen
Explanation
The terminal electron acceptor in the electron transport chain is oxygen (O2). In aerobic respiration, which occurs in the presence of oxygen, the final stage of the electron transport chain involves the transfer of electrons to molecular oxygen.
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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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