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Question

During aerobic respiration the final electron acceptor is

A
Cyto b
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B
NADH2
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C
Water
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D
Oxygen
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Solution

The correct option is D Oxygen
  • ATP is produced during the process of oxidative phosphorylation in the mitochondria which is a part of aerobic respiration.
  • The electron transport chain plays an important role in this process. The electrons move through a series of electron donors and carriers that lead to the formation of a potential gradient.
  • This gradient helps in ATP synthesis. During this process, oxygen is reduced by the hydrogen from NADH and it finally accepts the electron in the chain.
  • Thus it is the terminal electron acceptor that results in the formation of water molecules.
    Thus the correct answer is option D.

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