Question

The function of oxygen in aerobic respiration is to:

a) carry hydrogen ions from the Krebs cycle to the electron transport chain
b) bind electrons and hydrogen ions at the end of the electron transport chain
c) attach a high energy phosphate group to ADP
d) form carbon dioxide in the Krebs cycle
e) donate electrons to NADH to make it release a hydrogen ion

Answer 1

Oxygen's role in aerobic respiration is to act as the final electron acceptor in the electron transport chain. It combines with low-energy electrons and hydrogen ions to form water, driving the ATP synthesis.

Step-by-step explanation:

Oxygen's role in aerobic respiration is to act as the final electron acceptor in the electron transport chain. As high-energy electrons are passed through the chain, they gradually lose energy. At the end of the chain, oxygen combines with low-energy electrons and hydrogen ions to form water. This process drives the ATP-producing reactions and allows the synthesis of ATP.

Answer 2

Aerobic respiration uses oxygen to break down glucose, amino acids, and fatty acids and is the main way the body generates adenosine triphosphate (ATP), which supplies energy to the muscles.

Step-by-step explanation:

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