What is the role of oxygen in respiration?
A) It is formed from the oxidation of water at the beginning of the electron transport chain.
B) It flows through the electron transport chain,losing energy.
C) It is reduced at the end of the electron transport chain,forming water.
D) It is necessary to obtain any ATP from glucose.
E) It flows down its concentration gradient through an ATPase to produce ATP.
Correct Answer:
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A)regenerate
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Q28: The electron transport chain produces a(n)_ gradient.
A)electron
B)ATP
C)NADH
D)oxygen
E)proton
Q29: The net ATP production in glycolysis is
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