The immediate energy source that drives ATP synthesis by ATP synthase during oxidative phosphorylation is
A) the oxidation of glucose and other organic compounds.
B) the flow of electrons down the electron transport chain.
C) the affinity of oxygen for electrons.
D) the H+ concentration gradient across the inner mitochondrial membrane.
E) the transfer of phosphate to ADP.
Ans: D) the H+ concentration gradient across the inner mitochondrial membrane.
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Which type of white blood cells produces defensive proteins called antibodies?
A. Natural killer cells B. B cells C. Phagocytic cells D. T cells
Which of the following best describes the basic structure of the plasma membrane of a cell?
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Which of the following is a fundamental characteristic of the Notch pathway?
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