Exam 8: Aerobic and Anaerobic Forms of Metabolism

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Explain what the fate of pyruvate would be under aerobic conditions and anaerobic conditions in a vertebrate muscle cell. Include the name(s) of the enzyme(s) used.

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Under aerobic conditions, pyruvate undergoes pyruvate oxidation and is converted to acetyl-coA with the help of coenzyme A. Under anaerobic conditions, pyruvate undergoes fermentation and is converted to lactate (or lactic acid) with the help of lactate dehydrogenase.

Which molecule is abundant in skeletal muscle cells of vertebrates?

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A

If 43 protons pass through the ATP synthase, _______ ATP are produced.

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B

During a short intense bout of heavy weight lifting in a human, what is the source of the initial supply of ATP?

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In the term "fast glycolytic" used to describe muscle fibers, "fast" refers to

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Refer to the figure shown. Refer to the figure shown.   According to the figure, which term best describes the y axis? According to the figure, which term best describes the y axis?

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Explain why reactive oxygen species (ROS) can be harmful to cells.

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The substrate _______ is required for glycolysis to begin.

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Which statement regarding lactic acid is true?

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Glucose undergoes 10 chemical reactions during glycolysis to become pyruvate. Name the reactants, enzymes, and products of two ATP-producing reactions in glycolysis.

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The specific role of oxygen in the cell is to

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The substrate needed to initiate the Krebs cycle is

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If the ratio of NAD to NADH2 in a cell is 1 (NAD/NADH2 = 1), the cell is in

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If a P/O ratio is 1.9, oxidative phosphorylation and electron transport are said to be

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What occurs during anaerobiosis in invertebrates?

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Refer to the figure shown. Refer to the figure shown.   Which graph(s) represent(s) heavy submaximal exercise? Which graph(s) represent(s) "heavy submaximal exercise"?

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Which of the following would you expect to see in abundance in the muscles of a sprinter?

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Explain, on the molecular level, why muscles can generate ATP under anaerobic conditions, but neurons cannot.

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Aerobic substrate-level phosphorylation produces a total of _______ ATP molecules per glucose molecule.

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Which chemical reaction of the Krebs cycle produces GTP?

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