Exam 18: Energy and Metabolism

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Overall, how much ATP is produced when 1 molecule of glucose is oxidized to 6 molecules of carbon dioxide through glycolysis, aerobic oxidation of pyruvate, the citric acid cycle, and oxidative phosphorylation?

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Which of the following choices illustrates the general pathway by which fats are catabolized?

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The following is step 3 of the citric acid cycle.Isocitrate is converted into α-ketoglutarate by a(n)_______ reaction followed by _______. The following is step 3 of the citric acid cycle.Isocitrate is converted into α-ketoglutarate by a(n)_______ reaction followed by _______.

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Whether a sugar starts out as a fructose, galactose, or glucose, it must undergo enzyme-catalyzed reactions in order to become a single type of monosaccharide so that it can go through glycolysis, the second stage of catabolism.Which monosaccharide must all of these sugars become?

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Which choice BEST describes the purpose of the following step of glycolysis? Which choice BEST describes the purpose of the following step of glycolysis?

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What occurs during oxidative phosphorylation?

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How many times will a fatty acid with 20 carbons go through β-oxidation?

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Which statement about the role of oxygen in the electron transport chain is FALSE?

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Which of the following statements describes what can happen to pyruvate after it is produced during glycolysis? I.Pyruvate immediately enters the citric acid cycle. II)It is oxidized. III)It is reduced.

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Every acetyl-CoA molecule that enters the citric acid cycle provides the energy to phosphorylate _______ APD to ATP.

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What ultimately happens to oxygen as a result of the electron transport chain?

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The citric acid cycle has a unique circular appearance when written due to the regeneration of oxaloacetate.Which of the following molecules is oxaloacetate? The citric acid cycle has a unique circular appearance when written due to the regeneration of oxaloacetate.Which of the following molecules is oxaloacetate?

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Which biomolecule provides fuel for the brain?

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The second step of β-oxidation is shown below.What type of reaction is this? The second step of β-oxidation is shown below.What type of reaction is this?

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ATP-synthase, an enzyme that catalyzes the phosphorylation of ADP to ATP, is found in the

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Where in the cell does glycolysis occur?

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What is produced by β-oxidation?

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The following diagrams illustrate the two aqueous spaces and the inner membrane of the mitochondrial.In which diagram is the relative concentration of protons such that oxidative phosphorylation could occur if ATP synthase were present? The following diagrams illustrate the two aqueous spaces and the inner membrane of the mitochondrial.In which diagram is the relative concentration of protons such that oxidative phosphorylation could occur if ATP synthase were present?

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Which statement does NOT describe the safest and healthiest way for a person to lose weight?

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What is the fate of oxygen in the electron transport chain?

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