Exam 14: Introduction to Metabolism

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In redox half-reactions, a more positive standard reduction potential means I.the oxidized form has a higher affinity for electrons. II.the oxidized form has a lower affinity for electrons. III.the reduced form has a higher affinity for electrons. IV.the greater the tendency for the oxidized form to accept electrons.

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Which of the following are factors that contribute to the large negative standard free energy change for the reaction shown below? ATP \rarr ADP + Pi

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The enzyme inorganic pyrophosphatase catalyzes the hydrolysis of bonds in ___.

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Matching -1,3-Bisphosphoglycerate is an example of a(n)______.

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Matching -A metabolic reaction resulting in the formation of FADH2 is an example of a(n)___ reaction.

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Which of the choices correctly ranks the following compounds from lowest level of oxidation to highest level of oxidation? Which of the choices correctly ranks the following compounds from lowest level of oxidation to highest level of oxidation?

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The ______ is equal to the rate of synthesis minus the rate of breakdown of the metabolic intermediates.

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Matching -The study of the complete set of proteins synthesized in the cell in response to changing conditions is called ______.

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Matching -The enzyme ______ catalyzes the transfer of a phosphoryl group from ATP to AMP.

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Consider the following metabolic reaction: 3-Phosphoglycerate \rarr 2-Phosphoglycerate Δ\Delta G°' = +4.40 kJ/mol What is the Δ\Delta G for this reaction when the concentration of 2-phosphoglycerate is 0.290 mM and the concentration of 3-phosphoglycerate is 2.90 mM at 37°C?

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Consider the following metabolic reaction important in muscle and nerve cells: ATP + creatine \rightleftarrows phosphocreatine + ADP Δ\Delta G°' = +12.6 kJ/mol Under intracellular conditions, the Δ\Delta G for the reaction, which is catalyzed by the enzyme creatine kinase, is ~0 kJ/mol.From this information we can conclude that

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Matching -The enzyme ______ catalyzes the reaction, PPi \rarr 2 Pi.

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