Campbell Biology Ch 9

Last update by mayurcooled on 04/23/2014
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Which of the following statements about glycolysis false?

A) Glycolysis has steps involving oxidation-reduction reactions.

B) The enzymes of glycolysis are located in the cytosol of the cell.

C) Glycolysis can operate in the complete absence of O2.

D) The end products of glycolysis are CO2 and H2O.

E) Glycolysis makes ATP exclusively through substrate-level phosphorylation.

Answer:
D) The end products of glycolysis are CO2 and H2O.

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    Substrate-level phosphorylation accounts for approximately what percentage of the ATP formed during glycolysis?

    A) 0%

    B) 2%

    C) 10%

    D) 38%

    E) 100%

    E) 100%
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    During glycolysis, when glucose is catabolized to pyruvate, most of the energy of glucose is

    A) transferred to ADP, forming ATP.

    B) transferred directly to ATP.

    C) retained in the pyruvate.

    D) stored in the NADH produced.

    E) used to phosphorylate fructose to form fructose-6-phosphate.

    C) retained in the pyruvate.
  • Georgia Leonard

    In addition to ATP, what are the end products of glycolysis?

    A) CO2 and H2O

    B) CO2 and pyruvate

    C) NADH and pyruvate

    D) CO2 and NADH

    E) H2O, FADH2, and citrate

    C) NADH and pyruvate
  • Georgia Leonard

    The free energy for the oxidation of glucose to CO2 and water is -686 kcal/mole and the free energy for the reduction of NAD+ to NADH is +53 kcal/mole. Why are only two molecules of NADH formed during glycolysis when it appears that as many as a dozen could be formed?

    A) Most of the free energy available from the oxidation of glucose is used in the production of ATP in glycolysis.

    B) Glycolysis is a very inefficient reaction, with much of the energy of glucose released as heat.

    C) Most of the free energy available from the oxidation of glucose remains in pyruvate, one of the products of glycolysis.

    D) There is no CO2 or water produced as products of glycolysis.

    E) Glycolysis consists of many enzymatic reactions, each of which extracts some energy from the glucose molecule.

    C) Most of the free energy available from the oxidation of glucose remains in pyruvate, one of the products of glycolysis.
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    Starting with one molecule of glucose, the "net" products of glycolysis are

    A) 2 NAD+, 2 H+, 2 pyruvate, 2 ATP, and 2 H2O.

    B) 2 NADH, 2 H+, 2 pyruvate, 2 ATP, and 2 H2O.

    C) 2 FADH2, 2 pyruvate, 4 ATP, and 2 H2O.

    D) 6 CO2, 6 H2O, 2 ATP, and 2 pyruvate.

    E) 6 CO2, 6 H2O, 36 ATP, and 2 citrate.

    B) 2 NADH, 2 H+, 2 pyruvate, 2 ATP, and 2 H2O.
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    In glycolysis, for each molecule of glucose oxidized to pyruvate

    A) 2 molecules of ATP are used and 2 molecules of ATP are produced.

    B) 2 molecules of ATP are used and 4 molecules of ATP are produced.

    C) 4 molecules of ATP are used and 2 molecules of ATP are produced.

    D) 2 molecules of ATP are used and 6 molecules of ATP are produced.

    E) 6 molecules of ATP are used and 6 molecules of ATP are produced.

    B) 2 molecules of ATP are used and 4 molecules of ATP are produced.
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    D) has been reduced as a result of a redox reaction involving the loss of an inorganic phosphate.

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    E) An agent that blocks the passage of electrons along the electron transport chain

    C) An agent that closely mimics the structure of glucose but is not metabolized
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    B) acetyl CoA, FADH2, and CO2.

    C) acetyl CoA, FAD, H2, and CO2.

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    E) acetyl CoA, NAD+, ATP, and CO2.

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