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    shoushou Posts: 11, Reputation: 1
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    Jan 28, 2014, 03:00 PM
    Did I answer this correctly? Biology Question!
    1. Which of the following processes occurs during the citric acid cycle?

    a. The oxidation of pyruvateb.
    b. Oxidative phosphorylationc.
    c. The hydrolysis of ATPd.
    d. The oxidation of FADe.
    e. None of the above processes occurs during the citric acid cycle.

    ANS: e


    2. The enzyme that catalyzes the transfer of a two-carbon acetyl group to oxaloacetate is…
    a. Hexokinaseb.
    b. Pyruvate kinasec.
    c. Pyruvate dehydrogenased.
    d. Citrate synthasee.
    e. Succinate dehydrogenase

    ANS: d


    3. Glycolysis takes place…

    a. In the cytosol of essentially all cellsb.
    b. In the cytosol of prokaryotic cells and in the mitochondrial matrix of eukaryotic cellsc.
    c. In the chloroplasts of plant cellsd.
    d. Only in the cytosol of prokaryotic cellse.
    e. All of the above describe the locations in which glycolysis takes place.

    ANS: a


    4. Nicotinamide adenine dinucleotide is…
    a. A Pi donor for ATP synthesis by substrate-level phosphorylationb.
    b. An electron and energy carrierc.
    c. A dehydrogenased.
    d. A high-energy intermediate that enters the citric acid cyclee.
    e. None of the above is true of nicotinamide adenine dinucleotide

    ANS: a


    5. In a plant cell, the enzymes that catalyze pyruvate oxidation and the citric acid cycle are located primarily…
    a. On the inner mitochondrial membraneb.
    b. In the cytosolc.
    c. In the chloroplastd.
    d. In the mitochondrial matrixe.
    e. On the outer mitochondrial membrane

    ANS: d


    6. Which one of the following reactions best describes the reactants and products of the citric acid cycle?
    a. Glucose + 38 ADP + 38 Pi + 6 O2 -> 6 CO2 + 6 H2O + 38 ATPb.
    b. 10 NADH + 2 FADH2 + 34 ADP + 34 Pi + 10 H+ -> 34 ATP + 10 NAD+ + 2 FADc.
    c. Glucose + 2 ADP + 2 Pi + 2 NAD+ -> 2 pyruvate + 2 NADH + 2 ATP + 2 H+d.
    d. Pyruvate + NAD+ + CoA -> CO2 + NADH + H+ + acetyl-CoAe.
    e. Acetyl-CoA + 3 NAD+ + 1 FAD + 1 ADP + 1 Pi + 2 H2O -> 1 CoA + 3 NADH + 1 FADH2 + 1 ATP + 2 CO2 + 3 H+

    ANS: e

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