cell respiration quiz

Last Updated By sonvo7bball on 10/24/2009
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Is cellular respiration endergonic or exergonic reactions and how much energy are released or absorbed within the reaction itself?

Answer:
a)  endergonic, 686 kcal/mol gluc
b)  exergonic, 686 kcal/mol gluc
c)  endergonic, -686 kcal/mol gluc
d)  exergonic, -686 kcal/mol gluc
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  • sonvo7bball
    In cellular respiration, which substance is oxidized and which is reduced?
    a)glucose is oxidized, NAD+ is reduced
    b)glucose is reduced, NAD+ is oxidized
    c)oxygen is oxidized, NAD+ is reduced
    d)carbon dioxide is oxidized, NAD+ is reduced
    a)carbon dioxide is oxidized, NAD+ is reduced
  • sonvo7bball
    What is the tendency of Hydrogen atoms when they bond with Oxygen to form water?
    a)

    downhill electrons that release their potential energy uphill


    b)

    uphill electrons that release their potential energy downhill


    c)stable electron that maintains their potential energy
    b)stable electron that maintains their potential energy
  • sonvo7bball
    Enzymes called dehydrogenases break up 2 hydrogen atoms from glucose during glycolysis and are passed to NAD+, how many electrons and how many protons are passed to NAD+?
    a)

    2 e-, 2 p+


    b)1e-, 2 p+
    c)2e-, 1 p+
    d)1 e-, 1 p+
    c)1 e-, 1 p+
  • sonvo7bball

    a process by which enzymes transfer phosphate groups from a substrate to ADP is called?


    a)oxidative phosphorylation
    b)

    chemiosmosis


    c)fermentation
    d)

    substrate level phosphorylation

    d)

    substrate level phosphorylation

  • sonvo7bball

    What's another term for pyruvates?


    a)pyruvic acid
    b)glyceraldehyde
    c)glycemic acid
    d)glycolytic acid
    b)glycolytic acid
  • sonvo7bball
    Glycolysis has 2 types of phases: they are...
    a)pyruvate making phase and NAD+ reducing phase
    b)energy payoff phase and NAD+ reducing phase
    c)energy payoff phase and energy investment phase
    d)

    8 step process, not 2

    c)

    8 step process, not 2

  • sonvo7bball
    Which enzyme transfers phosphate groups in glycolysis to ADP?
    a)kinases
    b)dehydrogenases
    c)cyclins
    d)prometase
    a)prometase
  • sonvo7bball
    Which organic group is removed from pyruvates before the Kreb's cycle begin in able for carbon dioxide to form as an excess?
    a)amino
    b)carbonyl
    c)carboxyl
    d)acetic
    c)acetic
  • sonvo7bball
    which part of the protein always shift between reduced and oxidized states as they accept and donate electrons?
    a)prosthetic groups
    b)

    meme groups


    c)cytochrome groups
    d)ubiquinone groups
    a)ubiquinone groups
  • sonvo7bball

    During the transfer of electrons by the NADH and FADH2 to the ETC, what is the pattern of transfer within the ETC chain?


    a)flavoprotein - ubiquinone - iron-sulfur protein - cytochromes A3
    b)iron-sulfur protein - flavoprotein - cytochromes - ubiquinone A3
    c)flavoprotein - cytochrome A3- ubiquinone - iron-sulfur protein
    d)flavoprotein - iron-sulfur protein - ubiquinone - cytochrome A3
    d)flavoprotein - iron-sulfur protein - ubiquinone - cytochrome A3
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Free Quiz Question From cell respiration quiz
Question: Is cellular respiration endergonic or exergonic reactions and how much energy are released or absorbed within the reaction itself?
Answer:
endergonic, 686 kcal/mol gluc
exergonic, 686 kcal/mol gluc
endergonic, -686 kcal/mol gluc
exergonic, -686 kcal/mol gluc