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Chapter 7

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created 3 years ago by kathy_holleman
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Biology 1406, Summer Dr. Kirk, Test 3

Grade levels:
College: First year

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  • 1
    The equation, C6H12O6 + 6O2-->6CO2 + 6H2O (ATP + Heat), describes a reaction that
    is exergonic
  • 2
    The equation, C6H12O6 + 6O2-->6CO2 + 6H2O (ATP + Heat), describes which of the following processes?
    cell respiration
  • 3
    Which of the following are the final by-products of glucose oxidation during aerobic cell respiration?
    ATP, heat, and carbon dioxide
  • 4
    Which of the following processes will occur in the presence or absence of oxygen?
    glycolysis
  • 5
    Where does glycolysis takes place?
    cytosol
  • 6
    Which of the following is NOT a process of aerobic respiration?
    lactate fermentation
  • 7
    Which of the following is TRUE of the citric acid cycle?
    It yields ATP, NADH, and FADH2 as energy intermediates.
  • 8
    Which of the following function: location relationship is INCORRECT?
    acetyl CoA formation; cytosol
  • 9
    Which compound has the highest free energy and produces the most ATP when oxidized?
    glucose
  • 10
    Cellular respiration produces the most chemical in the form of ATP from which of the following?
    oxidative phosphorylation
  • 11
    How many ATP and NADH molecules are produced from each molecule of glucose in the citric acid cycle only?
    2 ATP, 6 NADH
  • 12
    How many net ATP and NADH molecules are produced from one molecule of glucose during glycolysis?
    2 ATP, 2 NADH
  • 13
    High-energy electrons from molecules of NADH and FADH2 are transferred to a chain of proteins within the electron transport chain. What is the final electron acceptor of the electron transport chain?
    cytochrome c
  • 14
    Which of the following statements is TRUE of both aerobic and anaerobic respiration?
    Both use glycolysis to oxidize glucose to pyruvate and both produce NADH as high-energy intermediates.
  • 15
    Which would be TRUE if a metabolic poison were to completely inhibit the function of mitochondrial ATP synthase?
    The pH difference across the inner mitochondrial membrane would increase.
  • 16
    Which of the following is most directly responsible for driving ATP synthase and the production of ATP in cellular respiration?
    The ability of oxygen to rapidly capture an electron and energize ATP synthase.
  • 17
    Which of the following statements about the electron transport chain in cell respiration is CORRECT?
    The loss in free energy of the electron initially donated by NADH is used to transport H+ across the inner mitochondrial membrane against its electrochemical gradient.
  • 18
    Assuming a fat molecule can be oxidized into 2 glycerol molecules, which are immediately converted to glyceraldehyde-3-phosphate, in intermediate glycolysis, how many ATP can be produced from a fat molecule?
    36
  • 19
    Where are the protein complexes associated with the electron transport chain located?
    mitochondrial inner membrane
  • 20
    During glycolysis, glucose is broken down into
    pyruvate.
  • 21
    The ATP made during glycolysis is generated by
    substrate-level phosphorylation.
  • 22
    During the cleavage stage of glycolysis, fructose-1, 6 biphosphate is broken down into
    two molecules of glyceraldehyde-3-phosphate.
  • 23
    In addition to ATP, what are the end products of glycolysis?
    NADH and pyruvate
  • 24
    In the citric acid cycle, the acetyl group is removed from acetyl CoA and attached to oxaloacetate to form
    citrate
  • 25
    In the citric acid cycle, succinate is oxidized to form
    fumarate.
  • 26
    In the citric acid cycle, malate is oxidized to form
    oxaloacetate
  • 27
    The enzyme responsible for oxidizing pyruvate once it enters the mitochondrial matrix is
    pyruvate dehydrogenase.
  • 28
    Which pathway shows the correct path of electron transfer from a molecule of NADH?
    NADH hydrogenase-->ubiquinone-->cytochrome b-c1-->cytochrome c--> cytochrome oxidase-->O2
  • 29
    Which pathway shows the correct path of electron transfer from a molecule of FADH2?
    succinate reductase --> ubiquinone --> cytochrome b-c1--> cytochrome c --> cytochrome oxidase -->O2
  • 30
    Energy released by the electron transport chain is used to pump H+ ions into which location?
    mitochondrial intermembrane space
  • 31
    Sports physiologists at an Olympic training center wanted to monitor athletes to determine at what point their muscles were functioning anaerobically. They could do this by checking for the buildup of which molecule?
    lactate
  • 32
    Which of the following is INCORRECT for ethanol fermentation?
    Results in a net production of NADH.
  • 33
    Which of the following does NOT occur during yeast fermentation?
    Lactate is produced
  • 34
    When muscles cells are deprived of oxygen, the heart still pumps. What must the heart cells be able to do?
    derive sufficient energy from fermentation
  • 35
    Which of the following is NOT considered a secondary metabolite?
    glucose
  • 36
    Vanillin is to flavonoids as atropine is to
    alkoloids.