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Home Microbiology Energy Release and Conservation Comments

  • Question
  • The final electron acceptor in the electron transport chain is


  • Options
  • A. CoQ
  • B. a cytochrome
  • C. FMN
  • D. oxygen

  • Correct Answer
  • oxygen 


  • Energy Release and Conservation problems


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    • 1. Suppose a eukaryotic cell had a mutation that prevented the production of cytochrome c. As a result of this mutation, which of the following processes would not occur?

    • Options
    • A. Cellular respiration
    • B. Photosynthesis
    • C. Mitosis
    • D. Cell wall synthesis
    • Discuss
    • 2. The amount of ATP that can be obtained by complete oxidation of a glucose by a bacterium is

    • Options
    • A. greater than by a yeast cell
    • B. lesser than by a yeast cell
    • C. exactly or approximately equal to by a yeast cell
    • D. none of these
    • Discuss
    • 3. Which of the following is accomplished in chemiosmosis?

    • Options
    • A. The oxidation of ATP
    • B. The oxidation of water
    • C. The oxidation of NADH
    • D. The oxidation of CO2
    • Discuss
    • 4. Aerobic respiration differs from anaerobic respiration in which of the following respects?

    • Options
    • A. Anaerobic respiration is glycolysis
    • B. Aerobic respiration requires the electron transport chain
    • C. The final electron acceptors are different
    • D. Aerobic respiration produces less ATP
    • Discuss
    • 5. Which of the following is the most complete definition of fermentation?

    • Options
    • A. Oxidation of glucose with organic molecules serving as electron acceptors
    • B. Complete catabolism of glucose to CO2 and HO2
    • C. Production of energy by substrate-level phosphorylation
    • D. Production of ethyl alcohol from glucose
    • Discuss
    • 6. The amount of energy (cal/mole) in an ATP molecule produced by a cell from glucose by fermentation is

    • Options
    • A. greater than aerobic metabolism
    • B. less than aerobic metabolism
    • C. exactly or approximately equal to aerobic metabolism
    • D. none of the above
    • Discuss
    • 7. Fatty acids are oxidized to acetyl-CoA by which of the following pathways?

    • Options
    • A. ?-oxidation
    • B. Entner-Doudoroff
    • C. pentose phosphate pathway
    • D. Embden-Meyerhof pathway
    • Discuss
    • 8. Guanine always binds to

    • Options
    • A. cytosine
    • B. guanine
    • C. thymine
    • D. none of these
    • Discuss
    • 9. According to base pairing rules the bases of one strand match-up with the bases of the second strand of DNA and the two strands are said to be

    • Options
    • A. complementary
    • B. oppositely charged
    • C. identical
    • D. none of these
    • Discuss
    • 10. Stem and loop structures are

    • Options
    • A. proteins that help partially denatured enzymes to recover their native configuration
    • B. structures in DNA caused by inverted repeats
    • C. structures at the ends of linear eukaryotic DNA molecules
    • D. the bonds between adjacent DNA nucleotides in the same strand
    • Discuss


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