Microbial Metabolism

10 Questions
Metabolism Quizzes & Trivia

The Quiz is a part of the class today on Microbial Metabolism.

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Questions and Answers
  • 1. 
    The process of converting chemical energy of glucose into the chemical bonds of ATP is called?
    • A. 

      Glycolysis

    • B. 

      Conversion

    • C. 

      Cellular respiration

    • D. 

      Energy

  • 2. 
    With respect to the element carbon, respiration is a(n) _________ reaction.
    • A. 

      Dehydration synthesis.

    • B. 

      Digestion.

    • C. 

      Oxidation.

    • D. 

      Reduction.

  • 3. 
    The role of oxygen in aerobic respiration is
  • 4. 
    Respiration is important because
    • A. 

      Its waste heat helps to warm the environment.

    • B. 

      It conserves energy.

    • C. 

      Enzymes require it.

    • D. 

      It recycles energy.

  • 5. 
    When glucose is broken down to carbon dioxide and water during aerobic respiration, more than 60% of its energy is released as
    • A. 

      Oxygen

    • B. 

      Carbon dioxide

    • C. 

      Heat

    • D. 

      ATP

  • 6. 
    • A. 

      CO2 + H2O → C6H12O6 + O2 + ATP + Heat

    • B. 

      C6H12O6 + O2 → CO2 + H2O + ATP + Heat

    • C. 

      CO2 + H2O → C6H12O6 + O2

    • D. 

      C6H12O6 + CO2 + Ethyl alcohol + ATP + Heat

  • 7. 
    The oxygen released into the air as a product of photosynthesis comes from
    • A. 

      Chlorophyll

    • B. 

      Carbon dioxide

    • C. 

      Water

    • D. 

      None of the choices are correct

  • 8. 
    Why are (most)  plants green?
    • A. 

      Chlorophyll a reflects green light.

    • B. 

      Chlorophyll b primarily uses green light as the source of energy for photosynthesis.

    • C. 

      Green helps plants blend into their environment as a sort of camouflage.

    • D. 

      Chlorophyll a absorbs green light.

  • 9. 
    Nitrogen fixation involves the enzyme __________ catalyzing the reaction:N2 + 10 ____ + ___ e-  --->  2 NH4 + H2
    • A. 

      Nitrate reductase; H2O; 6

    • B. 

      Nitrogenase; H+; 8

    • C. 

      Nitrogenase; H+; 2

    • D. 

      Nitrogen reductase; H2O; 6

  • 10. 
    Nitrogenase complex → complex enzyme with multiple redox centers that carries out nitrogen fixation (reductase - provides electrons with high reducing power / nitrogenase - uses these electrons to reduce N2 to NH3)
    • A. 

      True

    • B. 

      False