Quiz 1

14 Questions  I  By Ronitarajan
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Science Quizzes & Trivia

  
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  • 1. 
    Assume that a eukaryotic cell has abundant glucose and O2 but needs ATP. The proton gradient in mitochondria of this cell will be generated by __________ and used primarily for _________ .
    • A. 

      Fermentation; NADH synthesis

    • B. 

      Glycolysis; production of water

    • C. 

      Electron transport chain; production of water

    • D. 

      Electron transport chain; ATP synthesis


  • 2. 
    Which process in eukaryotic cells will normally proceed whether O2 is present or absent?
    • A. 

      Krebs cycle

    • B. 

      Fermentation

    • C. 

      Glycolysis

    • D. 

      Oxidative phosphorylation


  • 3. 
    The Krebs cycle...
    • A. 

      Uses oxygen

    • B. 

      Uses ATP and NADH

    • C. 

      Produces carbon dioxide

    • D. 

      Occurs in the cytosol


  • 4. 
    The electron acceptor for glycolysis is.........
    • A. 

      NAD+

    • B. 

      Carbon dioxide

    • C. 

      Water

    • D. 

      FAD


  • 5. 
    During which phase of cellular respiration is ATP not produced directly by substrate level phosphorylation?
    • A. 

      Krebs cycle

    • B. 

      Glycolysis

    • C. 

      All produce ATP by substrate level phosphorylation

    • D. 

      Electron transport chain


  • 6. 
    Oxygen is not required during glycolysis.
    • A. 

      True

    • B. 

      False


  • 7. 
    Cellular respiration consists of three interrelated metabolic processes. The first process to occur is called _____1_______.

  • 8. 
    Glycolysis takes place in the _______.(where in thecell?)

  • 9. 
    During the reactions in glycolysis, glucose a six carbon sugar is broken down into two ____(number of carbons) carbon sugars.

  • 10. 
    The next set of reactions resulting in the complete breakdown of pyruvate is called the ___.

  • 11. 
    Krebs cycle occurs in the __________ .

  • 12. 
    Most of the energy removed from the carbon containing molecules during krebs cycle is in the form of _____________ molecules.

  • 13. 
     NADH molecules are transferred to the___________ located in the inner membrane of the mitochondria. 

  • 14. 
    Chemiosmosis is the use of chemical energy to pump hydrogen ions across a membrane into a compartment.
    • A. 

      True

    • B. 

      False


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