Microbiology Unit 2 Test 1

21 Questions | Total Attempts: 131

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Microbiology Quizzes & Trivia

Enzymes


Questions and Answers
  • 1. 
    What is the energy of activation? 
  • 2. 
    _____________ is the total of all _______ reactions and ________ workings occurring in a cell. 
  • 3. 
    Two types of chemical reactions?
    • A. 

      Anabolism

    • B. 

      Fermentation

    • C. 

      Catabolism

  • 4. 
    Biosynthesis, building complex molecules from simple ones. Requires ATP.
  • 5. 
    Catabolism is __________ breaking down complex molecules into simple ones, _____ ATP.
  • 6. 
    Enzymes are biological ________ that increase the rate of a chemical reaction by lowering the _________ of _________.
  • 7. 
    Most enzymes are composed of ______ and may require _________.
  • 8. 
    Act as ___________ catalysts to speed up the rate of _________ reactions.
  • 9. 
    Lowers _______ _________ required for chemical reaction to proceed. 
  • 10. 
    Enable _________ reactions to proceed at a speed compatible with life.
  • 11. 
    Have unique ___________. 
  • 12. 
    Provide an active site for target molecules called ________. 
  • 13. 
    Enzymes are ________ than substrates.
    • A. 

      Smaller

    • B. 

      Larger

  • 14. 
    Enzymes associate closely with substrates and become integrated in the reaction's products. 
    • A. 

      True

    • B. 

      False

  • 15. 
    Enzymes are not used up or permanently changed by the reaction
    • A. 

      True

    • B. 

      False

  • 16. 
    Enzymes can be __________ and therefore function in very _____ concentrations.
  • 17. 
    Enzymes are greatly effected by _______ and ____.
  • 18. 
    _____ site is the site for binding.
  • 19. 
    _______ enzymes consist of only proteins.
  • 20. 
    Example of cofactors
    • A. 

      Iron

    • B. 

      Protein

    • C. 

      Copper

    • D. 

      Magnesium

  • 21. 
    Hexokinase transfers _______ to ______.
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