11 Biology - Macromolecules, Enzymes And Photosynthesis

18 Questions | Total Attempts: 197

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Enzyme Quizzes & Trivia

Quiz on macromolecules, enzymes and photosynthesis


Questions and Answers
  • 1. 
    The four main macromolecules are ___________, _____________, ___________ and ___________
  • 2. 
    How many different types of amino acids make up proteins?
    • A. 

      34

    • B. 

      20

    • C. 

      16

    • D. 

      55

  • 3. 
    Carbohydrates are composed of:
    • A. 

      Monosaccharides

    • B. 

      Polysaccharides

    • C. 

      Disaccharides

  • 4. 
    The molecule of DNA consists of two strands coiled together to form a ________ ________
  • 5. 
    Each nucleotide is made up of ____ chemical groups
  • 6. 
    The substances that enzymes bind to are called ___________.
  • 7. 
    Enzymes......
    • A. 

      Speed up reactions

    • B. 

      Are not used up in the reaction

    • C. 

      Eventually become 'worn-out' and must be replaced

    • D. 

      All of the above

  • 8. 
    Each enzyme catalyses only one type of reaction.
    • A. 

      True

    • B. 

      False

  • 9. 
    A ___________ is a substance that speeds up a chemical reaction without being used up in the reaction itself.
  • 10. 
    What is the name given to the amount of energy needed to start a reaction?
  • 11. 
    The rate of an enzyme-controlled reaction increases when the temperature's raised. But, if the temperature increases beyond a certain point, the reaction stops. At this point, the enzyme is __________.
  • 12. 
    3 factors that will affect the rate of enzyme activity.
    • A. 

      temperature

    • B. 

      Enzyme concentration

    • C. 

      Size

    • D. 

      Shape

    • E. 

      pH

  • 13. 
    A chemical process that captures light energy and stores it as potential chemical energy. This is the definiton of which term below
    • A. 

      Cellular respiration

    • B. 

      Respiration

    • C. 

      Photosynthesis

  • 14. 
    The ultimate source of energy for most autotrophs and heterotrophs is ________ ________
  • 15. 
    What is the role of chlorophyll is photosynthesis
  • 16. 
    The main source of energy for life on Earth is sunlight.
    • A. 

      True

    • B. 

      False

  • 17. 
    The word equation for photosynthesis:                                                  LIGHT_______ _______ + ______      -------------->      ________ + oxygen                                             CHLOROPHYLL
  • 18. 
    The chemical equation for respiration: _______ + _____   -------------->  _____ + 6H2O + energy (ATP)                                  
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