Quiz  /  NEET MCQ on Allosteric Enzyme

  • 1. 
    The control and regulation of biological processes involve some enzymes They are known as

  • inhibitors
  • regulators
  • allosteric enzymes
  • activators

  • 2. 
    What are the non-substrate molecules binding to the allosteric sites called?

  • allosteric substrate
  • reactants
  • allosteric modulators
  • inhibitors

  • 3. 
    Allosteric enzymes are

  • smaller than simple enzymes
  • larger than simple enzymes
  • smaller than simple enzymes but not complex
  • larger and more complex than simple enzyme

  • 4. 
    Allosteric enzymes consist of several

  • polypeptide chains
  • inhibitors
  • temperature ranges
  • active sites

  • 5. 
    Allosteric enzymes possess

  • Three types of allosteric sites
  • Active site and three types of allosteric sites
  • Active site and two types of allosteric sites
  • Active site and an allosteric site

  • 6. 
    Enzymes that are involved in the feedback inhibition are known as

  • Apoenzymes
  • Holoenzymes
  • Allosteric enzymes
  • Coenzymes

  • 7. 
    Blocking of enzyme action by blocking its active sites is

  • feedback inhibition
  • allosteric inhibition
  • competitive inhibition
  • non-competitive inhibition

  • 8. 
    The “Lock and key” theory of enzyme action was put forward by

  • Koshland
  • Fischer
  • Kuhne
  • Arrhenius

  • 9. 
    The fastest enzyme is

  • carbonic anhydrase
  • pepsin
  • DNA polymerase
  • DNA gyrase

  • 10. 
    The allosteric enzymes on the top of active sites contain

  • substrate
  • inhibitors
  • polypeptide chains
  • allosteric site
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