Biology 9700 · AS & A Level · Mode of action of enzymes

Mode of action of enzymes — practice question

The AIDS virus synthesises a long polypeptide, which is then hydrolysed by a protease enzyme into a number of shorter peptides. This viral protease is the target of anti-AIDS drugs. Which feature is vital for these drugs to work successfully?

  • Aa complex structure that inhibits many types of viral enzyme
  • Ba molecule containing a heavy metal atom that is a non-competitive inhibitor of enzymes
  • Ca protein that can act as a competitive inhibitor of protease enzymes
  • Da specific structure that inhibits only viral protease

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