Biology 9700 · AS & A Level · Factors that affect enzyme action

Factors that affect enzyme action — practice question

In what way does the antibiotic penicillin affect the metabolism of a bacterial cell?

  • APenicillin reduces cell growth by preventing water uptake.
  • BPenicillin inhibits the formation of cross-links in the cell wall between peptidoglycan molecules.
  • CPenicillin inhibits the hydrolysis of peptidoglycan links in the cell wall during cell extension.
  • DPenicillin weakens the cell wall by digesting peptidoglycan molecules.

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