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

Mode of action of enzymes — practice question

The diagram illustrates naturally occurring D-glucose and a glucose form that may be made in a laboratory, called L-glucose. The enzyme glucose oxidase catalyses the oxidation of D-glucose. The enzyme is unable to catalyse the oxidation of L-glucose. Which statement about L-glucose accounts for this?

  • AL-glucose does not fit into the active site of glucose oxidase.
  • BL-glucose has a different structural formula to D-glucose.
  • CL-glucose is a synthetic sugar.
  • DL-glucose is the mirror image of D-glucose.

Worked solution & mark scheme

This 1-mark question has a full step-by-step worked solution and mark scheme.

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI