The diagram shows naturally occurring D-glucose and a form of glucose that can be synthesised
in the laboratory, known as L-glucose.
The enzyme glucose oxidase catalyses the oxidation of D-glucose. The enzyme cannot catalyse
the oxidation of L-glucose.
Which statement about L-glucose explains this?
L-glucose does not fit into the active site of glucose oxidase.
2 )
L-glucose has a different structural formula to D-glucose.
3 )
L-glucose is a synthetic sugar.
4 )
L-glucose is the mirror image of D-glucose.
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