The Michaelis–Menten constant, ${K_m}$, is a measure of the affinity of an enzyme for its substrate.
1 The higher the affinity, the lower the ${K_m}$.
2 The lower the affinity, the slower the reaction will be.
3 At ${K_m}$, half the active sites of the enzyme are occupied by the substrate.
Which statements about ${K_m}$ are correct?
1, 2 and 3
2 )
1 and 2 only
3 )
1 and 3 only
4 )
2 and 3 only
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