First slide

Enzymes

Question

What happens to $K_{m}$ in presence of competitive inhibitor?

Moderate

A

First increases then decreases
B

Decreases
C

Increases
D

Remains unaltered

Solution

A competitive inhibitor increases $K_{m}$ for a given substrate. This means that in the presence of competitive inhibitor more substrate is required to achieve ½ $V_{\max}$ .

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