Question

Which of the following is an allosteric enzyme?

• A. Hexokinase
• B. Phosphofructokinase
• C. Succinic dehydrogenase
• D. Cytochrome oxidase

Answer 1

The correct option is A Hexokinase

An allosteric enzyme is the one that changes its conformational ensemble upon binding of an effector, which results in an apparent change in the binding affinity at a different ligand binding site. Hexokinase is an example of such enzymes. It undergoes an induced-fit conformational change when it binds to glucose, which ultimately prevents the hydrolysis of ATP.

So, the correct answer is 'Hexokinase'.