Question

The protein portion of an enzyme is called ______.

Options

• Cofactor

• Coenzyme

• Apoenzyme

• Prosthetic group

Answer 1

The protein portion of an enzyme is called an apoenzyme.

Explanation:

An enzyme may consist of two components: The protein component of an enzyme is called an apoenzyme. A cofactor is a non-protein element, such as an organic molecule or a metal ion. The holoenzyme, or active form, is created when the apoenzyme and cofactor come together.