What do you call an enzyme that is active and composed of a polypeptide chain combined with a cofactor?

Biology Mcqs for PPSC, FPSC, NTS, and Pakistan government job tests. Select an option below, then read the explanation.

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Subject
Biology Mcqsbiology-mcqs
Published
11 May 2018
Last updated
28 May 2026

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Explanation

An apoenzyme refers to the protein portion of an enzyme without its cofactor, whereas a holoenzyme is the complete, active enzyme consisting of the apoenzyme plus its cofactor. Therefore, an activated enzyme made up of a polypeptide chain and a cofactor is both a holoenzyme and an active enzyme.

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