Question

multiple choice question

an enzyme with another molecule, such as a metal or vitamin cofactor, bound covalently to it is termed a(n) _______

conjugated enzyme
allosteric enzyme
apoenzyme
coenzyme

Explanation:

Analyze the definition of enzyme components

An enzyme consisting of a protein component (apoenzyme) combined with a non-protein helper molecule (cofactor or coenzyme) is referred to as a conjugated enzyme (or holoenzyme).

Evaluate the given options

• conjugated enzyme: An enzyme containing both a protein portion and a non-protein cofactor/coenzyme.
• allosteric enzyme: An enzyme whose activity is regulated by the binding of an effector molecule at a site other than the active site.
• apoenzyme: The purely protein part of an enzyme, which is inactive without its cofactor.
• coenzyme: A specific type of organic cofactor (like a vitamin).

Match the definition to the correct term

The prompt describes an enzyme that has another molecule (such as a metal or vitamin cofactor) bound to it. This combination of the protein portion with its non-protein cofactor is termed a conjugated enzyme.

Answer:

• conjugated enzyme (Correct answer)
• allosteric enzyme
• apoenzyme
• coenzyme