Question

When coenzyme is combined with apoenzyme, it is called as

• A. Cofactor
• B. Holoenzyme
• C. Substrate enzyme complex
• D. Vitamin A

Answer 1

Answer: (B)

Holoenzyme

Enzymes are simple if they are made up of only proteins, e.g., pepsin, amylase etc., while conjugate enzymes have an additional non-protein cofactor, e.g., dehydrogenase enzymes. The protein part of conjugate enzyme is known as apoenzyme while the whole enzyme is called as holoenzyme.