Holoenzyme is?
Correct answer: C. Complete enzyme
- A. Protein part of enzyme
- B. Non-protein part of enzyme
- C. Complete enzyme
- D. Inactive enzyme
Explanation
A holoenzyme is the complete, active form of an enzyme. It is composed of an apoenzyme, which is the protein portion, and one or more cofactors, which can be metal ions or organic molecules known as coenzymes. These components together allow the holoenzyme to perform its catalytic function. Option A and B are incorrect because they describe only parts of the enzyme system, not the complete active form. Option D is incorrect because it describes an inactive enzyme, which is an apoenzyme, not a holoenzyme.
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About Enzymes
Enzymes are biological catalysts that lower activation energy without being consumed, and their specificity is explained by the lock and key and induced fit models. Work includes the effects of temperature, pH and substrate concentration on reaction rate, plus competitive and non-competitive inhibition and how these differ.
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