An activated enzyme consisting of polypeptide cofactor is known as:
Correct answer: C. Holoenzyme
- A. Amylase
- B. Apoenzyme
- C. Holoenzyme
- D. Coenzyme
Explanation
If the non-protein part is loosely attached to the protein part of the enzyme, it is known as coenzyme. An enzyme with its coenzyme, or prosthetic group, removed is designated as apoenzyme. An activated enzyme consisting of a polypeptide chain and a cofactor is known as holoenzyme. Amylase is a starch digesting enzyme.
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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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