If the cofactor is covalently or tightly and permanently bonded to enzyme then it will be called:
Correct answer: B. Prosthetic group
- A. Coenzyme
- B. Prosthetic group
- C. Activator
- D. Apoenzyme
Explanation
The detachable cofactor is known as an activator if it is an inorganic ion. If the non-protein part is covalently bonded, it is known as a prosthetic group, If it is loosely attached to the protein part, it is known as coenzyme. An enzyme with its cofactor removed is called apoenzyme.
This question appeared on the UHS MDCAT 2013 paper, which you can sit online with every answer explained.
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About Characteristics of Enzymes
Enzymes are globular biological catalysts that lower activation energy without being consumed, usually showing specificity for particular substrates. Questions cover active sites, enzyme substrate complexes, the lock and key and induced fit models, intracellular and extracellular action, and the effects of denaturation, while distinguishing enzymes from non biological catalysts.
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