The protein part of a conjugated enzyme, which on its own is catalytically inactive, is called the
Correct answer: B. apoenzyme
- A. prosthetic group
- B. apoenzyme
- C. holoenzyme
- D. co-substrate
Explanation
The apoenzyme needs its non-protein partner, the cofactor, to become the active holoenzyme. Calling the whole active complex the apoenzyme is a common slip, so remember that holoenzyme equals apoenzyme plus cofactor.
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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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