NEET · Biology · STD 11 - 9. Biomolecules
The protein portion of an enzyme is called _______.
- A Cofactor
- B Coenzyme
- C Apoenzyme
- D Prosthetic group
Answer & Solution
Correct Answer
(C) Apoenzyme
Step-by-step Solution
Detailed explanation
There are number of cases in which non-protein constituents called co-factors are bound to the enzyme to make the enzyme catalytically active.
In these instances, the protein portion of the enzymes is called the apoenzyme.
Three kinds of co-factors are identified prosthetic groups, co-enzymes and metal ions. Prosthetic groups are organic compounds and they are tightly bound with apoenzyme. Co-enzymes are also organic compounds but their association with apoenzyme is only transient.
In these instances, the protein portion of the enzymes is called the apoenzyme.
Three kinds of co-factors are identified prosthetic groups, co-enzymes and metal ions. Prosthetic groups are organic compounds and they are tightly bound with apoenzyme. Co-enzymes are also organic compounds but their association with apoenzyme is only transient.
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