NEETBotanyBiomolecules (B)
Read the following Assertion and Reason and choose the correct option. Assertion: A number of enzymes require metal ions for their activity which form coordination bonds with side chains at the active site and at the same time form one or more coordination bonds with the substrate. Reason: Iron is a cofactor for the proteolytic enzyme carboxypeptidase.
Options
- ABoth Assertion and Reason are true and Reason is correct explanation of Assertion
- BBoth Assertion and Reason are true but the Reason is not the correct explanation of Assertion
- CAssertion is true but the Reason is false
- DBoth Assertion and Reason are false
Correct answer
C. Assertion is true but the Reason is false
Step-by-step solution
A number of enzymes require metal ions for their activity which form coordination bonds with side chains at the active site and at the same time form one or more coordination bonds with the substrate. For example, zinc is a cofactor for the proteolytic enzyme carboxypeptidase.