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Inhibitory effect of melonic acid on suc...

Inhibitory effect of melonic acid on succinic dehydrogenase enzyme is

A

Competitive inhibition

B

Non-competitive inhibition

C

Feedback inhibition

D

Inhibition due to the end product

Text Solution

Verified by Experts

The correct Answer is:
A
In competitive inhibition is brought about by a substance which closely resembles the substrate in molecular structure. Such a substance is called a competitive inhibitor. Ex: Malonate closely resembles succinate in structure and inhibit the action of succinate dehydrogenase.
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Assertion : The inhibition of activity of succinic dehydrogenase by malonate which closely resembles the substrate succinate in structure is the example of competitive inbhibition. Reason : Competitive inhibition is the inhibition of enzyme activity when inhibitor closely resembles the substrate, in its molecular structre.