A certain compound occupied a site Y of an enzyme near to the active site. This immediately resulted in the change of shape of the active site. Y is called a/an ______

inactive site

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binding site

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competitive site

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allosteric site

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Solution

The correct option is D allosteric site
When a drug binds to an enzyme from a site other than the active site, it is called an allosteric site. Binding to this site causes the change in shape of active site such that the substrate cannot recognise it.

Suggest Corrections

Column I	Column II
(A) Active site	(p) inactivates an enzyme by changing the enzymes's shape
(B) Alosteric inhibitor	(q) inactivates an enzyme by denaturing it
(C) Competitive inhibitor	(r) inactivates an enzyme by occupying its active site
(D) Substrate	(s) holds the substrate during the reaction
(E) Irreversible inhibitor	(t) molecules acted upon by an enzyme