AP BIOLOGY

BIOCHEMISTRY

ENZYMES AND METABOLISM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In non-competitive inhibition, the inhibitor fits into the enzyme’s
A
allosteric site.
B
active site.
Explanation: 

Detailed explanation-1: -In noncompetitive inhibition, the inhibitor binds at an allosteric site separate from the active site of substrate binding. Thus in noncompetitive inhibition, the inhibitor can bind its target enzyme regardless of the presence of a bound substrate.

Detailed explanation-2: -Noncompetitive inhibition, a type of allosteric regulation, is a specific type of enzyme inhibition characterized by an inhibitor binding to an allosteric site resulting in decreased efficacy of the enzyme. An allosteric site is simply a site that differs from the active site-where the substrate binds.

Detailed explanation-3: -This type of inhibition decreases the turnover rate of an enzyme rather than interfering with the amount of substrate binding to the enzyme. The reaction is slowed rather than stopped. Non-competitive inhibition, therefore, cannot be increased by increasing the substrate.

There is 1 question to complete.