Statement I: Low temperature preserves the enzyme in a temporarily inactive state whereas high temperature destroys enzymatic activity

Question

Given below are two statements:

Statement I: Low temperature preserves the enzyme in a temporarily inactive state whereas high temperature destroys enzymatic activity because proteins are denatured by heat.

Statement II: When the inhibitor closely resembles the substrate in its molecular structure and inhibits the activity of the enzyme, it is known as competitive inhibitor.

In the light of the above statements, choose the correct answer from the options given below:

(1) Both Statement I and Statement II are false.

(2) Statement I is true but Statement II is false.

(3) Statement I is false but Statement II is true.

(4) Both Statement I and Statement II are true.

Answer 1

(4) Both Statement I and Statement II are true.

Low temperature - temporary inactive enzyme activity

High temperature - enzyme denaturation because enzymes are proteins.

Competitive inhibition - Inhibitor resemble to substrate, inhibitor inhibit enzyme activity

Enzyme have common binding site for substrate and inhibitor.