Home
Class 12
CHEMISTRY
(A) Enzymes have active sites that hold ...

(A) Enzymes have active sites that hold substrate molecule for a chemical reaction.
(R) Drugs compete with natural substrate by attaching to the active site of enzyme are called antagonists.

A

Both (A) and (R) are true and (R) is the correct explanation of (A)

B

Both (A) and (R) are true and (R) is not the correct explanation of (A)

C

(A) is true but (R) is false

D

Both (A) and (R) are false

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Similar Questions

Explore conceptually related problems

(A) Non-competitive inhibitors occupy allosteric site so that the substrate cannot attach at active site. (R) Non-competitive inhibitors change the shape of active site of enzyme after binding at allosteric site.

(A) Drugs that bind to the receptor site and inhibit its natural function are called antagonists (R) Drugs that mimic the natural messengers by switching on the receptor are called agonists.

Which forces are involved in holding the drug to the drug to active site of enzymes?

(A) Competitive inhibitors compete with natural substrate for their attachment on the active sites of enzymes. (R) In competitive inhibition, inhibitor binds to the allosteric site of the enzyme.

Inhibitors which bind to enzyme molecule but not at the active site are

If the attaching reagent adds on to the substrate molecule without elimination, it is called addition reaction

(A) Enzymes are needed in large quantities for the progress of a reaction. (R) Enzymes increases the magnitude of activation energy.

(A) Enzymes are globular proteins. (R) Enzymes provide active site to substrate.

A: All collision lead to chemical reaction R: Activated molecules bring about effective collisions