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JEE Main · 2023 · 08 Apr 2023 · Shift 2 · Chemistry in Everyday Life

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The statement/s which are true about antagonists from the following is/are :-
A. They bind to the receptor site.
B. Get transferred inside the cell for their action.
C. Inhibit the natural communication of the body.
D. Mimic the natural messenger.

Choose the correct answer from the options given below :-
  1. (A)B only
  2. (B)A, C and D
  3. (C)A and B
  4. (D)A and C✓ Correct

Answer: (D)

Solution

An antagonist binds at the receptor site, so the first statement is true. By occupying the receptor it blocks the natural chemical messenger and interferes with the normal communication of the body, so the third statement is true. An antagonist does not need to pass into the cell, since it acts at the receptor surface, so the second statement is false, and it does not reproduce the action of the natural messenger, which is the role of an agonist, so the fourth statement is false. The correct statements are the first and the third.

JEE Main · 2023 · 08 Apr 2023 · Shift 2 · Single correct option

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