Assertion: Receptor proteins show selectivity for one chemical messenger over the other.

Reason: Chemical messenger binds to the receptor site and inhibits its natural function.

Both assertion and reason are wrong statements

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Assertion is correct statement reason is wrong statement

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Assertion and reason both are correct statements, but reason does not explain assertion

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Assertion is wrong statement reason is correct statement

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Assertion and reason both are correct, and reason explains the assertion

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Solution

The correct option is B Assertion is correct statement reason is wrong statement
Assertion

Receptors which are basically proteins show selectivity for a certain chemical messenger due to the variety of shapes, structures and even their amino acid compositions. So different receptors interact with different types of chemical messengers.

So, assertion is correct.

Reason

Chemical messengers process communication between cells only and do not pay any contribution to inhibition of any natural functions of the receptors.
So, reason is wrong statement.

Hence, assertion is correct statement reason is wrong statement.

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Similar questions

Assertion and Reason
In the following questions a statement of assertion (A) followed by a statement reason (R) is given. Choose the correct answer out of the following choice..
(a) Assertion and reason both are correct statements but reason does not explain assertion.
(b) Assertion and reason both are correct and reason explains asssWon.
(c) Both assertion and reason are Wrong statements.
(d) Assertion is correct statement reason is wrong statement.
(e) Assertion is wrong statement reason is correct statement.

Assertion (A) Receptor proteins show selectivity for one chemical messenger over the other.
Reason (R) Chemical messenger binds to the receptor site and inhibits its natural function.

WhiCh of the following statements are incorrect about receptor proteins?
(a) Majority of receptor proteins are embedded in the cell membranes
(b) The active site of receptor proteins opens on the inside region of the cell
(c) Chemical messengers are received at the binding sites of receptor proteins
(d) Shape of receptor doesn't change during attachment of messenger

Assertion (A) Chemicat messenger gives message to the cell without entering the cell.
Reason (R) Chemical messenger is received at the binding site of receptor proteins.

Q. Assertion : Receptor proteins show selectivity for one chemical messenger over the other
Reason : Chemical messenger binds to the receptor site and inhibits is natural function

Q. Assertion :Chemical messengers are received at the binding sites of receptor proteins. Reason: Chemical messengers gives messages to the cell without entering the cell.

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The Adrenal Gland

Standard X Biology

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Assertion: Receptor proteins show selectivity for one chemical messenger over the other. Reason: Chemical messenger binds to the receptor site and inhibits its natural function.

Assertion: Receptor proteins show selectivity for one chemical messenger over the other.

Reason: Chemical messenger binds to the receptor site and inhibits its natural function.