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Assertion : Smoking makes oxgyen less av...

Assertion : Smoking makes oxgyen less available to the body
Reason : In presence `CO,O_2` binds less with haemoglobin.

A

If both Assertion & Reason as true & the Reason is a correct explanation of the assertion.

B

If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion.

C

If Assertion is True but the Reason is False.

D

If both Assertion & Reason are false.

Text Solution

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The correct Answer is:
A
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In the following question a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as : Assertion (A): Smoking increases the carbon monoxide (CO) content in the blood which has greater affinity to haemoglobin than oxygen. Reason (R) CO forms a stable bond with haemoglobin and does not allow binding of oxygen. It reduces concentration of haem bound oxygen and causes oxygen deficiency in the body.

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