Question

Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : Basal Metabolic Rate is higher in male.
Reason (R) : It is due to larger body surface area of male bodies.
In the light of the above statements, choose the most appropriate answer from the options given below:

• A. Both (A) and (R) are true and (R) is the correct explanation of (A)
• B. Both (A) and (R) are true but (R) is NOT the correct explanation of (A)
• C. (A) is correct but (R) is not correct
• D. (A) is not correct but (R) is correct

Hint:

More surface area = more heat loss = higher BMR. Males have both higher muscle mass and larger surface area.

Answer 1

The Correct Option is A

Assertion (A) is true because Basal Metabolic Rate (BMR) is generally higher in males than in females.
This is due to higher muscle mass, lower fat percentage, and larger body surface area in males.
Reason (R) is also true because a larger surface area increases heat loss, requiring more metabolic activity to maintain body temperature.
Therefore, the larger body surface area is indeed one of the main reasons why males have a higher BMR.
So, both statements are true and the reason correctly explains the assertion.