NEET UG BIOLOGY MCQ: BREATHING AND EXCHANGE OF GASES

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Analyzing +4 | -1

Assertion: Major part of

{CO}_2

is transported as bicarbonate ions formed in RBCs.

Reason: An enzyme carbonic anhydrase present only in RBCs catalyses the reaction.

View answer and explanation

Correct option: C

Assertion is true but Reason is false

Option B (Both Assertion and Reason are true and Reason is not the correct explanation of Assertion) is correct because the assertion about

CO_2

transport as bicarbonate is correct, and the reason about carbonic anhydrase being present in RBCs is also correct, but the enzyme is also present in other tissues in smaller amounts and the reason doesn't fully explain the assertion.

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