RE-NEET 2024 Zoology Gas Transport Assertion Reason Question
Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: During the transportation of gases, about 20-25 percent of CO₂ is carried by Haemoglobin as carbamino-haemoglobin.
Reason R: This binding is related to high pCO₂ and low pO₂ in tissues.
In the light of the above statements, choose the correct answer from the options given below.
A is true but R is false.
A is false but R is true.
Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is NOT the correct explanation of A.
Correct Answer
Detailed Explanation
The formation of carbamino-haemoglobin occurs when CO₂ binds to haemoglobin. This process is facilitated by high partial pressure of CO₂ (pCO₂) and low partial pressure of O₂ (pO₂) in tissues, making R the correct explanation for A.
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