Advertisements
Advertisements
Question
Assertion (A): Human red blood cells are circular and biconcave.
Reason (R): This shape prevents the easy passage of these cells through blood capillaries.
Options
A is True and R is False.
A is False and R is True.
Both A and R are True.
Both A and R are False.
MCQ
Assertion and Reasoning
Advertisements
Solution
Both A and R are True.
Explanation:
A is correct. Red blood cells are round and biconcave. This shape improves both flexibility and gas-exchange efficiency. R is false. The biconcave shape maximises surface area for gas exchange, rather than facilitating passage through capillaries.
shaalaa.com
Is there an error in this question or solution?
