Free Set
Question

The primary function of red blood cells is:

Options
AImmunity
B

Give red colour to blood

C

Blood clotting

D

Oxygen transport 

 Correct Answer
Correct Answer & Explanation

Option D: Oxygen transport 

Rationale

Red blood cells contain hemoglobin, which binds oxygen in the lungs and delivers it to tissues, while also transporting carbon dioxide back to the lungs.

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