Same chapter3 marksDifficulty: Medium
Explain why a person of blood group O is called a universal donor.
Circulatory System
3 marksDifficulty: Medium
Name the components of blood and state one function of each.
Original Khojo Papers practice question — not from a past board paper.
Answer
Plasma transports dissolved food, salts, hormones and wastes. Red blood cells carry oxygen by means of haemoglobin. White blood cells defend the body against disease. Platelets bring about the clotting of blood at a wound.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
Plasma makes up about 55% of the volume of blood.
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