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What mainly transports oxygen in blood?

Answer and explanation

Correct answer: Haemoglobin

The governing concept is transport by blood. Haemoglobin, the iron-containing pigment in red blood cells, combines reversibly with oxygen in the lungs to form oxyhaemoglobin. It then releases oxygen in body tissues where it is needed. Plasma carries a small amount of dissolved oxygen, but it is not the main carrier; bile and saliva have digestive roles. Therefore option A is correct.

Related tags

HaemoglobinOxygen-TransportBloodRespirationLife ProcessesWorld Of LivingScienceClass 10 Mcq

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