Oxygen is transported to every cell of the body through
A
RBC
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B
WBC
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C
RBC and WBC
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D
RBC and hormones
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Solution
The correct option is D RBC RBCs are Red Blood cells that contain a red pigment called Haemoglobin. Every Hemoglobin molecule contains 4 Heme groups to which Iron in Ferrous form is attached. Each iron molecule binds to one Oxygen molecule i.e. 2 Oxygen atoms. Since there are 4 Iron molecules, 4 molecules or 8 atoms of oxygen is carried by Haemoglobin molecule reversibly.