Question

why is blood red in colour​

Answer 1

Answer:

it is due to the iron content in the blood. ... Each hemoglobin protein is made up subunits called hemes, which are what give blood its red color. More specifically, the hemes can bind iron molecules, and these iron molecules bind oxygen. The blood cells are red because of the interaction between iron and oxygen.

Answer 2

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Ello!!

Blood is a fluid connective tissue. Mainly composed of RBC(s), WBC(s), platelets and plasma.

Since, it contains Red blood cells that contain red pigment of haemoglobin in maximum amount , therefore it appears red in colour.

hope it helps:)