Question

why is our blood is red in colour​

Answer 1

It is because of presence of haemoglobin in blood.

Answer 2

Answer -

• Because 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.

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