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Question

Which of the following is responsible for the red colour of Blood?

A
Chlorophyll
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B
Anthocyanin
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C
Hemoglobin
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D
Hematin
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Solution

The correct option is C Hemoglobin
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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