SCIENCE
CIRCULATORY SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What causes the blood to be the distinct red colour?
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Haemoglobin
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Glucose
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Hormones
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Oxygen
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Explanation:
Detailed explanation-1: -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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