22. Why is the colour of the blood red?
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Answer:
because in red blood red pigment is present.
so, the colour of the blood red
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Explanation:
Blood is red because of protein hemoglobin, which contains red coloured compound called heme that's crucial for carrying oxygen through your blood stream.
Hemoglobin bounds to oxygen absorbs blue, green light, which means that it reflects red-orange light into our eyes, appearing red.
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