Question

What make the blood look red?​

Answer 1

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Human blood is red because of the protein hemoglobin, which contains a red-colored compound called heme that's crucial for carrying oxygen through your bloodstream. ... That's why blood turns bright cherry red when oxygen binds to its iron. Without oxygen connected, blood is a darker red color.

Answer 2

Answer:

Red blood(RBCs) contain a red pigment called haemoglobin.The presence of haemoglobin make blood appear red.This pigment also help in carrying oxygen to various part of the body.