a. Human blood is red coloured. – InterviewSolution

InterviewSolution

1.	a. Human blood is red coloured.
Answer» Blood is redbecause of the hemoglobin inside ourred bloodcells. Hemoglobin is a protein that forms a complex with iron molecules and together they transport oxygen molecules throughout the body. Iron has the property of reflectingredlight and because there is so much ironinourblood,bloodlooksred.

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