Question

Human blood is red in colour?
Those who answer first will be the branlist ​

Answer 1

Answer:

Human blood is red because hemoglobin, which is carried in the blood and functions to transport oxygen, is iron-rich and red in color. Octopuses and horseshoe crabs have blue blood. This is because the protein transporting oxygen in their blood, hemocyanin, is actually blue.

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Answer 2

Answer:

Answer

Human blood contains red blood cells which are the most abundant human blood cells. RBCs are devoid of any cell organelles and have a red coloured iron-containing complex protein called haemoglobin which is responsible for the red colour of human blood.