Question

explain with reason. human blood is red colour red

Answer 1

Blood is red because it is made up of cells that are red, which are called red blood cells. ... 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.

Answer 2

human blood is red colour because

there are two types blood cells

1)white blood cells
2)red blood cells

red blood cells contain hemaglobin
so the red blood cells are red in colour
white blood cells doesn't contain any hemaglobin

so because of red blood cells our blood is red in colour