NEET BIOLOGY

Detailed explanation-1: -The red colour of the blood is due to the presence of iron-containing protein called haemoglobin. Haemoglobin is involved in carryong oxygen from the lungs to different parts of the body.

Detailed explanation-2: -Red blood cells get their bright red color from a protein that allows them to carry oxygen from your lungs and deliver it to other tissues in your body (hemoglobin).

Detailed explanation-3: -RBCs are red-colored, biconcave, and disc-shaped cells. The reddish color of the RBCs is due to the presence of a respiratory, iron-pigment called hemoglobin. The hemoglobin serves as an oxygen-carrying molecule.

Detailed explanation-4: -Hb is red due to the presence of the heme group, thus making the blood red-coloured. One haemoglobin molecule can bind to 4 oxygen molecules.