NEET PG DENTAL EXAM

Detailed explanation-1: -Human blood is red because hemoglobin, which is carried in the blood and functions to transport oxygen, is iron-rich and red in color.

Detailed explanation-2: -Red cells contain a special protein called hemoglobin, which helps carry oxygen from the lungs to the rest of the body and then returns carbon dioxide from the body to the lungs so it can be exhaled. Blood appears red because of the large number of red blood cells, which get their color from the hemoglobin.