MICROANATOMY

Detailed explanation-1: -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. The blood cells are red because of the interaction between iron and oxygen.

Detailed explanation-2: -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-3: -Blood is red because of the hemoglobin inside our red blood cells(which is present in our blood). Hemoglobin is a protein that forms a complex with iron molecules and together they transport oxygen molecules throughout the body.

Detailed explanation-4: -About 70 percent of your body’s iron is found in the red blood cells of your blood called hemoglobin and in muscle cells called myoglobin. Hemoglobin is essential for transferring oxygen in your blood from the lungs to the tissues.

Detailed explanation-5: -A common misconception is that the red color of blood is due to hemoglobin iron. The source of this myth likely originates from the fact that iron oxides (rust) have a reddish hue. In reality the reddish color of hemoglobin derives from the porphyrin ring to which the iron is bound, not the iron itself.