HUMAN NUTRITION

Detailed explanation-1: -In order to bind oxygen, each protein chain binds to one heme group, allowing a maximum of four oxygen molecules to bind per one hemoglobin molecule. At heme’s center sits an iron molecule. The iron makes heme look red-brown.

Detailed explanation-2: -Your body needs iron and other nutrients to make hemoglobin and healthy red blood cells. So it’s important to get a regular supply of iron as well as vitamin B12, folate, and protein. You can get these nutrients by eating a balanced diet or taking dietary supplements.