BIOMOLECULES AND ENZYMES

Detailed explanation-1: -Iron is an essential element for blood production. 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-2: -Vitamins are also needed to build healthy red blood cells. These include vitamins B-2, B-12, and B-3, found in foods, such as eggs, whole grains, and bananas. Folate also helps. It is found in fortified cereals, dried beans and lentils, orange juice, and green leafy vegetables.

Detailed explanation-3: -Red blood cells contain a protein called hemoglobin, which carries oxygen from the lungs to all parts of the body.

Detailed explanation-4: -When we breathe in, the millions of air sacs in the lungs fill with fresh oxygenated air. The oxygen then moves into the blood by passing first through the very thin walls of the air sacs and then into the capillaries, which are tiny blood vessels in a network within the lungs.