Question

Why is hemoglobin important for the human body?

Answer 1

Hematology is the study of blood and blood producing organs and cells. Blood vessels which carry deoxygenated blood from other parts of the body to the heart are called veins. Hematology also determined the prevention of blood occurring diseases. Such diseases like hemophilia, blood clots and bleeding disorders and cancers arising from blood such as leukemia, myeloma, lymphoma.

Complete answer:
Blood cells are being formed inside bone marrow. As mainly blood consists of red blood cells more than white blood cells. It also contains a pigment red color which comes from an ionic gradient present in blood called Hemoglobin. Hemoglobin is a water soluble or hydrophilic compound which is present on the surface of red blood cells.
Hemoglobin counts for $70\%$ of the body’s iron which are found in red blood cells of your blood and called hemoglobin due to the presence of iron pigments in them. It is essential for transferring oxygen to tissues and blood to lungs.
Myoglobin present in muscle cells accepts and stores and releases oxygen. In light hemoglobin is a molecular and heat transducer in the oxygenation and deoxygenation cycle. Also helping in calculating the red blood cells in the body. On an average men need $135$ to $170$ and for women it should be $120 - 160$.

Note:
There are also some facts in blood as- blood constitutes ninety percent of water and ten percent of these components. Water helps blood in maintaining its fluidity, otherwise blood can clot in the body due to a high amount of different clotting factors. So, it is essential for water balance in the body in order to keep blood flow balanced.