Question

Number of haemoglobin molecules present in an average human body is
A. 6000 million million
B. 6000 million million million
C. 6 million million million
D. 600 million million million

Answer 1

Hint: Haemoglobin is a pigment that contains a protein and a non-protein part. It gives the red blood cells its characteristic red color. The haemoglobin level of a normal adult can vary according to gender, and age.

Step by step answer:Haemoglobin is a protein that contains iron and is present in the red blood cells or erythrocytes in the blood of the vertebrates. It aids in the process of oxygen transportation in the body. A reversible unstable complex is formed with oxygen. In the oxygenated state, it is known as oxyhemoglobin and has a bright red color and in the deoxygenated state, it has a blue color. Its production takes place in the bone marrow by the process of hematopoiesis. Each erythrocyte has 270 million haemoglobin molecules. The normal range of haemoglobin in an adult is 6000 million million million.
Haemoglobin is made of four heme groups that are surrounded by a globin group forming a tetrahedral structure. Heme is made up of a ring-like organic compound known as porphyrin. Iron is attached to this porphyrin ring. One molecule of haemoglobin contains four iron atoms that can bind to four oxygen molecules for their transportation. Globin is made up of two different polypeptide chains- alpha and beta.

Hence, the correct option is (B) 6000 million million million

Note: Haemoglobin plays an important role in maintaining the shape of red blood cells. Abnormal haemoglobin structure can result in different shaped red blood cells.