Question

In the blood of an adult man, the total content of haemoglobin is roughly
A. Several hundred grams
B. Tens gram
C. Several grams
D. Several hundred milligrams

Answer 1

Hemoglobin is hem containing globular protein which possesses iron element, which is responsible for the binding of oxygen and its transportation in the red blood cells found in almost all vertebrate animals. It not only transports oxygen but also transports carbon dioxide.

Complete answer:
Haemoglobin is red coloured pigment complex, Hemoglobin is a globular protein which consists of four protein chain that named as two alpha chain and two beta chain, iron is present in the centre, In a healthy individual has 12 to 20 gram of haemoglobin in per 100 ml of blood.

Haemoglobin shows oxygen-binding capacity around 1.3ml oxygen per gram, in mammals haemoglobin can bind up to four oxygen molecules. Excess of haemoglobin in blood plasma leads to a medical condition called hemoglobinemia, which is the effect of intravascular hemolysis due to the separation of haemoglobin forms red blood cells.

The pathological mutant form of haemoglobin, which may cause certain kind of disorder such as sickle cell anaemia, in which a point mutation occurs in the gene, which brings the structural change in the RBC that reduces the oxygen-carrying capacity and sometimes they may form a clot in the blood vessel which leads to the death of the affected individual.

Haemophilia is also a genetic disorder in which an affected individual body is not able to produce a blood clotting factor if a person gets a minor cut on his body that leads to the continuous flow of blood which leads to death.

Hence, the correct answer is option (A).

Note: Anemia is a condition in which a person suffers lack of RBC which carries oxygen to the blood tissue, the common cause of anaemia is less amount of iron in the body that is a necessary element of the haemoglobin. Almost 90 percent of the iron of the dead or old RBC is recycled in the body.