What would be the consequences of the deficiency of haemoglobin in the human body?

Hint: The respiratory pigment that delivers oxygen to the cells of the body for cellular respiration is haemoglobin. Haemoglobin deficiency causes anaemia.

Complete Answer:
- In red blood cells, haemoglobin is a protein molecule that transports oxygen from the lungs to the tissues of the body and brings carbon dioxide back to the lungs from the tissues.
- Four protein molecules i.e., globulin chains that are bound together make up haemoglobin. An essential iron-containing porphyrin compound called heme is found in each globulin chain.
- Usually responsible for the red colour of the blood is the iron found in haemoglobin. In order to preserve the structure of red blood cells, haemoglobin plays an essential function.
- Hemoglobin deficiency might cause anaemia, since it is the haemoglobin found in the red blood cells that brings oxygen to the body's cells.
- A reduction in the amount may result in a decline in the ability of the blood to carry oxygen. This may lead the person to breathlessness and exhaustion.
- There are anaemia signs. The average blood haemoglobin concentration is 14.5 gm per 100 mL.

Note: Some of the more prevalent causes of haemoglobin deficiency are blood loss, nutrient deficiency, problems in bone marrow, kidney failure, red blood cell synthesis is suppressed by chemotherapeutic drugs and abnormal haemoglobin structure.