Question

Which of the following is not a component of blood?
A. WBC
B. RBC
C. Platelets
D. Hepatocytes

Answer 1

Hint: Blood is a fluid that flows throughout the body in blood vessels and it is very much essential for life. Blood carries oxygen and nutrients to different organs and tissues. It helps to fight with various types of infections and blood consists of different components such as RBC, WBC, plasma etc.

Complete answer:
To answer this question you must know about the components of blood.
The blood consists of different components. These components include red blood cells, white blood cells, platelets and plasma.
Red blood cells (RBC) contain a protein called hemoglobin which allows oxygen to be picked up from the lungs. To make hemoglobin iron is needed.
White blood cells (WBCs) are the parts of the immune system which fight with various types of infection and diseases. There are different types of WBCs such as neutrophils, lymphocytes, monocytes, eosinophils and basophils.
Platelets are cells that help for clotting when we have a cut or bruise, platelets come together to form a clot. This helps to control bleeding at the time of injuries so our body doesn’t lose too much blood.

Hepatocytes are the cells of the liver that have a number of metabolic functions. To facilitate the exchange of a wide variety of substances between the blood and hepatocytes, the hepatocytes are directly passing through the organ, by being in close contact with the liver blood sinusoids.
As WBCs, RBCs and platelets are components of blood therefore the correct option of the given question is (D) hepatocytes which are not a component of blood.
So, the correct answer is “Option D”.

Note:
Blood cells are made in the bone marrow. The bone marrow is the soft, spongy parts inside the bones. New blood cells are formed on a daily basis and they help to replace the cells that die naturally or through injury or illness.