Question

Multi-lobed nucleus and granular cytoplasm are characteristics of which of the WBCs
A.Neutrophils
B.Monocytes
C.Lymphocytes
D.Eosinophils

Answer 1

Hint:WBCs or White Blood Cells are also known as leukocytes are a type of blood cell, whose prime function is in fighting against infections and providing immunity to the organism. These are different types of WBCs, such as neutrophils, eosinophils, basophils, monocytes, and lymphocytes, where each of these cells has its characteristic function. These five cells can be divided into granulocytes and granulocytes based on the presence or absence of granules respectively in the cytoplasm.

Complete answer:
Neutrophils possess granules in their cytoplasm, thus it falls under the category of granulocytes. These cells have a very small and multilobed nucleus having more than one lobe in the nucleus having a chain-like appearance. The granules present in it can be visualized as purple. The nucleus is kidney-shaped. The main function of these cells is in damage repair. The count of these cells increases during any kind of injury or infection.
Considering the other options:
Monocytes are also granulocytes that are their cytoplasm consisting of fine granules. The nucleus of these cells are big and are enfolded and lobes are absent. Thus multi-lobed nucleus is absent in monocytes. The major function of these cells is involved in mediating the inflammatory processes, taking place due to any foreign particle entering the body.
Lymphocytes are granulocytes, which means they don’t have any granules present in their cytoplasm. The cytoplasm is clear and has a smooth appearance. These cells possess a round-shaped nucleus. The main functions of these are in the production of antibodies, which are produced at the time of infections.
Eosinophils are also granulocytes, possessing granules in their cytoplasm. The nucleus of these cells possess only two lobes or they are known as bilobed. These cells are the mediators for producing allergic reactions.
Thus from the above-given options, the correct one was found to be A that is, neutrophils.

Note:The other major types of cells present in the blood are the Red Blood Cells and the Platelets or Thrombocytes. The RBCs function in the transport of gases to and from various organs and also impart the characteristic red color to blood. The platelets are involved in the clotting of blood, during any injury which causes bleeding.