Question

which type of leukocyte will enlarge in the tissues and become macrophages?
a lymphocytes
b monocytes
c eosinophils
d neutrophils

Explanation:

Monocytes are a type of leukocyte (white blood cell). When monocytes leave the bloodstream and enter tissues, they enlarge and differentiate into macrophages. Macrophages play a crucial role in the immune system by phagocytosing (engulfing and digesting) pathogens, dead cells, and cellular debris.

• Lymphocytes are involved in adaptive immunity (e.g., B - cells produce antibodies, T - cells are involved in cell - mediated immunity).
• Eosinophils are mainly involved in combating parasitic infections and are also associated with allergic reactions.
• Neutrophils are the most abundant type of white blood cell and are the first responders to acute inflammation, mainly phagocytosing bacteria.

Answer:

B. Monocytes