Question

Differentiate between cellular immune response and humoral immune response.

Answer 1

Sr. No.	Aspect	Cellular immune response	Humoral immune response
1.	Main cells	This response is primarily mediated by T-lymphocytes (T-cells).	This response is primarily mediated by B-lymphocytes (B-cells).
2.	Site of action	It acts against pathogens that are inside the body cells (Intracellular).	It acts against pathogens present in body fluids like blood and lymph (Extracellular).
3.	Mechanism	T-cells directly attack and destroy infected or cancerous cells.	B-cells produce antibodies that circulate and neutralize antigens.
4.	Primary goal	Its main goal is to destroy virus-infected cells and tumor cells.	Its main goal is to neutralize bacteria, toxins, and viruses outside the cells.
5.	Key example	It is responsible for the rejection of transplanted organs (Graft rejection).	It is the primary response triggered by most vaccinations.