Match the following leukocytes with the correct definition.      


____Basophil      
____B lymphocyte      
____Neutrophil      
____Monocyte       
____T lymphocyte      
____Eosinophil 


a. Destroys bacteria; directly phagocytoses bacteria
b. Responds to parasitic worm infection and mediates the allergic response
c. Activates all parts of the immune response; directly kills cancer or virally infected cells
d. Secretes inflammatory mediators
e. Agranulocyte that matures into macrophage
f. Agranulocyte that secretes antibodies

Verified step by step guidance

1. Identify the characteristics of each leukocyte type: Basophil, B lymphocyte, Neutrophil, Monocyte, T lymphocyte, and Eosinophil.
2. Match Basophil with the definition that involves secretion of inflammatory mediators.
3. Match B lymphocyte with the definition that involves secretion of antibodies.
4. Match Neutrophil with the definition that involves directly phagocytosing bacteria.
5. Match Monocyte with the definition that involves maturing into a macrophage.

Key Concepts

Leukocyte Types

Leukocytes, or white blood cells, are crucial components of the immune system, responsible for defending the body against infections and foreign invaders. There are several types of leukocytes, including neutrophils, basophils, eosinophils, monocytes, and lymphocytes (B and T cells), each with distinct functions in immune response.

Phagocytosis

Phagocytosis is a process by which certain leukocytes, such as neutrophils and monocytes, engulf and digest pathogens or debris. This mechanism is vital for the innate immune response, allowing the body to eliminate bacteria and other harmful substances effectively.

Adaptive Immunity

Adaptive immunity involves the activation of lymphocytes (B and T cells) that provide a targeted response to specific pathogens. B lymphocytes produce antibodies to neutralize invaders, while T lymphocytes can directly kill infected or cancerous cells, playing a key role in long-term immunity and memory.