The most active phagocytic white blood cells are:

Options

(a) Neutrophils and eosinophils
(b) lymphocytes and macrophages
(c) eosinophils and lymphocytes
(d) neutrophils and monocytes

Correct Answer:

neutrophils and monocytes

Explanation:

The most active phagocytic white blood cells are neutrophils and monocytes. Neutrophil is a type of WBC (leucocyte) that has a lobed nucleus and granular cytoplasm. Neutrophils engulf bacteria and release various substance such as lysozome and oxidizing agents. Monocyte is the largest form of WBC in vertebrates. It has a kidney shaped nudleus and is actively phagocytic, ingesting bacteria and cell debris.