Question

White blood cells (WBC) have major function as-

• A. Defensive role
• B. Respiration
• C. Tumor suppressor
• D. Phagocytosis of cell debris

Answer 1

The correct option is A

Defensive role

White blood cells (WBCs), also called leukocytes or leucocytes, are the cells of the immune system that are involved in protecting (Defensive role) the body against both infectious disease and foreign invaders. All leukocytes are produced and derived from a multipotent cell in the bone marrow known as a hematopoietic stem cell. Leukocytes are found throughout the body, including the blood and lymphatic system.