What is the primary function of white blood cells?

What is the primary function of white blood cells?

• A. Oxygen transportation
• B. Blood clotting
• C. Immune response
• D. Nutrient transport

Answer: (C)

The primary function of white blood cells is to play a crucial role in the immune response. These cells serve as the body's defense mechanism against infections and foreign invaders such as bacteria, viruses, and parasites. White blood cells, also known as leukocytes, are essential for identifying and attacking pathogens, as well as for orchestrating the overall immune response by signaling other components of the immune system. In addition to their role in defending the body against infection, white blood cells can also involve processes like inflammation and the activation of other immune cells, which contribute to both immediate and long-term protection. In contrast, the other options refer to functions that are not associated with white blood cells. Oxygen transportation is primarily the role of red blood cells, while blood clotting is predominantly managed by platelets and clotting factors. Nutrient transport is mainly conducted by plasma and red blood cells, which deliver essential nutrients throughout the body.

The primary function of white blood cells is to play a crucial role in the immune response. These cells serve as the body's defense mechanism against infections and foreign invaders such as bacteria, viruses, and parasites. White blood cells, also known as leukocytes, are essential for identifying and attacking pathogens, as well as for orchestrating the overall immune response by signaling other components of the immune system.

In addition to their role in defending the body against infection, white blood cells can also involve processes like inflammation and the activation of other immune cells, which contribute to both immediate and long-term protection.

In contrast, the other options refer to functions that are not associated with white blood cells. Oxygen transportation is primarily the role of red blood cells, while blood clotting is predominantly managed by platelets and clotting factors. Nutrient transport is mainly conducted by plasma and red blood cells, which deliver essential nutrients throughout the body.