Why is plasma important for the body?

Plasma is a crucial component of blood that serves several important roles within the body, and one of its primary functions is the transportation of blood cells. Blood is composed of red blood cells, white blood cells, and platelets, all of which are suspended in the liquid portion known as plasma. This yellowish fluid provides the medium through which these cells are carried throughout the circulatory system, ensuring they reach their destination to perform vital functions.

Red blood cells are responsible for transporting oxygen from the lungs to body tissues and returning carbon dioxide for exhalation. White blood cells, which play a key role in the immune response, are delivered to sites of infection or inflammation. Platelets, which are essential for clotting, also travel in plasma to areas of vascular injury to help stop bleeding.

While plasma does play roles in nutrient absorption, temperature regulation, and facilitating clotting, its primary and most distinct role among these is the transportation of blood cells, making this option the most accurate in terms of both function and significance within the circulatory system.