What is the role of blood plasma?

• A. Forms the blood clot
• B. Carries nutrients and platelets
• C. Carries oxygen to tissues
• D. Forms red blood cells

Answer: (B)

Blood plasma is the liquid part of blood, and its main job is to transport a variety of substances around the body. It carries nutrients such as glucose and amino acids to cells, along with hormones, waste products, and proteins. It also houses the platelets and the clotting factors needed to form a clot when there's an injury, allowing these components to reach the site of damage. Oxygen delivery is performed by red blood cells, not plasma, and forming red blood cells happens in the bone marrow, not in plasma. So the best description is that plasma carries nutrients and platelets, reflecting its role as the transport fluid that moves these components through the bloodstream.