Florida Basic Recruit Training Program High Liability (First Aid) Practice Exam

What is the primary role of plasma in the blood?

1. Transport oxygen

2. Fight infections

3. Carry nutrients and waste products

4. Clot blood

The correct answer is: Carry nutrients and waste products

The primary role of plasma in the blood is to carry nutrients and waste products. Plasma is the liquid component of blood, making up about 55% of its volume. It serves several essential functions, but one of its most critical roles is as a transport medium. Plasma contains water, electrolytes, proteins, hormones, and waste products. It helps in the distribution of nutrients such as glucose, amino acids, and vitamins to cells throughout the body, ensuring that they receive the necessary components for energy production and metabolism. Furthermore, plasma plays a vital role in removing waste products, such as carbon dioxide and urea, from the cells and transporting them to the organs responsible for their elimination, like the lungs and kidneys. This functionality is essential for maintaining homeostasis within the body. By effectively carrying nutrients and waste products, plasma supports overall circulatory health and facilitates the proper functioning of organs and systems, which is crucial for survival and well-being.