Which of the following is the liquid or fluid portion of the blood?

• A. White blood cells
• B. Platelets
• C. Red blood cells
• D. Plasma

Answer: (D)

Verified step by step guidance

1. Understand that blood is composed of several components, each with a specific function.
2. Identify the main components of blood: red blood cells, white blood cells, platelets, and plasma.
3. Recognize that red blood cells, white blood cells, and platelets are cellular components, meaning they are solid or formed elements.
4. Learn that plasma is the liquid portion of the blood, which serves as a medium for transporting nutrients, hormones, and waste products.
5. Conclude that among the options given, plasma is the correct answer as it is the fluid portion of the blood.