The liquid component of blood that primarily transports nutrients, hormones, and wastes is known as what?

• A. Plasma
• B. Platelets
• C. Red Blood Cells
• D. White Blood Cells

Answer: (A)

The liquid component of blood that serves as the transport medium for nutrients, hormones, and waste products is plasma. Plasma is mostly water and carries dissolved substances such as glucose, amino acids, vitamins, minerals, gases, electrolytes, and important proteins like albumin, globulins, and fibrinogen. It is the non-cellular part, surrounding the cells. The solid components—red blood cells, white blood cells, and platelets—handle other roles: red blood cells transport oxygen and carbon dioxide, white blood cells fight infection, and platelets aid in clotting. Because the question asks for the part that primarily transports nutrients, hormones, and wastes, plasma is the correct choice.