What percentage of blood is made up of plasma?

Blood is composed of several components, and plasma is the liquid portion that makes up a significant part of blood's total volume. Plasma accounts for about 55% to 60% of whole blood in a healthy adult. This clear, yellowish fluid contains water, electrolytes, nutrients, hormones, and waste products. It serves as a transport medium for these substances, allowing for efficient circulation throughout the body.

Choosing 60% reflects a common understanding in biology regarding the composition of blood, which is essential for the maintenance of homeostasis and the overall functioning of the circulatory system. This knowledge is critical for understanding how various blood components interact and the roles they play in physiological processes.