What is the main component of plasma?

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Multiple Choice

What is the main component of plasma?

Water is the main component of plasma because plasma is the liquid part of blood and is mostly water—about 92%. Water serves as the solvent that carries all dissolved substances in the blood, including electrolytes, nutrients, gases, and plasma proteins. While proteins, electrolytes, and lipids are important for functions like clotting, osmotic balance, and transport, they constitute a much smaller fraction of plasma compared with water. This high water content also helps maintain blood volume and proper circulation.

Water is the main component of plasma because plasma is the liquid part of blood and is mostly water—about 92%. Water serves as the solvent that carries all dissolved substances in the blood, including electrolytes, nutrients, gases, and plasma proteins. While proteins, electrolytes, and lipids are important for functions like clotting, osmotic balance, and transport, they constitute a much smaller fraction of plasma compared with water. This high water content also helps maintain blood volume and proper circulation.

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