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Multiple Choice

Which component of blood acts as a solvent for dissolved or suspended substances?

The liquid part of blood serves as the medium in which everything else is dissolved or carried. Plasma is that fluid component, mostly water, and it acts as the solvent for nutrients, electrolytes, hormones, wastes, and a variety of solutes and dissolved proteins. The other items—red blood cells, white blood cells, and platelets—are the solid components suspended in this plasma. So plasma is the component that provides the solvent environment for dissolved or suspended substances in blood.

The liquid part of blood serves as the medium in which everything else is dissolved or carried. Plasma is that fluid component, mostly water, and it acts as the solvent for nutrients, electrolytes, hormones, wastes, and a variety of solutes and dissolved proteins. The other items—red blood cells, white blood cells, and platelets—are the solid components suspended in this plasma. So plasma is the component that provides the solvent environment for dissolved or suspended substances in blood.