What is the liquid part of blood called?

What is the liquid part of blood called?

• A. Plasma
• B. Serum
• C. Platelets
• D. Cells

Answer: (A)

The liquid portion of blood is plasma. It makes up most of the blood’s volume and is mainly water, with dissolved substances and three major protein groups: albumin, globulins, and fibrinogen. Albumin helps maintain blood volume and pressure, globulins include antibodies and transport proteins, and fibrinogen is involved in blood clotting. Plasma carries nutrients, hormones, wastes, and electrolytes throughout the body. When blood clots and the clot is removed, the remaining liquid is serum, which lacks clotting factors like fibrinogen. The other terms refer to solid or semi-solid components: platelets are small cell fragments involved in clotting, and cells refer to the formed elements such as red blood cells and white blood cells.

The liquid portion of blood is plasma. It makes up most of the blood’s volume and is mainly water, with dissolved substances and three major protein groups: albumin, globulins, and fibrinogen. Albumin helps maintain blood volume and pressure, globulins include antibodies and transport proteins, and fibrinogen is involved in blood clotting. Plasma carries nutrients, hormones, wastes, and electrolytes throughout the body. When blood clots and the clot is removed, the remaining liquid is serum, which lacks clotting factors like fibrinogen. The other terms refer to solid or semi-solid components: platelets are small cell fragments involved in clotting, and cells refer to the formed elements such as red blood cells and white blood cells.