If a test tube of whole blood is subjected to centrifugation, the cells will be packed in the bottom of the tube, and the fluid above it is
A)water.
B)serum.
C)lymph.
D)interstitial fluid.
E)plasma.

Question

Quizplus · Accepted Answer

When whole blood is subjected to centrifugation, the cells settle at the bottom of the tube and the clear fluid above it is plasma, which contains proteins, electrolytes, and other solutes. Serum is similar to plasma but lacks certain clotting factors because it is obtained after coagulation has occurred. Lymph and interstitial fluid are not present in a test tube of whole blood.

If a Test Tube of Whole Blood Is Subjected to Centrifugation