Question

Why is blood considered a suspension?

Answer 1

Because platelets and other things are "suspended" in the plasma.

Step-by-step explanation:

When blood is put into a centrifuge it separates into its separate components (eg: Red blood cells, plasma, White blood cells, platelets, etc)

Answer 2

Blood is considered a suspension because it contains particles that can settle out. A (heterogeneous) suspension is defined as a mixture between a liquid and particles of a solid. ... Blood cells separate and settle from the plasma, the watery part of the blood.