Question

A centrifuge can be used to separate substances based on their size/weight. You place a mixture of viruses, bacteria, and human red blood cells in a test tube and centrifuge it. The smallest/lightest structures will end up toward the top of the tube, and the largest/heaviest structures will be toward the bottom. From top to bottom in your tube, what will you expect to find?
Choose one:
A. red blood cells, bacteria, virus
B. virus, red blood cells, bacteria
C. bacteria, red blood cells, virus
D. virus, bacteria, red blood cells

Answer 1

B. virus, red blood cells, bacteria