Which of the following is an example of osmosis?
A) Glucose is transported from our blood stream across cell membranes and into the cytoplasm.
B) Sodium is pumped across a cell to increase its concentration on one side of the cell membrane.
C) Cells of our kidneys reabsorb water to prevent it from all leaving through our urine.
D) A broken bottle of perfume is able to be smelled throughout the department store.
E) A bacterium in the blood stream is engulfed by a white blood cell.

Question

Quizplus · Accepted Answer

Osmosis is the movement of water molecules across a selectively permeable membrane from a region of high concentration of water molecules to an area of lower concentration of water molecules. In the given options, only option C describes the movement of water molecules from the kidney cells to prevent its loss in urine, which is an example of osmosis.

Which of the Following Is an Example of Osmosis