Which one of the following is an example of osmosis? View Available Hint(s) Which one of the following is an example of osmosis? Food in the refrigerator starts to taste like onions because the onions in the vegetable bin have been stored unwrapped. Potassium ions enter a red blood cell through the action of a specific ion transport protein. The smell of freshly baked pie spreads throughout a house. Water enters a plant by passing through the root cell membranes.