examples of osmotic pressure
Answers
An excellent example of a semipermeable membrane is that inside the shell of an egg. After shell removal is accomplished with acetic acid, the membrane around the egg can be used to demonstrate osmosis. Karo syrup is essentially pure sugar, with very little water in it, so its osmotic pressure is very low.
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Answer:
Wilting Plants
Explanation:
Many plants actually use osmotic pressure to maintain the shape of their stems and leaves.
If you have kept potted plants, you probably know that your plants can become very wilted very quickly if they are not watered. But within just minutes of watering, they can perk right back up!
This is because the stems and leaves of many plants are essentially “inflated” by osmotic pressure – the salts in the cells cause water to be drawn in through osmosis, making the cell plump and firm.
If not enough water is available, the plant will wilt because its cells are becoming “deflated.” In scientific terms, they are “hypertonic” – which means “the concentration of solute is too high.”
Plants can also demonstrate the power of osmotic pressure as they grow.
You may have seen plants springing up through asphalt, or tree roots growing through bricks or concrete.
This, too, is made possible by osmotic pressure: as plants grow, their cells draw in more water. The slow but inexorable pressure of water moving through the plant cell’s membranes can actually push through asphalt!