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What is osmosis and how does it affect cells?
Osmosis is the movement of water molecules across a semipermeable membrane from a region of higher water concentration to a region of lower water concentration. In cells, osmosis can cause the cell to either swell or shrink, depending on whether water moves into or out of the cell. If a cell takes in too much water and swells, it may burst, while if too much water leaves a cell, it may shrink and become dehydrated.
What happens to the cells when the salt water is flushed out with distilled water?
When salt water is flushed out with distilled water, the concentration of salt outside the cells decreases. This creates a gradient that causes water to move into the cells through osmosis. As a result, the cells may swell and potentially burst due to the influx of water.
When water moves away from land what is it called?
When water moves away from land, it is called low tide. This occurs when the gravitational forces of the moon and the sun cause the water levels to recede, exposing more of the shoreline.
If plant cells are immersed in distilled water the resulting movement of water into the cells is called?
The movement of water into plant cells when they are immersed in distilled water is called osmosis. Osmosis is the diffusion of water molecules across a selectively permeable membrane from an area of higher water concentration to an area of lower water concentration.
What are the effects of the uptake and loss of water in animal cells?
In pure water, or a weak salt solution; water moves into the cell. The cell wall then swells and bursts. This is due to the cell taking in too much water, so much so that it bursts. This is known as Lysis. In a medium salt or sugar solution there is no net movement of water. This is because the amount of water going into and out of the cell is equal. In a strong salt or sugar solution the water moves out of the cell. This mean the cell shrinks and shrivels and it has lost too much water so has shrivelled. This is known as crenation.
