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Cells swell up in water because they are not isotonic to the solution they are residing in and therefore at equilibrium. For instance the cells in your body become dehydrated when water rushes out of the cell because the concentration is less on the outside (this is the concentration gradient). Solutes move from high to low concentration. Now since the cells are swelling up with water it is because water has rushed into the cell because the concentration was higher on the outside of the cell so it s said that the solution is hypertonic to the cell. In the case of water rushing out it is said that the solution is hypotonic. In addition it is important to know that this affects animal and plant cells differently. Refer to the link in the "related link" section.

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Also, one should note that when a cell becomes too full of water, it explodes.

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Related Questions

What is it called when the cells start to swell up with water?

hemolysis


What happens if your body has a lot of water?

your cells will swell up and will lyse. this is a common way for drowing to occur.


What happens to cells in a hypotonic environment?

In a hypotonic environment, cells take in water via osmosis, causing them to swell and potentially burst if the cell wall is not strong enough to withstand the influx of water.


Why brain cells swell when the blood plasma is very dilute?

Osmosis is the movement of water from a High Water (Dilute Solution) to a Low Water (Strong Solution). If blood plasma becomes very dilute with water, when it travels to the brain the brain cells will swell because the are taking on too much water. This happens because the high concentration of water (in the blood) is moving to the lower concentration of water (brain cells) making the cells swell as they are taking on too much water.


Do the cells in your body swell and lyse when you drink water?

No, drinking water does not cause cells in your body to swell and lyse. Cells have mechanisms to regulate their water content, so they can expand slightly to accommodate the extra water without bursting.


What happens to red blood cells when they are placed in distilled water?

because of osmosis it would get fatter and fatter with water till it burst. aww.


What the plant cells called that absorb water and swell up by absorbing water?

The plant cells that absorb water and swell up are called parenchyma cells. These cells have thin cell walls and can expand to store water, aiding in plant support and growth.


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.


What might happen if water kept entering cells but no water left the cell?

it will swell


What will happen to an egg in hypo tonic water?

In a hyptonic solution, water will move into the cells of the egg, and it will swell, and the cells will burst.


What happens when the stomatas of a plant are facing the sun?

The guard cells in the stomata will swell and it will cause the pores to be at its widest and CO2 diffuses into the leaf and into the cells and it will be used for photosynthesis. It will also diffuse water vapour from the leaf.


What happens to purple onion skin cells when tap water is added?

When tap water is added to purple onion skin cells, the cells will undergo osmosis. Water will move into the cells, causing them to swell and potentially burst if too much water is absorbed. The purple color of onion cells may also diffuse into the surrounding water.