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What happens to an animal cell in a solution with a higher water potential?
What happens to an animal cell in a solution with a higher water potential?
in a solution with a higher water potential
cytoplasm has a lower water potential than surrounding solution
animal cell
cytoplasm
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in a solution with a higher water potential
water enters by osmosis
As water enters the cell, the cell swells as it does not have a cell wall to protect it.
cell expands
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What happens to an animal cell in a solution with a higher water potential?
in a solution with a higher water potential
cell eventually bursts.
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What happens to an animal cell in a solution with a higher water potential?
What happens to an animal cell in a solution with a lower water potential?
in a solution with a lower water potential
cytoplasm has a higher water potential than surrounding solution
animal cell
cytoplasm
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What happens to an animal cell in a solution with a lower water potential?
in a solution with a lower water potential
water leaves by osmosis
As the cell loses water, it shrinks in size.
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What happens to an animal cell in a solution with a lower water potential?
in a solution with a lower water potential
• As the cell shrinks, little spikes appear on the cell surface membrane. This process is called crenation. The cell is said to be crenated.
• An animal cell will become dehydrated and eventually die.
spikes
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What happens to an animal cell in a solution with a lower water potential?
* * *
• Plant cells which are turgidthe plant leaf or stem appear to be firm/hard
• Plant cells which are plasmolysed/faccid.
• The plant tissue tend to be soft.
Critique on this explanation
The water concentration outside cells are higher than that inside the cell.
Water molecules move from inside to outside of the cell by osmosis.
As a result, cell becomes turgid and shrinks in size.
The plant tissue feel soft and
smooth.
The water potential inside cells are higher than that outside the cell.
Water molecules move from inside to outside of the cell by osmosis via a partially permeable membrane.
As a result, cell becomes plasmolyzed/flaccid and shrinks in size. The plant tissue feel soft and smooth.
Starch Grains
• They are temporary stores of photosynthetic products, such as starch.
