What is the difference between Endosmosis and Exosmosis? - ProProfs Discuss
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What is the difference between Endosmosis and Exosmosis?

Asked by Isa , Last updated: Jul 03, 2020

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D. Peter

Apart from developing codes, I also spend some time in quality writing.

D. Peter, Software Developer, B.E (Bachelor of Engineering), Mexico

Answered Jun 16, 2020

Endosmosis is the passage of a substance through a membrane, and it is the inward passage of liquid through a membrane of a cell that contains a fluid of a different density. The fluid on the outside is passing through the cell wall and going into a more concentrated liquid. A good example would be putting raisins into the water, where the water seeps into the raisin, and they become puffy.

Exosmosis would be the opposite where the fluid in the cell flows outward, and the cell shrinks. So, if we go back to the plump raisin placed in saltwater would make the fluids flow from the interior to the outside, and the raisins would revert to their original shrunken form.

 

C. Lucan

I'm a freelance Copywriter and well that explains everything!

C. Lucan, Copywriter, Literature Major, Baton Rouge, Louisiana

Answered Jun 07, 2020

The solvent moves into a cell in endosmosis while the solvent moves out of a cell in exosmosis. Concentrate of solute is higher in the cell for endosmosis, unlike exosmosis, where the solute concentration is higher outside the cell. Water potential is higher inside the cell for exosmosis and lowers outside the cell while water potential is lower inside the cell for endosmosis but higher outside the cell. The cell becomes swollen and burst, especially in animal cells, in the case of endosmosis. While in exosmosis, the cell shrinks.

In plants, exosmosis occurs by the movement of water out of root hair cells into the cortex, while endosmosis occurs by movement of water into root hair cells from the soil. In animals, saltwater fishes are expected to undergo exosmosis, while freshwater fishes do undergo endosmosis. In humans, humans would suffer water intoxication if they undergo too much endosmosis, while if there is too much exosmosis, they will suffer dehydration.

 

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