Osmosis Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

Water potential is..

A

A measure of the tendency of water molecules to diffuse from one place to another

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is the water potential of pure water?

A

0 kPa (kilopascals)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What happens if animal cells are put in pure water

A

Lots of water molecules enter, cell swells and bursts, this is called cytolysis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What happens if an animal cell is put in concentrated solute solution

A

Lots of H2O molecules leave, cell shrivels, we call it cremated

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What happens if a plant cell is put in pure water

A

The strong cellulose cell wall prevents bursting, instead the pressure of water pushing on the cell wall will make the cell turgid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What happens if a plant cell is put in concentrated solute solution

A

The cytoplasm will shrink and the membrane will begin to pull away from the cell wall. The cell is plasmolysed and the tissue is flaccid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Deifinition of osmosis

A

Movement of water particles from an area of high conc to an area of low conc across a partially permeable membrane

How well did you know this?
1
Not at all
2
3
4
5
Perfectly