Osmosis 3 Flashcards
(5 cards)
1
Q
What type of membrane does osmosis occur across?
A
A partially permeable membrane, like a cell membrane
2
Q
What does a partially permeable membrane allow through?
A
Water molecules, but not ions or large molecules
3
Q
What happens to an animal cell in pure water?
A
Water enters the cell —> cell swells and bursts
4
Q
What happens to an animal cell in a concentrated solution?
A
Water leaves the cell swells—> cell shrinks
5
Q
Why does osmosis occur across cell membranes?
A
As the membrane allows water through but not solutes, creating a water potential difference
