Osmosis

HideShow resource information
  • Created by: samya_
  • Created on: 27-12-17 12:31
What is Osmosis?
Diffusion of water molecules across a partially permeable membrane, from an area of higher water potential to an area of lower water potential
1 of 6
What is water potential?
Potential(likelihood) of water molecules to diffuse out of or into solution
2 of 6
What has highest water potential?
Pure water has highest water potential . ALL SOLUTIONS HAVE A LOWER WATER POTENTIAL THAN PURE WATER
3 of 6
When are solutions said to be isotonic?
When two solutions have the same water potential they are said to be isotonic
4 of 6
What several factors does the rate of osmosis depend on?
Water potential gradient-higher it is faster rate of osmosis, as osmosis take place the difference in water rpotentila on either side of membrane decreases, so rate of osmoso levels of over time **thickness of ES, thinner th faster *SA of ES, larg fa
5 of 6
MORE SOLUTE ADDED
= MORE CONCENTRATION= MORE NEGATUVE=LOWER WATER POTENTIAL
6 of 6

Other cards in this set

Card 2

Front

What is water potential?

Back

Potential(likelihood) of water molecules to diffuse out of or into solution

Card 3

Front

What has highest water potential?

Back

Preview of the front of card 3

Card 4

Front

When are solutions said to be isotonic?

Back

Preview of the front of card 4

Card 5

Front

What several factors does the rate of osmosis depend on?

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Biology resources:

See all Biology resources »See all Cell Membranes resources »