osmosis
Download
Skip this Video
Download Presentation
Osmosis

Loading in 2 Seconds...

play fullscreen
1 / 14

Osmosis - PowerPoint PPT Presentation


  • 96 Views
  • Uploaded on

Osmosis. The cell membrane is selectively permeable. This means that only certain things are allowed to go through it, like food and oxygen. Things move in and out of the cell through the process of diffusion. They move from an area of high concentration to an area of low concentration.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' Osmosis' - vicky


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
slide2
The cell membrane is selectively permeable. This means that only certain things are allowed to go through it, like food and oxygen.
slide3
Things move in and out of the cell through the process of diffusion.
  • They move from an area of high concentration to an area of low concentration.
slide4
The most important substance to go through the cell membrane is water. Cytoplasm is 80% water.

Osmosis is a special type of diffusion where water (and only water) moves from high to low concentration.

slide5
Fresh water will always move toward salty water. In other words, water moves from an area of high purity to an area of low purity.
trout
Trout

If we place a trout in fresh water, what does the trout’s cells look like?

Equal concentration inside and outside the cell cell is happy!!

trout1

Cell Shrinks!

Trout

If we place a trout in saltwater (ocean), what happens to the trout cells?

Higher salt concentration outside the cell water moves out of the cell.

If we place a trout in saltwater (ocean), what happens to the trout cells?

Higher salt concentration outside the cell water moves out of the cell.

Cell Shrinks!

shark

CELL BURSTS!

Shark

If we place a shark in fresh water, what happens to the shark’s cells?

More salt inside cell water rushes in to dilute salt.

shark1
Shark

If we place a shark in saltwater (ocean), what do the shark’s cells look like?

Equal inside and outside of cellHappy!

sources
Sources
  • http://www-tc.pbs.org/kcet/wiredscience/blogs/malaria.jpg red blood cells
  • http://www.esu7.org/~lweb/gifs/cells.jpg bursting red blood cell
  • http://mason.gmu.edu/~jlawrey/biol304/biol304/elodea%20turgid.jpg turgid cells
  • http://www.benbest.com/cryonics/Osmosis.jpg osmosis diagram
ad