1 / 14

Cell Transport

Cell Transport. (1). Passive Transport/Diffusion. Passive Transport/Diffusion. The movement of particles from HIGH concentration to LOW concentration. Diffusion example. Passive Transport. Does NOT use energy. May go through cell membrane or protein “doorways” in the cell membrane.

buckminster-dixon
Télécharger la présentation

Cell Transport

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. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Cell Transport

  2. (1) Passive Transport/Diffusion

  3. Passive Transport/Diffusion • The movement of particles from HIGH concentration to LOW concentration. Diffusion example

  4. Passive Transport • Does NOT use energy. • May go through cell membrane or protein “doorways” in the cell membrane.

  5. Example: Spraying Perfume Example: Sugar in Iced Tea

  6. Passive Transport • The molecules move from an area of high concentration to an area of low concentration • Movement does not require energy (passive transport) • The movement of larger molecules (like sugar molecules) uses a protein “doorway” to go through the membrane

  7. Passive Transport/Osmosis: The diffusion of waterOsmosis in a Cell

  8. (2) Active Transport

  9. (2) Active Transport • The movement of particles from LOW concentration to HIGH concentration.

  10. DOES use energy. • May go through proteins in the cell membrane.

  11. Bulk Transport-Active • Endocytosis- the cell membrane folds into a pouch (vesicle) that encloses the large particles

  12. Bulk Transport-Active • Exocytosis- the release of cell products and wastes from the cell

  13. Tonicity (descriptive words used to compare solutions)Water will diffuse to where there is more solute. • Hypotonic Solution - One solution has a lower concentration of solute than another. • Hypertonic Solution - one solution has a higher concentration of solute than another. • Isotonic Solution - both solutions have same concentrations of solute.

  14. Plant and Animal Cells put into various solutions

More Related