1 / 9

The Cell Membrane

The Cell Membrane. Cell Membrane Basics. Function: Controls the passage of materials into and out of a cell Semi-Permeable: only some materials may enter/exit Double layer of phospholipids (bilayer). Phospholipid. Phospholipid Composition. 3 Parts Polar Head 1) Phosphate Group

mohammad-wilder
Download Presentation

The Cell Membrane

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. The Cell Membrane

  2. Cell Membrane Basics • Function: Controls the passage of materials into and out of a cell • Semi-Permeable: only some materials may enter/exit • Double layer of phospholipids (bilayer)

  3. Phospholipid Phospholipid Composition • 3 Parts Polar Head • 1) Phosphate Group • 2) Glycerol Nonpolar Tails • 3) Two chains of fatty acids • Arrangement: • Outside: Polar heads • Inside: Nonpolar Tails

  4. Phospholipid Bilayer

  5. Cell Membrane Contents 1) Cholesterol Molecules: strength 2) Carbohydrates: identification 3) Various Proteins

  6. Membrane Proteins • Randomly scattered through bilayer • Various Functions • Cytoskeleton: internal support • Protein channels: allow objects to pass • Enzymes: speed up chemical reactions • Markers: cell recognition; fight disease

More Related