Chapter 5: The Plasma Membrane Flashcards
>Plasma Membrane Structure
>What is meant by Fluid Mosaic
>Define & Give example of semi, selectively permeable membranes
>Phospholipids, amphipathic, nature
>Cell size: SA:V Ratio
Terms : Hide Images [1]
| 238603589 | Semi-permeable | Small enough molecule can pass through | |
| 238603590 | Selectively permeable | "Decide"/choose what passes through the plasma membrane | |
| 238603591 | Fluid Mosaic | ... | |
| 238603592 | Lipid Bilayer | Two layers of fat | |
| 238603593 | How do fats and water interact with each other? Why is this so? | They don't mix; two different molecules make up | |
| 238603594 | Define cytoplasm | 70% water | |
| 238603595 | What do triglyceride look like? | contains 3 fatty acid (F.A.) tails | |
| 238603596 | Phospholipid | A special kind of lipid to form a true membrane; very similar to triglyceride, it has a glycerol molecule with 2 fatty acid tails and phosphate group | |
| 238603597 | Nonpolar | the long fatty acid tails are nonpolar | |
| 238603598 | Polar | the phosphate makes the head region of a the phospholipid polar | |
| 238603599 | Amphipathic | when molecules are both polar and nonpolar |