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Chapter 5: The Plasma Membrane Flashcards

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>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
238603589Semi-permeableSmall enough molecule can pass through
238603590Selectively permeable"Decide"/choose what passes through the plasma membrane
238603591Fluid Mosaic...
238603592Lipid BilayerTwo layers of fat
238603593How do fats and water interact with each other? Why is this so?They don't mix; two different molecules make up
238603594Define cytoplasm70% water
238603595What do triglyceride look like?contains 3 fatty acid (F.A.) tails
238603596PhospholipidA 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
238603597Nonpolarthe long fatty acid tails are nonpolar
238603598Polarthe phosphate makes the head region of a the phospholipid polar
238603599Amphipathicwhen molecules are both polar and nonpolar
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