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28 Cards in this Set
- Front
- Back
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Many phospolipids are made from _
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unsaturated fatty acids
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unsaturated fatty acids prevents phospholipds from _
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packing tight together, keeps them liquid
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unsaturared fatty acids are aided by _ wedged to keep at low temps
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cholesterol
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membranes contain _ which give the membrane a stronger framework
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integrins
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integrins attach to the _
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-extracellular matrix
-span the membrane to attach to cytoskeleton |
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_ serve as identification tags that are recognized by proteins of other cells
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glycoproetins
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_ are part of the extracellular matrix are significantly involced in cell-cell recognition
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carbohydrates
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_ molecules cross easily
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nonpolar (carbon dioxide and oxygen)
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_ molecules do not cross easily
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polar (glucose and other sugars)
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diffusion across a membrane does not require energy
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passive transport
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_ ability of a solution to cause a cell to gain or lose water
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tonicty
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isotonic
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even
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hypertonic
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concentration of soulte is higher outside of cell; less water
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hypotonic
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less concentration of solute inside of cell; more water
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water balance within cells
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osmoregulation
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lysed=
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burst
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turgid=
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expanded (plant)
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sriveled=
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shrink
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plasmolyzed =
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plasma membrane shirnks
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transport protein in diffusion
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aquaporins
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some trasnport proteins function by becoming a _
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hydrophilic tunnel for passage
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cells that use ATP to move against the concentration gradient
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active transport
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_ used to export bulky molecules, such as proteins and polysacchrides
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exocytsos
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_ used to import substances useful to the livelihood of cell
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endocytosis
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kinds of endocytosis
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phagocytosis
pinocytosis receptor mediated endocytosis |
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_ engulfment of a particle by a wrapping cell membrane around it, forming a vacuole
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phagocytosis
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_ fluids are taken into small vesicles
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pinocytosis
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_ receptors in a receptor coated pit intereact with a specifc protein, initiating of a vescile
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receptor mediated endoctosis
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