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28 Cards in this Set

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 What are the 3 types of movement? 1. Bulk Flow 2. Diffusion 3. Transport What are some examples of Bulk Flow? *CONVENTION* 1. blood/artery 2. air/bronchiole 3.chyme/intestine What are some examples of Diffuision? *WITHIN COMPARTMENTS* 1. passive/random thermal action 2. concentration gradients What are some examples of Transport? *ACROSS BARRIER* 1. solubility + Diffusion/ lipid bilayer 2. Carrier mediated transport 3. Endo/Exo-cytosis What does FICK'S LAW of diffusion depend on? 1. Concentration gradient 2. Area Why are cells no further than 100um from thier energy source? Distances greater than 100um increase the time of diffusion by a lot! Why are cells no bigger than 10um? Because a cell that is greater in size will be less efficient in moving things around the cell..by ALOT! So what do diffusional distances tell us about the function? If we need diffusion to be slow then distances should be greater like in dermis which provide a protection function vs. a mitcondria that has small distance across b/c it needs to produce energy fast! What does the partition coefficient tell us? measure of a solute lipophilicity and an indication of its ability to cross cell membranes. What does a Partition coefficient greater than 1 tell us (1>K)? Lipophilic i.e can cross easily across lipid bilayer What does a Partition coefficient Less than 1 tell us (1