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holmanbio1

QuestionAnswer
endocytosis (2 types) Pinocytosis and phagocytosis
homeostasis balanced internal condition of a cell
homeostasis also called equilibrium
selectively permeable all things cannot pass through
cell junctions sites where cells join together
fluid mosaic model describes the appearance of a cell
why does cell membrane act like fluid? moves side to side
cause of mosaic pattern viewed from above scatter protein molecules
3 that pass easily thru cell membranes o2, co2,, and h2o
these do not pass easily ions, hydrophillic, and proteins
osmosis diffusion of water across cell membrane
water diffuses thru pores called aquaporons
cytosis causes cells to swell and burst
distilled water causes a red blood cell to swell and burst
concentrated salt solution cause red blood cell to shrink and shrivel
Created by: wmhs
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