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transport mech..txt
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allows nutrients to enter the cell but keep out undesirable substances-
selective permeability
cell providews energy (ATP) to power the transport-
active transport
transport process is driven by particle concentration or pressure differences (doesn't use ATP)-
passive transport
movement of molecules from a region of higher concentration to a region of their lower concentration-
diffusion
diffusion of solutes through a semipermeable membrane-
simple diffusion
diffusion of water through a semipermeable membrane-
osmosis
affects diffusion-
temp & molecule size
passive process by which water & solutes are forced through a membrane by hydrostatic pressure; isn't selective-
filtration
used to determine glucose (test)-
benedicts
used to test for silver chloride-
silver nitrate
Author
flossie1228
ID
103084
Card Set
transport mech..txt
Description
transport mechanisms
Updated
2011-09-20T20:28:02Z
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