transport mech..txt

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Author:
flossie1228
ID:
103084
Filename:
transport mech..txt
Updated:
2011-09-20 16:28:02
Tags:
BIOL Lab 2113
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Description:
transport mechanisms
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  1. allows nutrients to enter the cell but keep out undesirable substances-
    selective permeability
  2. cell providews energy (ATP) to power the transport-
    active transport
  3. transport process is driven by particle concentration or pressure differences (doesn't use ATP)-
    passive transport
  4. movement of molecules from a region of higher concentration to a region of their lower concentration-
    diffusion
  5. diffusion of solutes through a semipermeable membrane-
    simple diffusion
  6. diffusion of water through a semipermeable membrane-
    osmosis
  7. affects diffusion-
    temp & molecule size
  8. passive process by which water & solutes are forced through a membrane by hydrostatic pressure; isn't selective-
    filtration
  9. used to determine glucose (test)-
    benedicts
  10. used to test for silver chloride-
    silver nitrate

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