it14spr201.20bc5t5.txt

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Author:
apgroupc
ID:
257753
Filename:
it14spr201.20bc5t5.txt
Updated:
2014-01-21 19:30:02
Tags:
profmwinston
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Topic 5
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  1. The process when solutes cross membranes with the assistance of membrane proteins
    Mediated transport
  2. Passive mediated transport that does not require energy, in which molecules cross membranes as they move down their concentration gradient
    Facilitated diffusion
  3. This is a name of a group of proteins that move molecules across membranes
    Transporters
  4. These type of transporters create water-filled passageways that directly link the intracellular and extracellular compartments
    Channel proteins
  5. These transporters bind to substrates that they carry but never form direct connection between intracellular and extracellular fluid
    Carrier proteins
  6. The name for the protein channel that is made from aquaporin that allows water to pass through
    Water channel
  7. The name for the channel that allows different types of ions to pass through
    Ion channel
  8. These channels have gates that spend most of their time open for easy passage of ions across membrane
    Open channel
  9. These channels have gates that spend most of their time closed in order to regulate the passage of ions across membrane
    Gated channel
  10. This is the name for the channel that is controlled by intracellular messenger molecules or extracellular ligands that bind to channel proteins
    Chemically gated channels
  11. This is the name for the channel that is controlled by a change in the electrical state of the cell
    Voltage gated channel
  12. This is the name of the channel that requires force to open the gates
    Mechanically gated channel
  13. The type of carrier protein that moves only one kind of molecule at a time
    Uniport carrier
  14. The type of carrier protein that moves more than one kind of molecule at a time
    Cotransporter
  15. The type of carrier protein that moves molecules in only one direction
    Symport carrier
  16. The type of carrier protein that carries molecules in opposite directions
    Antiport carrier
  17. This type of transport uses ATP as it’s energy source
    Primary active transport
  18. This type of transport uses kinetic energy one molecule moving down its concentration gradient to move other molecules against their concentration gradient
    Secondary active transport
  19. This word describes the rate of transport into a cell compared to maximum concentration of the extracellular substrate
    Transport maximum
  20. The ability of a carrier to move only one molecule or only closely related group of molecules
    Specificity
  21. A group of molecules competing with one another for binding sites on transporters
    Competition
  22. When the carrier binding sites are filled with substrates
    Saturation
  23. Movement of molecules from an area of higher concentration to an area of lower concentration
    Simple diffusion

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