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CH.3 Topic 5
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Passive Transport
No energy is required by the cell, happens automatically without effort
Diffusion
Movement of particles from a high concentration to a low concentration
Osmosis
Movement of water from a high concentration to a low concentration
Concentration Gradient
Area of High concentration to an area of Low concentration
Diffusion Equilibrium
When concentrations of the diffusing substance in the two compartments are the same or equal
Osmolality
A particle measurement
Solute
Stuff dissolved. EX: salts or gases.
Solvent
Water
Physiological Steady State
A stable condition that does not change over time
Diffusible Substances
Capable of passing through membranes by osmosis
Facilitated Diffusion
The carrier mediated transport of a solute through a membrane down its concentration gradient
Osmotic Pressure
Spontaneous net movement of solvent molecules through partially permeable membranes
Hypertonic
Solution is one with a higher concentration
Hypotonic
Solution with a lower concentration
Isotonic
Equal concentration of solutes inside and out. No net flow of water
Filtration
Process to separate solid particles from fluids
Author
GroupA
ID
260757
Card Set
CH.3 Topic 5
Description
Passive Transport
Updated
2/7/2014, 5:45:57 PM
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