11 terms

Diffusion and osmosis keywords

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diffusion
the net movement of molecules from an area of high concentration to an area of low concentration
osmosis
diffusion of water through a semipermeable membrane from an area of higher concentration to an area of lower concentration until the concentration on both sides is equal
concentration gradient
a difference in the concentration of a substance across a distance
hypertonic
(of a solution) having a higher concentration than a comparison solution
hypotonic
(of a solution) having a lower concentration than a comparison solution
isotonic
(of a solutions) having the same or equal concentration
semi-permeable membrane
a membrane that allows some molecules to pass through but not others
turgid
abnormally swollen, especially by fluids or gases
flaccid
lacking firmness or stiffness
plasmolysis
the contraction or shrinking of the cell membrane of a plant cell in a hypertonic solution in response to the loss of water by osmosis
lysis
dissolution or destruction of cells