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7. which type of transport below moves water through a selectively-permeable membrane from areas of greater concentration to areas of lesser concentration?
a. diffusion
b. facilitated
c. osmosis
d. chain-reactive
8. diffusion occurs to ultimately reach or an even distribution of molecules throughout a given space (remember the yellow dye in water? )
a. equilibrium
b. instability
c. high concentration
d. low concentration
9. water movement into and out of a cell is dependent upon the surrounding the cell.
a. temperature
b. environment
c. number of lipid molecules
d. total number of phospholipid molecules in the cell membrane
10. which comparison of osmosis and diffusion is accurate?
a. osmosis moves molecules, diffusion moves water
b. diffusion moves across a selectively-permeable membrane, osmosis does not involve a membrane
c. both move molecules up a concentration gradient
d. osmosis moves water down a concentration gradient, diffusion moves molecules down a concentration gradient
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