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lab 5 - movements through cell membranes
Terms in this set (15)
diffusion? a perfume bottle is opened, and soon the odor can be sensed in all parts of the room
diffusion? a sugar cube is dropped into a cup of hot water, and, without being stirred, all of the liquids becomes sweet tasting.
diffusion? water molecules move from a faucet thru a garden hose when the faucet is turned on.
diffusion? a person blows air molecules into a balloon by exhaling forcefully.
diffusion? a crystal of blue copper sulfate is placed in a test tube of water. the next day, the solid is gone, but the water is evenly colored.
osmosis? a fresh potato is peeled, weighed, and soaked in a strong salt solution. the next day, it has lost weight.
osmosis? garden grass wilts after being exposed to dry chemical fertilizer.
osmosis? air molecules escape from a punctured tire as a result of high pressure inside.
osmosis? plant seeds soaked in water swell and become several times as large as before soaking
osmosis? when the bulb of a thistle tube filled with water is sealed by a selectively permeable membrane and submerged in a beaker of molasses, the water level in the tube falls.
filtration? oxygen molecule move into a cell and CO2 molecules leave a cell because of differences in the concentrations of these substances on either side of the cell membrane.
filtration? blood pressure forces water molecules from the blood outward thru the thin wall of a blood capillary.
filtration? urine is forced from the bladder thru the tubular urethra by muscular contractions.
filtration? air molecules enter the lungs thru the airways when air pressure is greater outside these organs than inside.
filtration? coffee is made using a coffeemaker.
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