biology- osmosis
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5 Terms
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what is osmosis
the movement of water molecules across a partially permeable membrane, from an area of higher water concentration to an area of lower water concentration
2
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what is a partially permeable membrane
a membrane with small holes in it so tiny molecules can pass through
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can the water molecules move both ways
yes, water moves randomly
4
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how can you see osmosis at work
potato experiment
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what is the potato osmosis experiment
you cut a potato into two cylinders in two different beakers
in one beaker- pure water
other beaker- concentrated sugar solution
measure mass
leave for 24 hours
then measure the mass to see if osmosis has happened
Note 
Flashcards (34)