OsmosisOnline version Osmosis video by Mrs. Mickens 1 What is osmosis? a the movement of water molecules across a semi-permeable membrane b the movement of gases across a semi-permeable membrane c the process by which the cell only allows certain molecules to pass through 2 A substance that is dissolved in water is called a a solvent b solution c solute 3 Which direction would the water molecules move towards? a Side A - because the molecules must be on one side to create a solvent b Side B - because the molecules move to areas with a higher concentration of solutes c Neither - because the molecules will be in equilibrium 4 Water moves towards areas with higher concentration of solutes. This higher concentration of solutes is described as a hypertonic b hypotonic c isotonic 5 Where would the water move? a To the IV bag because it contains no solutes b To the red blood cells because they have a higher concentration of solutes c isotonic 6 Where would the water move? a towards the salt water fish b towards the bowl of fresh water c isotonic 7 Which word means "equal concentration" [write one: hypertonic, hypotonic, isotonic] Written answer 8 Plants next to salted roads may die because a their cells take in more water molecules and burst b their cells lose water to the hypertonic surroundings c their cells take in too much salt
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