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4.1.3.2 Osmosis
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Total cards: 6•Content version: v4•Public deck•Updated: 8/1/2026
Card preview (6)
#1
Front (Question)
What is osmosis?
Back (Answer)
• the movement of water molecules across a partially permeable membrane from an area of higher water concentration to an area of lower water concentration • passive movement of water particles
#2
Front (Question)
What is a partially permeable membrane?
Back (Answer)
• membrane with very small holes in it
#3
Front (Question)
What is the only substance that can pass through a partially permeable membrane?
Back (Answer)
• water
#4
Front (Question)
How do the water molecules move?
Back (Answer)
• randomly • pass both ways through the membrane
#5
Front (Question)
What does more water molecules on one side mean?
Back (Answer)
• there is a steady net flow of water into the region with fewer water molecules
#6
Front (Question)
What does a steady net flow of water mean?
Back (Answer)
• the strong sugar solution gets more dilute