Osmosis

• What is osmosis?

  The movement of water from high to low concentration through a semi-permeable membrane
• What is required for osmosis to occur?

  A selectively permeable membrane
• In osmosis, water moves from:

  An area of high water concentration to low water concentration
• What happens when a plant cell is placed in a hypertonic solution?

  It shrinks
• What is the result of osmosis in animal cells placed in a hypotonic solution?

  The cell will burst due to water intake
• What does “selectively permeable” mean in terms of osmosis?

  The membrane only allows certain molecules to pass through
• In osmosis, which molecule moves across the cell membrane?

  Water
• What happens to a red blood cell placed in pure water?

  It bursts
• What is the direction of water movement in osmosis?

  From high to low concentration of water
• Why is osmosis important for cells?

  It helps cells maintain their shape and balance of water