Osmosis

• What is osmosis?

  Diffusion of water across a membrane
• What does osmosis occur down?

  Water potential gradients
• What is water potential represented by?

  Psi (ψ)
• What does a more negative water potential indicate?

  Higher concentration of solutes
• What is the room temperature mentioned in the study material?

  25 °C
• What happens to water movement when cells have a lower water potential than pure water?

  Water moves into the cells
• In which condition is the rate of water movement fastest?

  In a solution with water potential 2000
• What happens to cells during pressure lysis?

  Cells burst due to excess water
• What is another term for cell bursting?

  Cytolysis
• What does it mean for a plant cell to be turgid?

  It has taken in too much water
• What happens to cells in a hypotonic solution?

  They become turgid
• What is the role of the cell wall in plant cells?

  It prevents bursting when turgid
• What is the state of cells in an isotonic solution?

  They are flaccid
• What occurs during plasmolysis in plant cells?

  Membrane pulls away from cell wall