Osmosis

    Cards (13)

    • What is osmosis?
      Osmosis is the diffusion of water from a dilute solution to a concentrated solution through a partially permeable membrane.
    • How does osmosis differ from diffusion?
      Osmosis specifically refers to the movement of water, while diffusion refers to the movement of particles in general.
    • What happens to an animal cell placed in pure water?
      The cell will expand and may burst due to water moving in by osmosis.
    • What is the effect of placing an animal cell in a concentrated solution?
      Water will move out of the cell by osmosis, causing the cell to shrink.
    • What is a characteristic of a dilute sugar solution?
      A dilute sugar solution contains a high concentration of water.
    • What happens to a plant cell when placed in water?
      The plant cell will expand due to water moving in by osmosis, becoming turgid.
    • Why does a plant cell not burst when it becomes turgid?
      The cell wall prevents the plant cell from bursting when it becomes turgid.
    • What occurs when a plant cell is placed in a concentrated solution?
      Water moves out of the plant cell by osmosis, causing the cell to shrink and become flaccid.
    • What are the key points about osmosis in animal and plant cells?
      • Osmosis is the diffusion of water through a partially permeable membrane.
      • In animal cells:
      • Water entering causes expansion and potential bursting.
      • Water leaving causes shrinking.
      • In plant cells:
      • Water entering causes turgidity (swelling without bursting).
      • Water leaving causes flaccidity (shrinking).
    • What is the role of a partially permeable membrane in osmosis?
      A partially permeable membrane allows water molecules to pass through but not sugar molecules.
    • How do scientists describe concentrated solutions in terms of water concentration?
      Concentrated solutions contain a low concentration of water.
    • What is the effect of osmosis on the cytoplasm of cells?
      The cytoplasm of cells is a relatively concentrated solution, meaning it has a low concentration of water.
    • What happens to the concentration of water during osmosis when comparing two solutions?
      Water moves from an area of higher concentration to an area of lower concentration.
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