osmosis

• What is osmosis?

  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
• What happens to an animal cell placed in pure water?

  Water moves into the cell by osmosis, causing it to expand and potentially burst
• What is the effect of placing an animal cell in a concentrated solution?

  Water moves out of the cell by osmosis, causing the cell to shrink
• What occurs when a plant cell is placed in pure water?

  Water moves into the cell by osmosis, causing it to become turgid
• Why does a plant cell not burst when it becomes turgid?

  The cell wall prevents the plant cell from bursting
• What happens to a plant cell placed in a concentrated solution?

  Water moves out of the plant cell by osmosis, causing it to 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).
  • Water leaving causes flaccidity (shrinking).
• What is the term used when a plant cell becomes swollen due to water intake?

  Turgid
• What is the term used when a plant cell shrinks due to water loss?

  Flaccid
• What is a partially permeable membrane?

  A membrane that allows some molecules to pass through but not all
• What do scientists say about dilute solutions in terms of water concentration?

  They contain a high concentration of water
• What do scientists say about concentrated solutions in terms of water concentration?

  They contain a low concentration of water
• What is the net movement of particles in diffusion?

  From an area of higher concentration to an area of lower concentration
• What is the main focus of the video discussed in the study material?

  To describe osmosis and its effects on animal and plant cells
• What is the relationship between osmosis and the concentration of solutions?

  Osmosis involves the movement of water from areas of high water concentration to areas of low water concentration