Difference between osmosis and diffusion

• What is diffusion?

  Movement of particles from high to low concentration
• How does diffusion occur?

  It occurs down a concentration gradient
• In which mediums can diffusion happen?

  Solid, liquid, or gas
• Does diffusion require a membrane?

  No, it doesn't necessarily involve a membrane
• What is osmosis?

  Movement of water molecules through a membrane
• What type of diffusion is osmosis?

  It is a specific type of diffusion
• From where to where do water molecules move in osmosis?

  From higher water potential to lower water potential
• What type of membrane does osmosis involve?

  Partially permeable membrane
• What can pass through the membrane in osmosis?

  Only water molecules can pass through
• What are the key differences between diffusion and osmosis?

  • Diffusion: general movement of any particles
  • Osmosis: specific movement of water molecules
  • Diffusion does not require a membrane
  • Osmosis requires a partially permeable membrane