Cell Biology

• What is diffusion?

  The spreading of particles from high to low concentration
• What does diffusion result in?

  Net movement from high to low concentration
• According to the text, what state(s) of matter does diffusion occur in?

  Gas and solution
• What describes the motion of particles in a solution or a gas?

  Random movement
• In diffusion, what is the 'net' movement of particles?

  Overall movement
• What determines the direction of net movement in diffusion?

  Concentration gradient
• What is diffusion?

  The spreading out of molecules in a liquid or a gas from an area of higher to an area of lower concentration.