diffusion

Cards (15)

  • What is diffusion?
    Net movement of particles from high to low concentration
  • What happens to molecules over time if left alone?
    They spread out due to random motion
  • What is the definition of net movement in diffusion?
    Movement of all particles considered together
  • In what states of matter can diffusion occur?
    Both gases and liquids
  • What happens when you spray perfume in a room?
    It diffuses across the whole room
  • What occurs when food coloring is added to water?
    It diffuses until the water is the same color
  • What type of membranes allow diffusion of some molecules?
    Partially permeable membranes
  • Which molecules can generally diffuse through cell membranes?
    Small molecules like water and glucose
  • Why is diffusion considered a passive process?
    It doesn't require energy from the cell
  • What is the first factor that affects the rate of diffusion?
    The concentration gradient
  • How does a larger concentration gradient affect diffusion?
    It increases the rate of diffusion
  • What effect does temperature have on diffusion?
    Higher temperatures increase the rate of diffusion
  • How does surface area influence the rate of diffusion?
    Larger surface area increases the rate of diffusion
  • What are the three factors that affect the rate of diffusion?
    • Concentration gradient
    • Temperature
    • Surface area
  • How does a larger surface area facilitate diffusion?
    • More particles can fit around the surface
    • More particles can diffuse in and out simultaneously