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AQA GCSE Biology - Diffusion and osmosis

Quiz by Whittle

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12 questions
Show answers
  • Q1
    Diffusion is...
    the movement of particles from an area of LOW concentration to an area of HIGH concentration
    the movement of particles from an area of HIGH concentration to an area of LOW concentration
    30s
  • Q2
    The difference in concentration between two areas is called the...
    rate of diffusion
    concentration gradient
    temperature
    concentration difference
    30s
  • Q3
    What effect will an increase in temperature have on the rate of diffusion?
    Decrease the rate
    No effect
    Increase the rate
    30s
  • Q4
    Which statement is TRUE about oxygen in the lungs?
    Oxygen concentration in the lungs and the blood is the same
    Oxygen is in HIGHER concentration in the lungs compared to the blood
    Oxygen is in LOWER concentration in the lungs compared to the blood
    30s
  • Q5
    The diffusion of oxygen and carbon dioxide in the lungs is know as....
    gas mobility
    gas exchange
    respiration
    gas diffusion
    30s
  • Q6
    Cells that are adapted to make diffusion faster and easier often have..
    many mitochondria
    folded membranes
    small surface area
    no nucleus
    30s
  • Q7
    A cell is placed in a solution that is MORE DILUTE than the cell. We say the solution is:
    Isotonic
    Hypotonic
    Hypertonic
    30s
  • Q8
    A cell is placed in a solution that is MORE CONCENTRATED than the cell. We say the solution is:
    Isotonic
    Hypotonic
    Hypertonic
    30s
  • Q9
    A cell is placed in a solution that is the SAME concentration as the cell. We say the solution is:
    Hypertonic
    Hypotonic
    Isotonic
    30s
  • Q10
    Osmosis is the movement of which type of molecule?
    Water
    Sugar
    salt
    Solutes
    30s
  • Q11
    For osmosis to happen, there must be...
    a partially-permeable membrane
    a impermeable membrane
    no membrane
    a fully permeable membrane
    30s
  • Q12
    In osmosis, water moves from...
    a more dilute solution to a more concentrated solution
    a more concentrated solution to a more dilute solution
    30s

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