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6. Because water molecules move randomly, it is a ___ movement?

  • Net
  • Slow
  • Small
  • Fast

7. What is the definition of Osmosis?

  • The movement of molecules across a partially permeable membrane from a region of high concentration to a region of low concentration.
  • The movement of water from a region of low concentration to a region of high concentration
  • The movement of water molecules across a partially permeable membrane from a region of high water concentration to a region of low water concentration.
  • The movement of water through solids walls from a region of medium elephant conctration to a region of low orange concentration

8. Root hairs use ___ to absorb water and minerals?

  • Diffusion
  • Active transport
  • Osmosis
  • Electricity

9. What does the trachea split into?

  • Intercostal muscles
  • Bronchi
  • Alveoli
  • Bronchioles

10. Which of these is not a way exchange surfaces are adapted to maximise effectiveness?

  • Lots of blood vessels nearby
  • Lots of mitochondria
  • Large surface area
  • They are thin

11. Where are the Villi?

  • The heart
  • The lungs
  • The small intestine
  • The gut

12. Where else does active transport happen?

  • The gut
  • The thorax
  • The abdomen
  • The testicles