Q.1
Osmosis takes place in which of the following?
  • Roots
  • Hair
  • Soil
  • The atmosphere
Q.2
In living organisms, the partially permeable membrane is the...
  • nucleus
  • cell membrane
  • chloroplast
  • bacterium
Q.3
Dilute means...
  • a little solute and a lot of water
  • a lot of solute and little water
  • concentrated
  • the same
Q.4
Plants use osmosis to prevent...
  • respiration
  • photosynthesis
  • wilting
  • excretion
Q.5
Water molecules move from...
  • dilute to a more dilute solution
  • dilute to a more concentrated solution
  • concentrated to a more dilute solution
  • concentrated to a less concentrated solution
Q.6
Osmosis is the movement of which molecules?
  • Oxygen
  • Hydrogen
  • Any
  • Water
Q.7
Osmosis takes place in this important structure.
  • Alveolus
  • Villus
  • Nephron
  • Artery
Q.8
Potato cylinders are put into a strong sugar solution. After an hour they are...
  • bigger
  • smaller
  • the same
  • sweet potato
Q.9
Why is osmosis not the same thing as diffusion?
  • A partially permeable membrane is needed for osmosis
  • A partially permeable membrane is needed for diffusion
  • Osmosis involves oxygen only
  • Diffusion involves water only
Q.10
Water molecules move...
  • down the concentration gradient
  • along the concentration gradient
  • against the concentration gradient
  • nowhere
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