Diffusion and Osmosis KEY -

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See: Diffusion and Osmosis Crossword


  1. condition achieved when molecules are evenly spread in an area - equilibrium
  2. when a solution as a greater concentration of particles - hypertonic
  3. turns color in the presence of starch - iodine
  4. the engulfing of large particles - phagocytosis
  5. prefix that means "outside" - exo
  6. the diffusion of water - osmosis
  7. active transport will remove ___ ions, while taking in potassium ions - sodium
  8. channel ___ can help move things across the membrane - proteins
  9. organelle that helps remove excess water; ______ vacuole - contractile
  10. the outer boundary of the cell - membrane



  1. type of transport that requires energy - active
  2. when a solution has a lesser concentration of particles hypotonic
  3. type of transport that does not require energy passive
  4. prefix that means "inside" - endo
  5. movement of molecules from high to low concentration - diffusion
  6. a molecule composed of two hydrogens and one oxygen - water
  7. a solution that has an equal amount of particles - isotonic
  8. membranes that let some things through, called selectively ______ permeable
  9. the maintaining of an internal balance - homeostasis
  10. word that means "cell" - cyto
  11. a difference in concentration creates a concentration ______ gradient