Biology

Biology
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  • what does diffusion mean dad?
  • It's when the molecule moves across the cell membrane
  • can water get in and out of the cell?
  • oh boy here we go
  • Here watch this and we'll find out
  • HOW WATER AND AIR GET INTO CELLS
  • cells have phospholipid bilayors which let in water and air
  • and osmosis is when water is defused the membrane becomes equal
  • facilitated diffusion allows larger molecules to pass through
  • and active transport moves materials against the flow of concentration, but it requires energy unlike the others.
  • hypertonic is when the the water leaves and if its at the same rate it is isotonic
  • correct!!!! 
  • Oh! That makes so much more sense! Thanks Dad
  • No problem. Glad I could help!
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