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THOSE MAGIC MEMBRANES

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THOSE MAGIC MEMBRANES By Arthur Siebens To the tune of LaBamba/Twist and Shout How do things get into cells? How do things get out? Transport across cell membranes Is ... – PowerPoint PPT presentation

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Title: THOSE MAGIC MEMBRANES


1
THOSE MAGIC MEMBRANES
  • By Arthur Siebens
  • To the tune of LaBamba/Twist and Shout

2
  • How do things get into cells?
  • How do things get out?
  • Transport across cell membranes
  • Is what this songs about.

3
  • Diffusion, osmosis
  • Active transport, too.
  • To make your cells and organs work right
  • The right solutes must get through.

4
  • Oh, those magic membranes
  • In each and every cell
  • Differences between solutes may be small
  • But membrane transporters can tell.

5
  • Oh those magic membranes!
  • They let the good stuff in
  • Get the bad stuff out
  • Through transporters made of protein
  • Theres lots of different routes.

6
  • Membranes are mainly made of lipid
  • Most solutes cant penetrate
  • Proteins transport specific solutes
  • Many change their shape.

7
  • Facilitated diffusion
  • High concentration to low.
  • In cotransport a solute going downhill
  • Moves another uphill as it goes.

8
  • Theres also active transport
  • And that takes energy
  • Solutes are moved uphill
  • Energy from ATP.

9
  • Oh those magic membranes
  • In each and every cell
  • Differences between solutes may be small
  • But membrane transporters can tell

10
  • If solutes cant cross a membrane
  • But water can diffuse
  • It will cross til equilibrium
  • Osmosis is when water moves

11
  • Oh, those magic membranes
  • In each and every cell
  • Differences between solutes may be small
  • But membrane transporters can tell
  • Oh those magic membranes!
  • Yeah!
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