Membranes allow for selective transport of molecules across cells. They are composed of a phospholipid bilayer with embedded proteins. Transport across membranes can occur through diffusion, osmosis, or active transport using carrier proteins and cellular energy. Membrane proteins also help with functions like cell signaling and identification.

1. Membranes and Transport

2. reactions
movement
http://www.google.ca/imgres?q=membrane+transport&hl=en&sa=X&rls=com.microsoft:en-us:IESearchBox&tbm=isch&prmd=imvnsb&tbnid=OONcuo_AyV0jxM:&imgrefurl=http://en.wikibooks.org/wiki/Human_Physiology/Cell_physiology&docid=JG7EjMv1kau7vM&w=702&h=371&ei=VOmETouyOfPYiAK9sXQDA&zoom=1&iact=hc&vpx=189&vpy=151&dur=78&hovh=163&hovw=309&tx=173&ty=95&page=5&tbnh=72&tbnw=136&start=32&ndsp=8&ved=1t:429,r:5,s:32&biw=792&bih=454

3. polar

4. GLYCOPROTEIN
GLYCOLIPID
Cliff’s AP Biology
http://www.youtube.com/watch?v=ULR79TiUj80

5. Membrane Features
all
some
living cell membrane
http://www.google.ca/imgres?q=selectively+permeable&hl=en&sa=X&rls=com.microsoft:en-us:IESearchBox&tbm=isch&prmd=imvns&tbnid=5N2zjwO4LQV47M:&imgrefurl=http://www.columbia.edu/cu/psychology/cours
es/1010/mangels/neuro/neurosignaling/neurosignaling.html&docid=F0l6mMXF7d9EyM&w=150&h=150&ei=m_OETs7EIjQiALrOi5DA&zoom=1&iact=hc&vpx=263&vpy=196&dur=2687&hovh=120&hovw=120&tx=64&ty=93&page=1&tbnh=102&tbnw=1
14&start=0&ndsp=8&ved=1t:429,r:1,s:0&biw=792&bih=454

6. Water, carbon dioxide
oxygen
glucose
Na+ (sodium),
H+ (hydrogen)
http://www.google.ca/imgres?q=selective+permeability
&hl=en&sa=X&rls=com.microsoft:en-us:IESearchBox&tbm=isch&prmd=imvns&tbnid=6ioQOUcU9j
5KOM:&imgrefurl=http://environmentsofcells.wikispac
es.com/&docid=FcVwGWQ9v5y_fM&w=500&h=379&ei
=KPSETvCnDaXZiAKcneGoDA&zoom=1&iact=hc&vpx=21
0&vpy=77&dur=11188&hovh=195&hovw=258&tx=129
&ty=113&page=1&tbnh=114&tbnw=150&start=0&ndsp
=7&ved=1t:429,r:1,s:0&biw=792&bih=454

7. http://www.google.ca/imgres?q=membrane+proteins&hl=en&sa=X&rls=com.microsoft:en-us:IESearchBox&tbm=isch&prmd=imvnsb&tbnid=1Jd0kFsS0G4qeM:&imgrefurl=http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/C/CellMembranes.html&docid=L1N4lp3KVtCd3M&w=450&h=300&ei=MP
CETpuaJ-bbiALGlqXHDA&zoom=1&biw=792&bih=454&iact=rc&dur=187&page=1&tbnh=87&tbnw=130&start=0&ndsp=8&ved=1t:429,r:7,s:0&tx=81&ty=20

8. Hydrophilic
amphipathic
hydrophobic
hydrophilic

9. charged
polar
NO ATP required. Movement is from HIGH
concentration to LOW concentration.
ATP
ATP required. Movement is from LOW
concentration to HIGH concentration.
http://www.youtube.com/watch?v=GFCcnxgXOhY

11. 3 Types of Glycoproteins:
identity
anchors
Attach
binding sites
receptor
enzyme
relay
responses
http://www.google.ca/imgres?q=pygmy&hl=en&sa=X&rls=com.mi
crosoft:en-us:IESearchBox&tbm=isch&prmd=imvns&tbnid=JDLG4Crcfay0oM:&img
refurl=http://night-caffe.com/people/36-people/53-african-tribespygmiespeople&docid=HqophVn7JzxI6M&w=450&h=295&ei=8v2ETryZJMH
hiAKe25ivDA&zoom=1&biw=792&bih=450&iact=rc&dur=281&pag
e=1&tbnh=77&tbnw=117&start=0&ndsp=10&ved=1t:429,r:7,s:0&t
x=47&ty=49

12. 3 Types of Transmembrane Proteins
Active
team

13. hooked
http://www.google.ca/imgres?q=interc
ellular+junction&hl=en&sa=X&rls=com.
microsoft:en-us:IESearchBox&tbm=isch&prmd=imvns&tb
nid=YyI3Tl_1CxABiM:&imgrefurl=http:/
/medicaldictionary.thefreedictionary.com/Inter
cellular%2Bjunctions&docid=UbA7Fees
A06PRM&w=250&h=195&ei=YQGFTrC
DOsnXiAKQxcypDA&zoom=1&iact=hc&
vpx=96&vpy=158&dur=609&hovh=156
&hovw=200&tx=121&ty=117&page=1
&tbnh=117&tbnw=151&start=0&ndsp=
15&ved=1t:429,r:0,s:0&biw=1024&bih=
596

14. electrons
http://www.google.ca/imgres?q=electron+transfer+proteins&hl=en&sa=X&rls=com.microsoft:en-us:IE-SearchBox&tbm=isch&prmd=imvns&tbnid=G1jVVHgi3w8TM:&imgrefurl=http://course1.winona.edu/sberg/241f08/Lecnote/Photosyn.htm&docid=VOdxWzEYKXc80M&w=697&h=419&ei=twGFTu3VK6XTiALx8ZjHDA&zoom=1&iact=hc&vpx=687&vpy=255&dur=31&hovh=174&hovw=290&tx=179&ty=101&pag
e=7&tbnh=91&tbnw=151&start=105&ndsp=18&ved=1t:429,r:17,s:105&biw=1024&bih=596

15. rigidity
restrains
prevents
http://www.google.ca/imgres?q=cholesterol+in+animal+cells&hl=en&sa=X&rls=com.microsoft:en-us:IESearchBox&tbm=isch&prmd=imvnsfd&tbnid=fDStXLMqy_WotM:&imgrefurl=http://www.wannabebig.com/forums/showthread.php%3F143766-Paleo-in-modern-times-andbodybuilding/page3&docid=EALeprhvtxfA3M&w=800&h=329&ei=MASFTqC4KKTXiALZ1dy5DA&zoom=1&biw=1024&bih=596&iact=rc&dur=78&page=2&tbnh=61&tbnw=148&start=15&ndsp=19&ved=1t:429,
r:18,s:15&tx=38&ty=31

16. Carbohydrate
markers
oligosaccarides
glycolipids
Ex. Stem cells

17. Transport Mechanisms

18. inside
outside
Random
away

19. http://www.google.ca/imgres?q=concentration+gradient%5C&hl=en&sa=X&rls=com.microsoft:en-ca:IESearchBox&rlz=1I7TSCA&tbm=isch&prmd=imvnsfd&tbnid=tdH6C8opV6vTWM:&imgrefurl=http://kentsimmons.uwinnipeg.ca/cm1504/membranefunction.htm&docid=kn
6GxWvR60SVLM&w=741&h=600&ei=LP6ITvbINuXiiAKs9KGlDA&zoom=1&iact=hc&vpx=613&vpy=190&dur=4024&hovh=202&hovw=250&tx=111&ty=64&page=1&tbnh=15
6&tbnw=193&start=0&ndsp=10&ved=1t:429,r:2,s:0&biw=1280&bih=555

20. DOWN
UP (AGAINST)
Energy (ATP)
NO added energy
Diffusion
Osmosis
Phagocytosis
Facilitated
Diffusion
Pinocytosis
Active
Transport

21. Diffusion

22. http://www.google.ca/imgres?q=solute+solvent+solution&hl
=en&sa=X&rls=com.microsoft:en-ca:IESearchBox&rlz=1I7TSCA&biw=1280&bih=555&tbm=isch&prm
d=imvnsfd&tbnid=ki5mLhGb7aQJPM:&imgrefurl=http://wate
r.me.vccs.edu/courses/env211/lesson8_3.htm&docid=TOb2g
i68vEUpnM&w=146&h=170&ei=eBuJTpaFOujciALe4IS6DA&z
oom=1&iact=hc&vpx=899&vpy=299&dur=3292&hovh=136&
hovw=116&tx=87&ty=107&page=2&tbnh=136&tbnw=116&st
art=18&ndsp=10&ved=1t:429,r:3,s:18

23. Process of diffusion
4-23

24. energy
down
increases
increases
faster
selectively

25. water
Of water

27. http://www.google.ca/imgres?q=hypertonic+hypotonic+isotonic&hl=en&rls=com.microsoft:en-ca:IESearchBox&rlz=1I7TSCA&biw=1280&bih=555&tbm=isch&tbnid=iCysaWNCBENCRM:&imgrefurl=http://www.mun.ca/biology/Osmosis_Diffusion/tutor2.html&docid=JwVTZInEsqpODM&w=41
8&h=169&ei=2B2JTrLXE4zbiALm3dSgDA&zoom=1&iact=hc&vpx=903&vpy=145&dur=2355&hovh=135&hovw=334&tx=215&ty=67&page=10&tbnh=85&tbnw=211&start=106&ndsp=12&ved=1
t:429,r:11,s:106

28. Net movement
of water is from
A to B.
A is HYPOTONIC to B B is HYPERTONIC to A
C is ISOTONIC to D
D is ISOTONIC to C

29. http://www.biologycorner.com/bio1/diffusion.html#

30. A
A
B
B
A
B
Add
protein to
side B
Semi-permeable membrane
Equilibrium: osmotic
pressure = hydrostatic
pressure.

31. http://www.youtub
e.com/watch?v=vk5
NFSvp8lY

32. Facilitated Diffusion

33. High to low concentration
(down a concentration gradient.)
carrier
polar
hundreds
energy

34. binding
releasing

35. hydrophilic
specific
http://www.google.ca/imgres?q=neurotrANS
MITTER+BINDING+TO+SODIUM+GATES&hl=en
&sa=X&rls=com.microsoft:en-ca:IESearchBox&rlz=1I7TSCA&tbm=isch&prmd=imv
ns&tbnid=r1r0janwHpXtsM:&imgrefurl=http:/
/www.accessemergencymedicine.com/topicC
ard.aspx%3Ftopic%3Dsodium%2Bchannel%2B
activity%252C%2Bvoltagegated%26rootID%3D51580%26searchSource%
3Dall&docid=NqkLKLOzEYCesM&w=180&h=15
0&ei=_ymJTqOdCYbXiALyt524DA&zoom=1&ia
ct=hc&vpx=507&vpy=201&dur=889&hovh=12
0&hovw=144&tx=107&ty=52&page=3&tbnh=
120&tbnw=144&start=35&ndsp=12&ved=1t:4
29,r:8,s:35&biw=1280&bih=555

36. Active Transport

37. ENERGY
Carrier (transport)
against
steep

38. conformations
inside
Phosphorylation

39. positive
potential

41. 1. H+ pumped out
2. H+ diffuses in with sucrose. Sucrose can only enter with
H+.
http://www.google.ca/imgres?q=sucrose+symport&hl=en&rls=c
om.microsoft:en-ca:IESearchBox&rlz=1I7TSCA&biw=1280&bih=555&tbm=isch&tbnid=
Wiz_AyKUWTXfjM:&imgrefurl=http://www.uic.edu/classes/bios/
bios100/lecturesf04am/lect19.htm&docid=CFN3b259gj6SfM&w=
800&h=600&ei=fjOJTuKJMMjYiALLjM2gDA&zoom=1&iact=hc&vp
x=371&vpy=132&dur=4212&hovh=194&hovw=259&tx=127&ty=
117&page=1&tbnh=103&tbnw=141&start=0&ndsp=25&ved=1t:4
29,r:2,s:0

43. Exocytosis
4-43

44. Phagocytosis
4-44

45. Phagocytosis
Pseudopods
lysosome
lysososome

46. Pinocytosis
4-46

47. Pinocytosis
Non-discriminating

48. Receptor-mediated endocytosis
4-48

49. Receptor-mediated
http://www.google.ca/imgres?q=receptor+mediated+endocytosi
s&hl=en&sa=X&rls=com.microsoft:en-ca:IESearchBox&rlz=1I7TSCA&biw=1280&bih=555&tbm=isch&prmd=i
mvns&tbnid=aPXYAkbavvS7M:&imgrefurl=http://www.thefullwiki.org/Receptormediated_endocytosis&docid=YsD5KBkcHtNOM&w=300&h=224&ei=WBqJTu63MuPWiALGr8m7DA
&zoom=1&iact=hc&vpx=848&vpy=256&dur=3073&hovh=179&h
ovw=240&tx=127&ty=138&page=2&tbnh=150&tbnw=201&start
=11&ndsp=11&ved=1t:429,r:3,s:11
discriminating

50. bulk
receptor proteins

51. Read and make notes on
Chapter 4. Read critically
and take selective notes.