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Electron Transport Chain Animation Overview (Chemiosmosis)

  • Written by Ashburton Taxis | 25 Comments25 Comments Comments
    Last Updated: September 23rd, 2010

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25 Comments

  1. #1
    jessicalilac
    September 23rd, 2010 at 3:58 pm

    my life is still screwed D:

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  2. #2
    kikiCARIBBEANGirl
    September 23rd, 2010 at 4:09 pm

    omg! thank god for u. thank you thank you thank u 4 this. they should use this in class lol

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  3. #3
    lamalovah
    September 23rd, 2010 at 4:47 pm

    why is it NADH and not NADH + H+ ???

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  4. #4
    jvodecali
    September 23rd, 2010 at 5:11 pm

    thanks so much! this video really helped!

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  5. #5
    charlie177
    September 23rd, 2010 at 5:30 pm

    @LyrikalButterfly no, thank FSM :)

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  6. #6
    sillydillydokieo
    September 23rd, 2010 at 5:45 pm

    actually, i thought about it more…. the entropy must decrease too much, overcoming the release of energy needed for the gibbs free energy or something to be favorable for spontaneity. right?

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  7. #7
    sillydillydokieo
    September 23rd, 2010 at 6:16 pm

    i have never understood why it takes energy to make ATP from ADP. adding a third phosphate should be like making a bond, which is exothermic. why doesn’t this occur spontaneously?

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  8. #8
    23crazy23
    September 23rd, 2010 at 7:03 pm

    @DrMrCesar thats exactly what i said.. except im more precise.. 32 are made due to NADH being 2.5 atps and FADH being 1.5 atps

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  9. #9
    DrMrCesar
    September 23rd, 2010 at 7:12 pm

    @23crazy23 somewhere between 30 and 36 ATPs are produced by the oxidative phosphorylation of the 10 NADH and 2 succinate molecules made by converting one molecule of glucose to carbon dioxide and water. font: wikipedia

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  10. #10
    DrMrCesar
    September 23rd, 2010 at 7:32 pm

    it’s so much easier and fun studying on youtube :D

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  11. #11
    23crazy23
    September 23rd, 2010 at 8:18 pm

    34 atp are not produced in oxidative phosphorylation.. its 32!

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  12. #12
    makeuplocalypse
    September 23rd, 2010 at 9:02 pm

    THANK YOU SO MUCH!

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  13. #13
    09wukd1
    September 23rd, 2010 at 9:29 pm

    if i cud kiss u i wud, dude/dudette, u practically saved my life!

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  14. #14
    sara1701
    September 23rd, 2010 at 9:41 pm

    absolutely fab!! have an exam on it tomorrow and was getting more and more confused until i came across this. Thank you!!!

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  15. #15
    elmo841
    September 23rd, 2010 at 10:29 pm

    really amazing and useful! thank you!

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  16. #16
    TheSuperparker4
    September 23rd, 2010 at 10:45 pm

    @LyrikalButterfly thanx 2 technology 4 impacting our knowledge base]

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  17. #17
    SHELLSTER1976
    September 23rd, 2010 at 11:08 pm

    @davishkhkhk after the electrons are transferred through the transport chain they used their stored energy to add a phosphate bond to ADP and create ATP. The chemical bond energy stored in the third phosphate is what the cell uses to perform other energy related functions.

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  18. #18
    MegaMinnieminnie
    September 24th, 2010 at 12:01 am

    @Sleduuschaya did you see that box below the vid where its written ‘Dagger biology-sept. 2000-see an overview of………..’ etcetcetc, you’ll find whatever stufff u need ther, LOL im sending this one freakin’ month after ur midterm :P

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  19. #19
    MegaMinnieminnie
    September 24th, 2010 at 12:43 am

    This video was concept clearing, but unfortunately its not useful for exams

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  20. #20
    wesselbindt
    September 24th, 2010 at 1:29 am

    @LyrikalButterfly Lol you cried in class.

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  21. #21
    davishkhkhk
    September 24th, 2010 at 2:06 am

    i’m not clear how it is called “oxidative ________”…. i mean…. you said it was powered by transfer of electrons to oxygen.

    i thought when reaction is called “oxidative ______”, it means it undergoes oxidation (removal of oxygen, addition of hydrogen and loss of electrons). When the electron is received by the oxygen, it becomes water. So technically it’s a removal of oxygen, isn’t it? so it would be reduction.

    okay… i’m confused. anyone who would like to clear this up for me?

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  22. #22
    Luckyxseven
    September 24th, 2010 at 3:00 am

    simply beautiful :)

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  23. #23
    undrscore08
    September 24th, 2010 at 3:18 am

    @FutureMrsJonas28 phosphate. same ‘P’ in ATP and ADP (which stands for adenosine TRIphosphate and adenosine DIphosphate, so ADP+P=ATP). hope that helps?

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  24. #24
    FutureMrsJonas28
    September 24th, 2010 at 3:33 am

    what does the letter P in the yellow circle mean?

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  25. #25
    SloVidek
    September 24th, 2010 at 4:20 am

    Nice video!
    There is only one mistake; when H+ is returning into intermembrane space, ATP sinthase uses 3 H+ per 1ATP, not 2 – as shown at animation.

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