Cellular Respiration  Glycolysis, Krebs cycle, Electron Transport 3D Animation

Cellular Respiration Glycolysis, Krebs cycle, Electron Transport 3D Animation

how do you turn that bite of food into a chemical that a cell can recognize and use as energy the first step is altering the food into its component chemical compounds and then getting those molecules into yourself that process is called digestion once inside yourself the process of turning that bite of food into useful energy by cellular respiration begins the process of digestion results with carbohydrates and other molecules being removed from the consumed food and transported into the bloodstream from there nutrients like the carbohydrate glucose will leave the bloodstream through a capillary wall and enter a tissue cell once inside the cell cellular respiration will completely oxidize the glucose molecule releasing high-energy electrons the overall goal is to make ATP a storage form of energy for most cells cellular respiration is a four stage process that begins with glycolysis glycolysis literally means splitting sugars and it is the first step of cellular respiration occurring in the cytoplasm of the cell glycolysis consists of two distinct phases and energy investment phase and an energy harvesting phase in the energy investment phase two ATP molecules transfer energy to the glucose molecule forming a six carbon sugar dye phosphate molecule this molecule splits and the energy harvesting phase begins during this phase the two three carbon molecules are converted to pyruvate and ATP is formed glycolysis is a ten step reaction that involves the activity of multiple enzymes and enzyme assistants in the process a net of two molecules of ATP two molecules of pyruvate and two high energy electron carrying molecules of NADH are produced when oxygen is present the pyruvate molecules and NADH enter the mitochondria and the next stage of cellular respiration begins the next stage of cellular respiration involves the movement of pyruvate into the mitochondria where it undergoes oxidation each pyruvate molecule is converted into a compound called acetyl co a in the process of pyruvate oxidation electrons are transferred to nad producing NADH and a carbon is lost forming carbon dioxide the next stage is the citric acid cycle also called the Krebs cycle here acetyl co a will bind with a starting compound called oxaloacetate and through a series of enzymatic redox reactions all carbons hydrogen’s and oxygens in pyruvate ultimately end up as carbon dioxide and water the pathway is called a cycle because oxaloacetate is the starting and ending compound of the pathway for every glucose that enters glycolysis the cycle completes twice once for each molecule of pyruvate that entered the mitochondria during pyruvate oxidation and the citric acid cycle a net of eight NADH to fadh2 to ATP and six co2 are produced for each glucose molecule in order to understand how the majority of the energy is produced by aerobic respiration we need to follow the nadh and fadh2 molecules to the next stage the electron transport chain the electron transport chain is a series of membrane bound carriers in the mitochondria that pass electrons from one to another as the electrons are transferred between the membrane proteins the cell is able to capture energy and use it to produce ATP molecules proteins in the chain pump hydrogen ions across a membrane when the hydrogen ions flow back across the membrane through an ATP synthase complex ATP is synthesized by the enzyme ATP synthase oxygen acts as the terminal electron acceptor by accepting electrons oxygen is reduced to form water a byproduct of the electron transport chain all the high-energy electron carriers from the previous stages of cellular respiration bring their electrons into the chain from this the bulk of ATP from the entirety of cellular respiration is produced a net of 32 to 36 ATP in summary we have seen how the four stages of cellular respiration are responsible for converting the energy found in the glucose molecule into ATP the energy battery of the cell on average thirty six ATP molecules are produced per glucose molecule that enter the cell in the process of producing ATP oxygen is brought in from the bloodstream to be the final electron acceptor in the electron transport chain and the carbon dioxide that is produced as a by-product is released the goal of cellular respiration is to transfer the energy from the food that we eat daily into ATP that our bodies can use this process starts with the eating of a snack or meal and ends with capturing the energy from the complete breakdown of the nutrients into energy and carbon dioxide

David Anderson

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100 thoughts on “Cellular Respiration Glycolysis, Krebs cycle, Electron Transport 3D Animation

  1. Estephanie Fernández fleites says:

    U saved my grade…thank uuuuuuu

  2. Booga04 Minecraft says:

    They should just play this in school instead of trying to explain it with those boring textbooks that nobody wants to read.

  3. Yayrin says:

    The citric cycle produces 6 NADH, not 8 NADH for 1 glucose/2 pyruvates.

  4. DAHIYA says:


  5. yousef omar says:

    Thank you very mach for learning me


    Good job

  7. Anita Naik says:

    I had never understood this topic thanks solo much. PC. Do keep making those

  8. tinimars says:


  9. Rajeera Geleta says:

    The visuals helped allot

  10. Katie says:

    This was a really helpful guide to understand cellular respiration. Thanks!

  11. D T says:

    WOW!😁😁thank you

  12. Mihail Brasioli Lebedev says:


  13. F. Kich. says:

    i still don't understand, sigh

  14. Ashi saxena says:

    Thankyou so much….

  15. She's my President says:

    Good thing We didnt split the atom during glycolysis We'd EXPLODE!!

  16. Hariver Hoang says:

    Thank you so much!! That's useful! Can I share in my youtube channel?

  17. jaja says:


    C6H12O6 + 6O2 -> 6CO2 + 6H2O + ATP

    Cellen använder Glukos och syre för att tillverka ATP.
    CO2 och vatten som biprodukt.


    En anaerob reaktion händer i cytoplasman, ATP binds till glukos och bildar en 6 kol atom. Molekylen är ostabil o splittras till två 3 kol pyrodruvsyror. Bildar 2 ATP och 2 NADH (koenzym som kan bära elektorner)

    Citronsyracyckel/ Krebs cyckel:


    Aerob reaktion i yttre membranen i mitokondrien där Pyrodruvsyran oxideras till Acetyl-CoA. Acetyl CoA binder med en 4 kol molekyl Oxaloacetat. Det sker redox reaktioner och kolen syren och väten bildar CO2 vatten och energi. och det produceras 6 NADH, 2 FADH, 2 ATP och CO2. Acetyl-CoA blir slutprodukten och är startprodukten. För varje glukos går cyckeln 2 gånger.


    Aerob process i inre membranen av mitokondria. NADH och FADH2 från Glykolys och Citronsyracykeln och deras elektroner fortsätter till inre membranen och tas upp av proteiner, proteinerna pumpar protoner till yttre membranen och används för att bilda en protongradient. Syre från blodet tar till slut emot elektronerna och det bildas h2o. Gradienten balanserad ut till slut av ATP syntas enzymet där ADP kombineras med fosfat och ~34 ATP och H2O bildas.

  18. Sean Miller says:

    Most helpful video

  19. Ammarah Tajammul says:

    no podia entender una palabra

  20. Muskan grewal says:

    Thanks, It made a lot more easier to understand.

  21. Ali Farsat says:

    This is very useful for me more than a teacher thank you

  22. Dana Sultan says:

    I did not get it until now

  23. RAJ RAJPOOT says:

    easily and more reliable than textbook

  24. Sahid Ahmed says:

    Thanks for your help from Al Habib Ahmed from Manipur India

  25. Ybhfvh Tvhh says:

    Greatest video ever that l see it about this subject🌷

  26. Alexiz Escobar says:

    I am fucked

  27. Alexiz Escobar says:

    I am fucked

  28. Caril-Ann Dollanganger says:

    Oxidative phosphorylation or electron transport chain,however you wanna call it, it produce 34 molecules of ATP not 32,so as a summary we got 38 ATP molecules,2 from glycolysis,2 from Krebs cycle and 34 from Oxidative phosphorylation.Thats how they teach it in med schools here.

  29. Pokkerdott Pinky says:

    Excellent thank u❤️❤️❤️

  30. P P Latey says:

    Amazing !!! Even more amazing are the minds who unravelled it.

  31. JayJay Solana says:

    i am a mitochondria

  32. 春梅 says:

    3:51 electron chain

  33. gayathri G says:

    Omg this so helpful

  34. HINAKS Swati says:

    Your lecture was quite helpful……thanks…..

  35. Dr vimal Katarmal says:


  36. Mohammad Gharib says:

    I hate you mr.kreps😠😠😡 very much

  37. Raya Kelley says:

    fun, fun

  38. Amazing videos says:

    Thank u sooo much

  39. Travis-Colt Gray says:

    Wait, wait, wait…. so the cops knew internal affairs were setting them up all along?

    Oh sorry, when I get confused I tend to make up my own story plot.

  40. Syed Navaid says:

    This is the best educational channel on youtube i have visited . It helps me alot to understand my subjects . Specially the animation . Keep doing the good work

  41. Camille Gamayao says:


  42. Melia A says:

    did the closed captions really have to be covered up when you pause the video 9/10

  43. Sandeep Kumar says:


  44. Heeynas' Zoldane says:

    Can I have a copy of the subtitles?

  45. Osama Abunar says:

    The best explanation for cellular respiration

  46. Hideo YT says:

    Pray for mi test tomorrow hshshs

  47. thea loves says:


  48. AA 9261 says:

    3:55 ima go

  49. Riya Malk says:

    Tell in hindi also

  50. chuu baby says:

    Where did FADH came from

  51. solar flare says:

    Is the Krebs cycle net correct? My biology teacher told me it isn't.

  52. torturaxlc says:

    I’m confused 😩

  53. Ishwar chavan says:

    Thank you

  54. صاحبة الهدوء says:

    there is some thing wrong in kreb,s cylce 😱

  55. Tanveer wali says:

    Nice explanation 👌👌

  56. Clint James De Paz says:

    Me: Every food we eat has chemicals.

    Other people: Damn governments putting poison to our foods.

  57. Some Dude says:

    I hate fucking biochemistry . I’ve been trying to understand this cellular respiration for a lot of time. Thank you for the video. But i still don’t get it! All that headache about cellular respiration, citric acid cycle , oxidative phosphomyass. Oooh I’m going to kill my ass

  58. Radan Safinia says:

    who ever you are, god keep you safe forever <3

  59. Suci Nur Cahyani says:

    Bismillaah. Excuse me Sir, let me introduce my self, my name is Suci Nur Cahyani, I from Sebelas Maret University, Indonesia. Excuse me, I want to ask permission to use your video to my project. I will modification your video to game. I will use this game to teach capter Metabolisme in my Biologi class.. i am so sorry about my bad english language. I hope you can understand my message and you give me permission to edit your video. Thanks a lot, Sir :))

  60. Soomar Khdirat says:

    mitochandria is the powerhouse of the cell

  61. Ultra Whale says:

    Yung di ka nakinig sa teacher mo tapos quiz nyo nw bukas so nandito ka

  62. Tmillchr says:

    That's strange, I thought life was assembled at random, with no purpose or goal. Call me crazy, but even the molecules know what to do and when to do it. Each molecule seems to have orders to do certain things with certain other molecules to reach a desired goal. What's that all about?

  63. Toyga _Game says:

    La carotte, Daucus carota subsp. sativus, est une plante bisannuelle de la famille des apiacées (aussi appelées ombellifères), largement cultivée pour sa racine pivotante charnue, comestible, de couleur généralement orangée, consommée comme légume. La carotte représente après la pomme de terre le principal légume-racine cultivé dans le monde[2]. C'est une racine riche en carotène. La carotte est un tubercule d'hypocotyle, c'est-à-dire formé pour partie par l'hypocotyle et pour l'autre partie par la région supérieure de la racine, qui se sont tubérisés

  64. rg resres says:

    so helpful


    Hello sa mga taga-UST SHS DIYAN

  66. Meow Nalisa says:

    Sh*t .. Tomorrow is my report and my brain cells are still confused

  67. Nightcore JJDC says:


  68. Jan Nicole Nieves says:

    So tired rn, my brain started lagging halfway through. Welp, looks like imma fail our finals tomorrow

  69. Ayah Alamoudi says:

    Thx this really helps

  70. Erica Ramos says:

    Hi sa mga STEM studs skske

  71. Oxi Clean says:

    I know I’m not the only one who has a test tomorrow

  72. StillLonging says:


  73. Elijah Ken says:

    my brain retains this more than the fucking stuff that we cant even draw in arts class.

  74. cliff cox says:

    wow, bad memories from high school.

  75. by the river says:

    oh my god

  76. Jacob Clemente says:

    Me: Okay, the test is tmr and I haven't watched the video yet. better get it done
    This Video: plays

    Excuse me what

  77. Marwa mariwan says:

    Yes , very good

  78. Daryl B. Sledge says:


  79. PorMeJuice YT says:

    I like the animation! It helps me visualize the process keep up the good work

  80. PorMeJuice YT says:

    1:40 what is the yellow sphere called?

  81. Milk With Cereals says:

    Thank you so much.. Great video To help me In my exam next Week..

  82. Milk With Cereals says:


  83. Rajani Wolf says:

    These videos are so helpful, especially when you get a professor that doesn't know what they're talking about or how to teach.

  84. PJ Quinn says:

    What’s up Mikey Lynch

  85. Olaoluwa Akomolede says:

    Who has to do a test for this in 9th grade!!!

  86. Olaoluwa Akomolede says:

    The comments here are like the questions section in Khan Academy

    *Except for the rants about having a test tomorrow
    BTW I have one too👌

  87. SoulleMyst says:

    This sucks

  88. ara dar masy7a says:

    I have test tomorrow pray for me!!! Please

  89. Seema Ranjan says:


  90. Jonathan Guzik says:

    at 4:19, what are the blue and red molecules

  91. TehRainbowNoob says:

    Isn't it 10 NADH not 8?

  92. Ryuusei says:

    I am so stressed I'm going to fail tomorrow 😭

  93. Juan Carlos Hernandez Montaño says:

  94. rumeysa mert says:

    this was very helpful thank you.

  95. aisyah septiani says:

    Thanks for making thiz video, i hope i can pass the test next week:))

  96. Alex Wetmore says:

    Jesus I hate biology tests watch me fail tomorrow

  97. Lyric Melody says:

    Such a great video!! Explains everything perfectly!!

  98. Divya Mishra says:

    Amazing ….

  99. Bibo Monster says:

    I thought we'd have a yield of 38 ATP molecules by the end of cellular respiration..
    10 NADH
    2 FADH2
    4 ATPs
    Am I counting incorrectly?!

  100. Multitasking youtuber says:

    Ekdam bhand

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