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Overview of glycolysis | Cellular respiration | Biology | Khan Academy

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  • Опубліковано 5 вер 2024
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    Overview of the basics of glycolysis.
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КОМЕНТАРІ • 681

  • @mariep5227
    @mariep5227 4 роки тому +64

    He was really struggling to write ADP

    • @yanda6732
      @yanda6732 3 роки тому +3

      You're the kind of people who pay attention to the wrong things during class 🤣 7:00

    • @evrist1500
      @evrist1500 2 роки тому +5

      i was laughing so hard ngl

  • @ilaila3504
    @ilaila3504 8 років тому +25

    this is bang on the level needed for my course, human cells at higher biology level SQA. I have spent two days trying to get understanding of this process, so i will pass on a message that if you are struggling like i was - you will need to watch this process over and over again until it starts to make sense. thanks mr khan

  • @JohnFernandez414
    @JohnFernandez414 8 років тому +439

    Salman Khan, once again saving me on the bus ride to school before a test.

    • @Lycroo
      @Lycroo 6 років тому +1

      Me too! XD

    • @anindyahani7773
      @anindyahani7773 6 років тому +2

      John Fernandez he becomes a hero for everyone 😆

    • @veryrisku1119
      @veryrisku1119 5 років тому +1

      @Robert Morgan It's been two years i doubt he'd remember

    • @thesmiler119
      @thesmiler119 4 роки тому +1

      @@veryrisku1119 it's been 1 year i doubt you'd remember!

    • @rkfootball3409
      @rkfootball3409 3 роки тому

      @@thesmiler119 Its been 4 months I doubt you'd remember

  • @Everchanging88i
    @Everchanging88i 14 років тому +14

    Definitely amazing how effective your lessons are.
    Overview i think is one of those things that are really not appreciated by the vast majority of teachers, and yet an understanding of the whole is at the heart of learning, and understanding anything.
    Your lessons because of the clarity they give of a concept, help establish the idea firmly.

  • @khashayarmastoori1
    @khashayarmastoori1 8 років тому +55

    Thank you, you could explain it in 13 minutes but it took my lecturer an hour .

    • @charlotteparker2051
      @charlotteparker2051 5 місяців тому

      No literally my professor spent two hours explaining this

  • @TomoyoTatar
    @TomoyoTatar 10 років тому +46

    FINALLY I UNDERSTAND AFTER HOURS OF WATCHING WEIRD THINGS ON UA-cam

  • @user-mw3vj4ok5b
    @user-mw3vj4ok5b 10 років тому +29

    I really feel like giving him bro fist each time i listened to his video, to thank him. :D

  • @kalef1234
    @kalef1234 10 років тому +74

    He knows science too??!!!! I love khan academy.

    • @Michelleiscul
      @Michelleiscul 5 років тому +8

      Dude knows basically everything, lol.

  • @24jonasluv
    @24jonasluv 13 років тому +11

    I really appreciate your time and effort in making these videos! It really shows your personality! I am an AP BIO student, and my teacher never goes over the material, but thank God for khanacademy! Thank you so much! I hope you realize you are saving millions of high school kids around the world :) Thank You!

  • @thatweirdo93
    @thatweirdo93 13 років тому +6

    My IB bio teacher loves you, he used your videos in class all the time!
    I have my HL exams tomorrow, and because of you I'm so much more comfortable with the material. Thank you, keep it up!

  • @baileyedwards4530
    @baileyedwards4530 10 років тому +283

    The background is white and this hurts me.

  • @mk-vp8bg
    @mk-vp8bg 8 років тому +72

    my bio teacher requires us to know SO much...like how glucose is split into PGAL -.- there are so many steps in between, ahhh so nervous for my test tomorrow.

    • @DinaAwd
      @DinaAwd 7 років тому +2

      Same here

    • @fahtihaishak
      @fahtihaishak 6 років тому +2

      Same ARMY same ...

    • @maggiewang5285
      @maggiewang5285 6 років тому

      mood

    • @DannyBridie
      @DannyBridie 6 років тому +3

      2 yrs later and you’ve passed your nervousness on to me. Yay biology!!!! Yeah!!!

    • @hannahdivic28
      @hannahdivic28 6 років тому

      Sameee test in 2 days and I’ve tried learning so much and am still so confused why is this so complicated

  • @sparkleandshine2494
    @sparkleandshine2494 8 років тому +7

    Understood way better than when my Bio teacher went over it, thank you Khan Academy!

  • @sylvanpine
    @sylvanpine 5 років тому +11

    3:15 "Phosphoglyceraldehyde really challenging my spelling skills here" LOL 😅

  • @arvinian01
    @arvinian01 14 років тому +28

    ETC - means " end of thinking capacity"

  • @jacobvs98
    @jacobvs98 10 років тому +11

    Thank you so much! Better explanation than my teacher's one..

  • @memeyaa3780
    @memeyaa3780 8 років тому +4

    this saves your life when you have a test tomorrow and you dont know what the hell was happening in class, now i can totally slay my test tomorrow -hopefully lol- thank you very much though

  • @TheCanadianGuy08
    @TheCanadianGuy08 14 років тому

    DUDE YOUR A LIFE SAVER thank you soooo much for this vid I've got a bio mid term coming up and my prof is extremely hard to pay attention too these cycle vids are gunna help me so much

  • @hullah3000
    @hullah3000 9 років тому +191

    if you set the speed to 0.5, he sounds drunk lol

  • @Coyoteari
    @Coyoteari 7 років тому

    I learned more from this video than from the hour and a half cell bio lecture I had to sit through on it

  • @smaina1499
    @smaina1499 5 років тому +2

    You just saved my academic life. Thank you. ❤😭

  • @raider968
    @raider968 13 років тому

    I don't know why but my brain shuts off the moment I lay my eyes on a text book.. But thankfully, there's Khan to save the day.

  • @shikinhlm
    @shikinhlm 14 років тому +1

    Hey!!! Thank you so much for the clear explanation. It really helps in my understanding. You teach way better than my lecturer. He spent 1 hour teaching but I don't underdstand anything. Whereas, you only spent about 13 minutes and I am able to understand almost everything. Once again, thank you for being a great teacher. Totally appreciate it. :)

  • @appslover1232123212
    @appslover1232123212 12 років тому +2

    Thank you so much for dedicating your time making these videos. They are so informative and helpful, and it honestly feels great knowing that if there is not a science concept I understand in school, there is usally a video here to help me out!!!

    • @whiteboardanimatorhamna
      @whiteboardanimatorhamna 4 роки тому

      appslover1232123212 he literally never disappoints!! Whenever i find a topic difficult, i come to Khan Academy and the problem is solved :)

  • @CasieLeanne
    @CasieLeanne 7 років тому +1

    For an auditory learner this really helped me understand Glycolysis more, Thankyou.

  • @Bbarbiexox
    @Bbarbiexox 14 років тому

    I have a major micobio exam on monday you have taught me what my instructor attemped for 3 hrs in 15 mins or less you rule!!!

  • @Suh6727
    @Suh6727 12 років тому

    It really helps if you remember the steps before looking at the big picture.

  • @supaahflyy
    @supaahflyy 9 років тому

    explained it miles better than my uni professor. Mind you i ended up just rope learning it and still getting a Distinction but i didnt actually understand the process. Thankyou!

  • @shonaragibson
    @shonaragibson 11 років тому +2

    Have you done a video diving deeper into the enzymes/intermediates/regulation of glycolysis? Would complement this nicely and would help out with the more complex aspects students may need to know. Love the videos, keep em coming! :)

  • @PotionsMaster007
    @PotionsMaster007 8 років тому +19

    omg i might actually pass my medical biochemistry exam, we get a cheat sheet so YES!!!

    • @jesussosa3238
      @jesussosa3238 7 років тому

      Did you know that cheating is Academic Dishonesty XD JK!!!

    • @quon535
      @quon535 5 років тому

      Jesus Sosa lol

    • @rachelcarney8976
      @rachelcarney8976 5 років тому

      can't relate

    • @schrodingerscat1556
      @schrodingerscat1556 3 роки тому

      What happened man??? Did u graduate yet. I find it really interesting to reply to older comments

    • @PotionsMaster007
      @PotionsMaster007 3 роки тому

      @@schrodingerscat1556 lol yea I passed and went on to get 2 more degrees lol

  • @Jade808
    @Jade808 13 років тому

    I have a Biology test tomorrow and I have understood nothing this entire unit until I found your video. I finally get Gylcolysis and Cellular Respiration, so thanks! :)
    ~Jade808~

    • @attiya5471
      @attiya5471 2 роки тому +1

      I was just wondering, I mean if you wanna share about where are you in life Now?

  • @DeejM92
    @DeejM92 12 років тому

    You're one of a kind, and I actually love studying Biochemistry with you even though I despise it. Thank you so much! Hugs from Saudi Arabia (:

  • @hbarker216
    @hbarker216 13 років тому

    Thank you for making this video. I am taking Bio 111 in a Community College, I have shared this video with some of my classmates to help them out. I feel that this explanation is very easy to follow and will help me learn. When taking notes in class this doesn't make sense because while we are writing everything down, there just isn't enough time to understand what I am writing! This way is almost like I am listening to my teach again and I can do so several times until i understand the concept.

  • @Leeanne1967
    @Leeanne1967 13 років тому

    WOW for the first time I actually understand this...a thousand thank you's!!!!!!

  • @Wandering.Studios.
    @Wandering.Studios. 13 років тому

    Words cannot describe how thankful I am for your videos, specifically the cell energy ones.

  • @carmelb99
    @carmelb99 11 років тому +1

    Very helpful. Many people tried to explain it to me, but nobody explained it as well as you did. Thank you so much :)

  • @sKHANcreative
    @sKHANcreative 13 років тому

    KHANS are always the best ........................ Keep it up we all are your students and you are our best teacher

  • @vitalal
    @vitalal 14 років тому

    thank u for this! u so much better a teacher than my actual teacher

  • @SlyPolanie313
    @SlyPolanie313 11 років тому

    This video can and will make you understand Glycolysis. Thank you very much

  • @SharletC
    @SharletC 12 років тому +1

    Really wanna thank Khanacademy for all the videos made. Even my school (Republic Polytechnica, Singapore) uses your video as a resource for us to have better understanding. :)

  • @214aleksandra
    @214aleksandra 13 років тому

    i think you are genius, because you made everything so simple, and nature is simple but other people made it too complicated because they want to feel smart or special, but thats not real point of learning

  • @holfletc
    @holfletc 14 років тому

    I thought I'd never understand this stuff... ever. This is helping immensely. Thanks

  • @jajafelipe19
    @jajafelipe19 11 років тому

    great reviewer for midterms in biology. no need for rereading notes.

  • @Miauwmiauws
    @Miauwmiauws 12 років тому

    He makes me feel that I understand it, unlike the classes I follow. Thank you!

  • @akshta10145
    @akshta10145 12 років тому +2

    This man is my life saver. Thank you!

  • @Bernerker
    @Bernerker 11 років тому +15

    i love how he kept writing adp wrong :P
    aps, ads

  • @SapporoMagokoro
    @SapporoMagokoro 13 років тому

    Watched this video high
    IT ALL MAKES SENSE AND IS SO INTERESTING

  • @yoojunnguyen9866
    @yoojunnguyen9866 12 років тому

    Thank you so much. I have an exam on Tuesday and this is just what I was looking for. It makes a lot more sense then sitting and reading my book for hours trying to figure what the heck is going on.

  • @karolinap1246
    @karolinap1246 7 років тому

    best video on glycolysis I found so far!thank you helped a lot.

  • @jacobthuesen7006
    @jacobthuesen7006 11 років тому

    Great lesson! Biology exam tomorrow and this helped alot! Thanks! You're over 9000 times better to teach than my biology teacher!

  • @PrettiUkhti
    @PrettiUkhti 12 років тому

    im very happy i found your videos. you explain the topic so that i can understand how everything works.very very good!!!

  • @rockett2mann5
    @rockett2mann5 11 років тому

    I watch your videos to study cram... Works everytime

  • @graceniamh2538
    @graceniamh2538 10 років тому +6

    Lactate is produced during anaerobic respiration. He was showing aerobic :)

    • @kandiikrushh3253
      @kandiikrushh3253 4 роки тому

      I doubt you remember but is lactate the product of lactic acid being Released ?

  • @kelseyblankenheim4134
    @kelseyblankenheim4134 6 років тому

    This video helped me understand glycolysis a lot better. Thank You!

  • @FaerieDust
    @FaerieDust 13 років тому

    I just have to say, thank you for these videos! I can't even begin to explain how helpful this is - all of your videos, really. I learn so much, everything's so amazingly pedagogical, you're awesome!

  • @user-xn1qm3yd7x
    @user-xn1qm3yd7x 9 років тому

    He has like the most helpful videos on cellular respiration thing

  • @FirehorseCreative
    @FirehorseCreative 11 років тому

    He forgot the 'u' in 'Pyruvate' as well- but it doesn't matter- he had me at 'phosphoglyceraldehyde' lol. What wonderful tutorials.

  • @sheilay98160
    @sheilay98160 12 років тому

    This helps SO much! Thank you!! I think I'm ready for my quiz tomorrow now! (hopefully)

  • @cdaniellemalimban
    @cdaniellemalimban 8 років тому +33

    CrashCourse vs. TED-Ed
    Winner: CrashCourse
    TED-Ed vs. Khan Academy
    Winner: Khan Academy
    CrashCourse vs. Khan Academy
    Winner: Khan Academy
    1st Place - Khan Academy
    2nd Place - CrashCourse
    3rd Place - TED-Ed
    :)

    • @inkbery4473
      @inkbery4473 6 років тому +2

      Danielle Malimban I feel like Khan Academy is best at preparing students, Crash Course is more for the fun of knowledge, but it still supplies students with a helpful guide, and TED-Ed is purely a "the more you know"-type channel, not meant for studying off of... So that's why Khan Academy is better for you, probably studying, right? 😊

  • @seni701
    @seni701 13 років тому

    Khan you are my hero im addicted to ur videos i love the may u teach guess what i got A+ for my immunology exam i love you and thank you million times pls do not stop to teach us : - ))

    • @attiya5471
      @attiya5471 2 роки тому

      Hey, I was just wondering, I mean if you wanna share where are you in life Now?

  • @jamesmay1164
    @jamesmay1164 10 років тому

    @Grace Niamh Lactate IS produced during anaerobic respiration, correct, but this was showing neither aerobic or anaerobic respiration. This was demonstrating the process of glycolysis. The first phase in BOTH aerobic or anaerobic respiration.

  • @SabinaLovee
    @SabinaLovee 13 років тому

    thank you so much! i have a bio test tomorrow. you should come teach at my school!!!

  • @megantran19
    @megantran19 12 років тому

    I like the white background :] it's a nice change from the black haha a lot brighter and happier!

  • @ccoott
    @ccoott 11 років тому

    Kahn academy basically taught my entire grade 12 year.

  • @radiacto
    @radiacto 12 років тому

    basically the 2 phosphates are taken from the 2 ATPs so that glucose can be phosphorylated, and a step that isn't shown is that as a result of this, 2 molecules of triose phosphate are created and 2 molecules of ADP, because the 2 phosphates have been taken from both ATPs, therefore there are only 2 phosphates left so ADP is produced because it is di-phosphate. Hope that helped

  • @Mareikimi
    @Mareikimi 13 років тому

    Thank you sooooooooo much, this is really, really helpful. Don't know what I would do without all the videos!

  • @awanturka
    @awanturka 12 років тому

    I actually believe that I can pass biochemistry exam :) you are golden! :D thank you so much!!!!!!!!!!!!!

  • @Jasminaa011
    @Jasminaa011 12 років тому

    I learned more here than I ever did with my teacher :'] I love you Sal.

  • @SathyaSaiKiran
    @SathyaSaiKiran 11 років тому

    very nice work, i really understood it which i was not able to since 2 months.

  • @vXSuperSonic
    @vXSuperSonic 9 років тому

    its crazy seeing he made all these vids 5 years ago and people r still watching as if he just realised the vids!! :)

  • @omgxd4
    @omgxd4 12 років тому

    Thank you very much! Much more understandable than the week of classes my teacher spent on this SMH. Well at least now I get it!

  • @MrMattthemanc
    @MrMattthemanc 14 років тому

    @MJfullofGrace - The anwer ro that question is that the first part of glycolysis uses 2ATP (breaking down glucose 6 carbon molecule to 2 3-carbon molecules ( intermediates which are then converted in a multistep process to pyruvate and for each pyruvate formed ATPS are produced. Therefore ther is a gain of 2ATP molecules. Body is constantly producing ATP don't think of it in isolation, think of body as many processes interconnected to produce energy to survive.

  • @270103023
    @270103023 14 років тому

    wow ! super helpful! much better than the 3D video! thanks a lot!

  • @metabog
    @metabog 14 років тому

    One of the best channels on UA-cam, hands down. Thanks, and respect!

  • @sydney3685
    @sydney3685 8 років тому

    Currently watching this the morning of a quiz I had a week to study for

  • @madcrazii88
    @madcrazii88 11 років тому

    youre my new bio teacher. thank you.

  • @JoeyBagADonuts8
    @JoeyBagADonuts8 12 років тому

    the addition of ATP. One Phosphate is added onto the glucose and one on the fructose during investment stage. One P from each ATP since 2 are used in investment

  • @AznXRice89
    @AznXRice89 14 років тому

    omg thank you soo much!!!! now I understand..your way better than my boring physiology teacher haha

  • @charlieisabeast100
    @charlieisabeast100 12 років тому

    There are 4 phases - After Glycolysis is the link reaction (the conversion of the pyruvate molecule into CO2 and a 2-carbon molecule called Acetylcoenzyme A).
    This is vital information as in the 'Krebs cycle': this enzyme is introduced into a cycle of oxidation and reduction reactions that yeild some Atp and a large no. of e- for use in the e- transport chain (to synthesise ATP with water as a bi-product).
    Oh and do not forget to mention that it is phosphorylated glucose that splits into ...

  • @danebell1
    @danebell1 12 років тому

    i like his hand writing. this was helpful.

  • @Fabela86
    @Fabela86 13 років тому

    You saved me with your awesomeness! Thanks for breaking this down for me!

  • @CraftyPirateJim
    @CraftyPirateJim 13 років тому

    Revising for my biochem resit exam, this is brilliant, why didn't I know about this before?!

  • @punchyraccoon2748
    @punchyraccoon2748 11 років тому

    where have you been all my high school life? WHY AM I ONLY STARTING TO FIND YOU IN 12th GRADE ... FML. BUT I LoVEU

  • @3squareddesigns
    @3squareddesigns 12 років тому

    Thank you, you are such a better teacher than my college professor!

  • @chaseyoung1800
    @chaseyoung1800 11 років тому

    kinda surprised me, the color of the background. but hey, im not complaining. you are GREAT man.

  • @luisaceo00
    @luisaceo00 14 років тому

    nice video, but you forgot to say, when explaining the diagram at the end that the two PGAL molecules are added an extra phosphate group in order to produce 4 ATPs instead of only 2.

  • @lizhengyao3672
    @lizhengyao3672 7 років тому

    Such clarity in explaining. I always enjoyed it.

  • @coachgaryang
    @coachgaryang 6 років тому

    Great explanation! Thanks lot!

  • @MrEnriqueag
    @MrEnriqueag 12 років тому

    This video has a mistake: The glucose produces fructobyphophate by adding 1 P from the ATP and changing the functional group to a cetose, when the fructobyphophate breaks down it produces a giceraldehyde and another 3-Carbon molecule, only that carbon molecule uses a NAD+ to produce a NADH and turn itself in another giceraldehyde.
    Only one NADH is produced
    Sorry for my english I'm Spanish

  • @BellaaRosee
    @BellaaRosee 13 років тому

    Thank you SO much! You're absolutely amazing! If I do well in biology this year, I will owe it all to you!

  • @swordguilds
    @swordguilds 12 років тому

    @spicame I'm not sure about your first question but for your second question (I assume from 2-phosphoglycerate to PEP), the OH group on the terminal carbon has to leave to form a double bond with carbon 2 but at this point carbon 2 has 5 bonds and rather than breaking the chain or releasing its ~O-Pi, it releases the hydrogen. So water is released.

  • @Nytrox3000
    @Nytrox3000 12 років тому

    The phase you call "pay off" is called the oxidation stage. the one before is photophorylation.

  • @jigglybandit
    @jigglybandit 13 років тому

    Actually, contrary to your explanation, the loss of a hydrogen is not reduction, but Oxidation. However, overall nice job, I'm having a test on this in my freshman bio honors class tomorrow and it helped.

  • @pizzachew
    @pizzachew 12 років тому

    @MrEnriqueag Glycolysisis works with two pyruvates derived from a single glucose molecule. An NAD is reduced into an NADH for each of these, therefore we have two NADHs as products.

  • @bobomac2012
    @bobomac2012 11 років тому

    thank you, very helpful. can you talk about lipolysis and type 2 diabetes

  • @drgunasameera3249
    @drgunasameera3249 8 років тому

    thx u for ths this makes my work simpler

  • @geegi163
    @geegi163 13 років тому

    you saved my life and GPA!

  • @TheGame750
    @TheGame750 14 років тому

    Very nice video, in fact all of your videos are nice, congratulations and of course you have my respect, keep it up

  • @ashleyoubre
    @ashleyoubre 13 років тому

    Awesome break down, THANKS!!!

  • @aoishikasrivastava5782
    @aoishikasrivastava5782 8 років тому

    this video is really awesome !!!!!!!!!!!!!!!!!! gud for bio students