Lactic acid fermentation | Cellular respiration | Biology | Khan Academy

Поделиться
HTML-код
  • Опубликовано: 30 сен 2024
  • Exploring how the oxidation of co-enzymes like NADH to NAD+ can eventually lead to the production of ATP through oxidative phosphorylation and the electron transport chain.
    Watch the next lesson: www.khanacadem...
    Missed the previous lesson? www.khanacadem...
    Biology on Khan Academy: Life is beautiful! From atoms to cells, from genes to proteins, from populations to ecosystems, biology is the study of the fascinating and intricate systems that make life possible. Dive in to learn more about the many branches of biology and why they are exciting and important. Covers topics seen in a high school or first-year college biology course.
    About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.
    For free. For everyone. Forever. #YouCanLearnAnything
    Subscribe to Khan Academy's Biology channel: / channel
    Subscribe to Khan Academy: www.youtube.co...

Комментарии • 50

  • @rpe821
    @rpe821 9 лет назад +20

    Sal, I can't tell you how many quizzes and test you've helped my son pass. What you're doing is incredible. Free tutoring services for all! I've donated, but it doesn't nearly compensate you for all you have done. Thanks!

  • @1crispypickle
    @1crispypickle 9 лет назад +47

    this gentleman's voice is easier to listen and learn from than the others. I wish he did all the physiological videos

  • @Barakon
    @Barakon Год назад +1

    So…how does the food industry get lactic acid, does it always involve milk?

  • @juliehenderson5211
    @juliehenderson5211 7 лет назад +10

    I love Sal. Every single topic you discuss is so wonderfully explained. I have learned so much from Khan academy. I seriously watch these videos daily! Fascinating stuff!

  • @fanmania8
    @fanmania8 9 лет назад +14

    This video has great timing I'm taking my bio final today

    • @emansedqi5821
      @emansedqi5821 3 года назад +1

      I’m taking my AP bio final in few mins 😭

  • @huyle9988
    @huyle9988 8 лет назад +56

    This video is unnecessarily complicated. It's ok but not so great!!

  • @ratatat12356
    @ratatat12356 9 лет назад +8

    finally a video on fermentation liked and subbed

  • @SPYSpreads
    @SPYSpreads 8 лет назад +27

    For those who don't understand the video completely, I recommend you guys read about it in a text book then watch the video it will make an absolute sense. Great video, Sal. God bless !

    • @SteezySteez2011
      @SteezySteez2011 8 лет назад +1

      +Ali Saleh For sure, my final is comprehensive and I seem to have forgotten the details...but this was too detailed lol

    • @Happygirl-wx7yp
      @Happygirl-wx7yp 6 лет назад

      Ali Saleh are you from balambat

  • @tylerthomas4765
    @tylerthomas4765 7 лет назад +2

    It would be useful in future videos to show how steps obey the electroneutrality principle. I certainly struggle applying this principle to biological processes. Otherwise a very helpful video.

  • @tomislavhoman4338
    @tomislavhoman4338 5 лет назад +6

    It also happens in our muscles during anaerobic exercises, our cells switch to this metabolism due to lack of oxygen and produce lactic acid, which gives us muscle sore.

  • @gabrielfarias6997
    @gabrielfarias6997 6 лет назад +2

    why did he end up with two different products at the end

  • @arj7788
    @arj7788 4 года назад +1

    I like your funny words magic man

  • @absalomportillo2828
    @absalomportillo2828 9 лет назад +1

    "Hopefully you get a kick out of this. I know I do" Haha, that was funny. Anyways, great video; it was very helpful.

  • @yungdaku212
    @yungdaku212 8 лет назад +1

    help me why is sodium hydroxide used to measure lactic acid value

  • @itsrockitt
    @itsrockitt 8 лет назад +1

    So is fermented food beneficial? I thought the body needs ATP not lactic acid. Where can I get more info on this?

    • @williamroberts2752
      @williamroberts2752 8 лет назад +3

      The supposed benefits of fermented foods have nothing to do with their ability to provide energy (ATP) and is to do with the beneficial bacteria contained within the fermented foods.

    • @sigma7208
      @sigma7208 5 лет назад

      We need lactic acid where we cant get oxygen directly like in some muscles during extreme physical properties.

  • @lachlanhilton-mcneven8880
    @lachlanhilton-mcneven8880 3 года назад +1

    love this channel man

  • @Dark_Emilie
    @Dark_Emilie 6 лет назад +2

    c ette vidéo est complete mais complexe a comprendre

  • @ninadee9753
    @ninadee9753 Год назад

    Is lactic acid fermentation an indefinite or temporary process? What ultimately stops lactic acid fermentation?

  • @brettblute7739
    @brettblute7739 2 года назад

    WOW, AND THANK YOU. I have been looking for this explanation, SwEeT!

  • @timblackburn1593
    @timblackburn1593 2 года назад

    Where would we be without you Sol - after struggling in the dark for weeks getting maybe 5% Khan Academy switches the light on, again - Thank You

  • @SF-yh2ot
    @SF-yh2ot 6 лет назад +1

    HELP PLEASE. So, Lactic Acid Fermentation does not use O2. And Pyruvate is used to oxidize NADH to NAD+ and the NAD+ is used to perform Glycolysis again, right? So what happens to Pyruvate? Is it going to be oxidized (reduced?) to Lactic Acid? If so, what is the function of Lactic Acid? And how are we going to use Lactic Acid as energy? I’m sooo confused here.

    • @rinu8835
      @rinu8835 6 лет назад +3

      Well the pyruvate is converted to lactate. We can't use lactic acid as energy. All it does is removes the hydrogen from NADH (during the conversion of pyruvate to lactate) and converts it to NAD to go through glycolysis again. Lactic acid can cause pain in the joints.
      When we get oxygen, the lactate is carried by the blood plasm to the liver. 20% of it is oxidized to carbon dioxide and water; the rest is converted to glycogen.

    • @nsn27
      @nsn27 5 лет назад

      @@rinu8835 how can we end up with lactic acid in tbe body when our cells only produce lactate ?

    • @tyronewilliamson2137
      @tyronewilliamson2137 3 года назад

      @@nsn27 He said the lactate is carried not lactic acid. But if he meant to type lactic acid, then you should probably research more in-depth by yourself to know the answer.

  • @maine648
    @maine648 5 лет назад

    He said that a hydrogen proton, electron and another electron is removed, then both electrons attached in the pyruvate, and the oxygen grabbed a hydrogen proton from a passing water molecule, what happened to the original proton?

  • @jonathanaugustin647
    @jonathanaugustin647 7 лет назад +1

    So where does the energy come from? This was never explained.

  • @6sheldon
    @6sheldon 3 года назад

    I wanna know about lactic acidosis vs DKA plz

  • @arkbeamehome2937
    @arkbeamehome2937 7 лет назад

    in a nut shell is lactic acid good or bad for body

  • @nickonde5937
    @nickonde5937 6 лет назад

    1:40 THAT'S WHY I'M WATCHING THIS VIDEO!!

  • @jeffandersen9673
    @jeffandersen9673 4 года назад

    Will it bubble when fermenting

  • @BernardoRojasdeLuna
    @BernardoRojasdeLuna 3 года назад

    Wow! Thank you.

  • @YourStarseedSister
    @YourStarseedSister 5 лет назад +1

    Is this the same as anaerobic respiration??

  • @kanginsoo6166
    @kanginsoo6166 9 лет назад

    can you translate it in italian?

    • @bryannguyen8440
      @bryannguyen8440 9 лет назад +1

      +Naomi Oliveri You can turn on the CC and put the words he is saying in Google Translate.

    • @centralhicksiv4468
      @centralhicksiv4468 7 лет назад +9

      or you could learn english

    • @FoxLatté-r1l
      @FoxLatté-r1l 3 года назад

      @@centralhicksiv4468 English is hard if your not a native, not to mention it breaks its own rules. It would be easier to google translate it.

  • @lemonwavey5689
    @lemonwavey5689 3 года назад +1

    My teacher told me to watch this and I understand nothing, not a single word. Ugh

  • @lemonwavey5689
    @lemonwavey5689 3 года назад

    My teacher told me to watch this and I understand nothing, not a single word. Ugh

  • @christinacharles3283
    @christinacharles3283 7 лет назад +3

    you talk way too much just get to the point please.

    • @dianafuzaylova7687
      @dianafuzaylova7687 7 лет назад +9

      Christina Charles some people here would like a detailed explanation, if you want a fast explanation maybe read the textbook for a change or find another video