How do cells get their energy? (Electron Transport Chain): Crash Course Biology #27

You know ‘em, you love ‘em. They’re the powerhouse of the cell: mitochondria. They produce the ATP molecules that we use to do everything from talk to our friends to run a marathon. In this episode of Crash Course Biology, we’re taking a deep dive into cellular respiration, the process that produces the ATP inside of our mitochondria.
Chapters:
Getting Energy 00:00
Mitochondria & ATP 1:22
Cellular Respiration 2:29
Glycolysis 4:18
The Citric Acid Cycle 6:40
The Electron Transport Chain 8:17
Review & Credits 11:05
This series was produced in collaboration with HHMI BioInteractive, committed to empowering educators and inspiring students with engaging, accessible, and quality classroom resources. Visit BioInteractive.org/CrashCourse for more information.
Check out our Biology playlist here: • Biology
Watch this series in Spanish on our Crash Course en Español channel here: • Crash Course Biología Sources: docs.google.com/document/d/1G...
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Пікірлер: 51

  • @DeathValleyDazed
    @DeathValleyDazed4 ай бұрын

    How classy to credit your student coming up with the currency exchange model. Sammy is a fantastic educator. Love this channel!

  • @justal4844
    @justal48444 ай бұрын

    AMAZING the world we live in today with the opportunity to learn science so well presented on a platform known for entertainment. What a time to be alive! Thank you, Doctor Sammy.

  • @holothuroid9111
    @holothuroid91114 ай бұрын

    I had a great biology teacher, she was only marginally more unsuccesful in teaching me this one. This is a serious step up from previous episodes.

  • @malkum77ify
    @malkum77ify4 ай бұрын

    Ah yes, I remember having to stand up in front of my biochemistry professor, Dr Robert boyd, and explain in detail the citric acid cycle. He was the chemistry department chair, and he was a brilliant researcher. I learned a lot from him.

  • @ceo1OO

    @ceo1OO

    4 ай бұрын

    my biochem professor was of Indian/pakistani descent... he knew his stuff...📚

  • @ScienceLe
    @ScienceLe4 ай бұрын

    As a Biochemistry student I really enjoy watching videos like this.

  • @RakinnROBLOX
    @RakinnROBLOX4 ай бұрын

    It's Regents today and we start it in under an hour, thanks for this useful video!

  • @ssjblckgohn1569
    @ssjblckgohn15694 ай бұрын

    I was studying this topic I swear 😂. Thanks , this video helped to make some additions to my note. (New subscriber here. Love your videos)

  • @meghnarao7504

    @meghnarao7504

    4 ай бұрын

    Oh my god! Me too. 2 days ago I was looking for a video on ETC and didn't find a good one . And today I get this in my home page!

  • @skybluskyblueify
    @skybluskyblueify4 ай бұрын

    That "currency exchange" seems like it starts with wood and cotton and manufactures the whole bill rather than just exchange one currency for another. I love the metaphors and allegories you came up with.

  • @MrAlexs888
    @MrAlexs8884 ай бұрын

    always amazed by the cycli of energy in our body

  • @oreokush5393
    @oreokush53932 ай бұрын

    Im taking an Environmental Toxicology course right now. It gets EXTREMELY nuanced.

  • @joannabrown2829
    @joannabrown28294 ай бұрын

    My energy cell aka mitochondria didn’t form properly. Therefore it’s like running on low battery for me 24/7. Weeks really like your videos. As I’m homeschooling we find these so fascinating and very informative

  • @The8BitPianist
    @The8BitPianist4 ай бұрын

    I have been trying to find a video on this earlier today. Exam's in less than 2 weeks, just in time. Thank you!

  • @MremboOne
    @MremboOne4 ай бұрын

    Thanks for this video. Great information.

  • @Thaythichgiachanh262
    @Thaythichgiachanh2624 ай бұрын

    Thanks for all your great advice. I really enjoy watching your videos, they provide a lot of knowledge and are very helpful on a daily basis in choosing food when shopping, etc. Thank you ❤✨ ​

  • @imadalishah76
    @imadalishah764 ай бұрын

    Waiting for Crashcourse microbiology

  • @sydneysukel2165

    @sydneysukel2165

    3 ай бұрын

    i'm taking physiology and microbiology right now, that would be great, specifically case studies.

  • @oreokush5393
    @oreokush53932 ай бұрын

    You reviewed the material we are rereviweing and expanding on in my Environmental Toxicology course!

  • @danielsk8p
    @danielsk8p4 ай бұрын

    I wonder how long it took for science to find out all of this and how the hell they did it

  • @jgranahan
    @jgranahan4 ай бұрын

    Very well done, I think!

  • @simonbolivar6960
    @simonbolivar69604 ай бұрын

    oh man this video comes in clutch to understand that recent "Nah, I'd win" mitochondria meme

  • @artianna85
    @artianna854 ай бұрын

    The citric acid cycle is essential

  • @BigRami98
    @BigRami982 ай бұрын

    you are the best ❤

  • @francoislacombe9071
    @francoislacombe90714 ай бұрын

    So, ATP is not very energy dense, if the energy of a single glucose molecule can make 30 ATP molecules. 🤔

  • @Mike80097
    @Mike800974 ай бұрын

    The electron transport chain and oxidative phosphorylation was the topic of my masters work. I met Peter Mitchell. 😊

  • @CommieHunter7
    @CommieHunter74 ай бұрын

    I'm with you. 100lb of ATP a day sounds crazy.

  • @ahchoo5659
    @ahchoo56594 ай бұрын

    the mitocondria is the powerhouse of the cell

  • @ceo1OO
    @ceo1OO4 ай бұрын

    🔬 10 million ATP particles are made every second... 🔹 if you take the reciprocal...that means ... 🔬 1 molecule is made every 100 nano seconds... ⚡ that's lightning fast ⚡

  • @GG15644
    @GG156444 ай бұрын

    Keep posting, your follower from Iraq ❤

  • @Leotique
    @Leotique4 ай бұрын

    ATP ADP I remember studying about it back in 2015

  • @ujiro5518
    @ujiro55184 ай бұрын

    Ugh u uploaded this to late I just had my final today but great info as always 😢

  • @claudelorrain-bouchard6941
    @claudelorrain-bouchard69414 ай бұрын

    12:35 But 10M ATP molecules... ok, but 1) how many ATP molecules does the cell need per second? 2) Or does it vary depending on the type of cell? 3) Do some cells produce (and use) more ATP than others? 4) Does the number of ATP produced and used vary throughout the day? 5) Does the number of ATP produced and used vary during different activities (eg: thinking vs doing sports vs dreaming)? This gave me more questions ...

  • @PhoenixProdLLC
    @PhoenixProdLLC4 ай бұрын

    I need that microscope! 😭 😁

  • @bubblegodanimation4915
    @bubblegodanimation49154 ай бұрын

    Love the fancy outfit Sammy!

  • @Your_little_demon
    @Your_little_demon3 ай бұрын

    I'm here for something else.... I just got to know that this is also a channel of John green .. sir, I just finished fault in our stars and I hope you have a good night after crushing my dreams ...

  • @aW5uY25jNzc1Nw
    @aW5uY25jNzc1Nw4 ай бұрын

    WHY DID THIS RELEASE RIGHT AFTER MY EXAMS WERE OVER 😭😭😭

  • @thatomofolo452
    @thatomofolo4524 ай бұрын

    Quantum physics

  • @GG15644
    @GG156444 ай бұрын

    🎉🎉🎉🎉🎉

  • @MrMetro-mt5qv
    @MrMetro-mt5qv4 ай бұрын

    This is a great way to microwave scientific information.

  • @imadalishah76
    @imadalishah764 ай бұрын

    Microbiology

  • @abubakarrkamara3382
    @abubakarrkamara33824 ай бұрын

    A❤

  • @user-en2rg5xq1e
    @user-en2rg5xq1e2 ай бұрын

    How much is 100 pound? Please at least write in kg/g in the edge of video because everybody is not familiar with fps system

  • @stax6092
    @stax60924 ай бұрын

    WHAT? You're telling me my body is preventing me from exploding naturally? I am disappointed. Also, if you're a hundred pounds you are way smaller than I thought, that's half my weight.

  • @hotsistersue
    @hotsistersue4 ай бұрын

    I'm still stuck on the fact that Sami weighs 100 lbs.

  • @AbyssalExalt
    @AbyssalExalt4 ай бұрын

    I saw a jujutsu kaisen edit of this

  • @lieutenantripleyy
    @lieutenantripleyy4 ай бұрын

    I need turkish language

  • @desmodus_rotunduss
    @desmodus_rotunduss4 ай бұрын

    How do we use 100 pounds of ATP daily if we don't consume 100 pounds of food? And if we do, it would be used with total efficiency and we wouldn't need to use the bathroom

  • @AymansHalalflix
    @AymansHalalflix3 ай бұрын

    What is this CLICHE COUNTER thing??😐

  • @andrewf5934
    @andrewf59344 ай бұрын

    first

  • @user-sb3xj4fd1s
    @user-sb3xj4fd1s4 ай бұрын

    Why can I comment