Translation (mRNA to protein) | Biomolecules | MCAT | Khan Academy

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  • Опубликовано: 12 янв 2025

Комментарии • 267

  • @rabihahmad5878
    @rabihahmad5878 2 года назад +146

    If I ever actually become a doctor, I am giving $10,000 to Khan Academy. Hold me to it.

  • @johntindell9591
    @johntindell9591 8 лет назад +577

    you are such a honorable teacher. you have made a student like me have the opportunity to all this beautiful knowledge. you sound so passionate! i really admire how you digest the information!

    • @Funymoney010
      @Funymoney010 7 лет назад +84

      john tindell I first saw this as you are such a horrible teacher lmao I was about to get super pissed off

    • @ELANSYLVESTER
      @ELANSYLVESTER 6 лет назад +4

      Alex Christensen fr lmao

    • @tatianavbotello
      @tatianavbotello 6 лет назад +6

      same, i was about to go off hahahah

    • @praukefetry7507
      @praukefetry7507 6 лет назад +2

      and its all for free im so happy

    • @ChimdiMelody
      @ChimdiMelody 6 лет назад

      Alex Christensen sameeeee

  • @AveryShazz
    @AveryShazz 3 года назад +122

    This is so much clearer than my college professor could ever dream of doing. Thanks for saving my education.

  • @kyra1226
    @kyra1226 5 лет назад +89

    I've had headaches for two weeks while my teacher was trying to explain this, and now in 14 minutes it's all clear.. thanks!

  • @petroslazanis8466
    @petroslazanis8466 7 лет назад +286

    God bless Khan. I literally felt like i was on heroin during my lecture today when the prof was going on about transcription/translaition

  • @hannahgrant325
    @hannahgrant325 3 года назад +32

    This man has truly taught me everything I need to know since high school. Thank you for teaching me and giving me an education better than a lot of my professors.

  • @franciscasousa7284
    @franciscasousa7284 8 лет назад +281

    Not gonna fail molecular bio thanks to this 🙏

    • @mmaking8664
      @mmaking8664 8 лет назад

      hahahha, same here man, does this go into deep enough detail, tho?

    • @jade_be_jeweled6845
      @jade_be_jeweled6845 8 лет назад +6

      MMA king I personally thought it was a great overview but not nearly as in depth as our class is going, great for generally understanding it though

    • @mmaking8664
      @mmaking8664 8 лет назад

      U r so pretty, are u Malaysian?

    • @mmaking8664
      @mmaking8664 8 лет назад

      seominty U are so pretty, are u Malaysian?

    • @jade_be_jeweled6845
      @jade_be_jeweled6845 8 лет назад +1

      MMA king lol! That's a k pop idol, not me

  • @he110alison
    @he110alison 8 лет назад +9

    Good old Sal! Love his voice. These vids got me through my nursing prerequisites. Couldn't have done it without him. This is gold.

  • @ShinySephiroth1
    @ShinySephiroth1 6 лет назад +42

    Hands down the best possible explanation I have ever heard. You are a blessing to mankind. Thank you.

  • @sachitkoirala
    @sachitkoirala 6 лет назад +13

    This is the most clearly explained video on translation I have watched. Simplifies the complex concept. Thank you Khan Academy and the tutor.

  • @orange9923
    @orange9923 4 года назад +4

    Sir your teaching is exceptional. I have been struggling to find a good and clear explanation of translation all over youtube but couldn't find one. But guess what. I stumbled upon your beautiful and super simple explanation of the same. Thank you so much.

  • @ruthnicolas8061
    @ruthnicolas8061 5 лет назад +19

    God bless khan academy T.T I'm a visual learner and this is just beyond awesome!! I'm understanding, learning, AND I'm inspired by the passion of this teacher!

  • @chopotronichappiness8917
    @chopotronichappiness8917 5 лет назад +5

    I've always had this problem with these sites in ribosome, like what are they exactly and what are they for?- and now it's clear. Sal you are a blessing ♥

  • @Von-dee
    @Von-dee 8 лет назад +64

    THANK U! My brain was frying up trying to understand this by myself.

  • @deboisdead
    @deboisdead 2 года назад +1

    bro you are the only reason that I have not failed hon bio thank you for that

  • @saviourkuade
    @saviourkuade 3 года назад +8

    Why does it look soo simple here😳❤️❤️

  • @rockoquels
    @rockoquels 6 лет назад

    I love that every video he does he is as fascinated with the complexities of these structures and processes. Now I pick up plants, give them to friends, and ask, what do you see? If they aren't as passionate and appreciative as this man, I cut them off.
    What is your name Sir? You are amazing!!

  • @Ninot97
    @Ninot97 8 лет назад +9

    i love you for making these videos. such a life saver

  • @kalkidansemere8505
    @kalkidansemere8505 8 лет назад +8

    Life saver as always. Thanks Sal khan!!!

  • @HeroDw-n2m
    @HeroDw-n2m 3 года назад +2

    10:39 AA,PE,EEEE sites that got me bro 🤣

  • @yashsoni4962
    @yashsoni4962 6 лет назад +3

    This Teacher's voice is super cool and he clears all my doubts and bdw the only reason I love Khan academy's biology part is due to this Teacher's voice

    • @staffan144
      @staffan144 4 года назад

      It is Sal Khan himself, who started with online math tuttorials for his relative once upon a time.

  • @gracegable5597
    @gracegable5597 8 лет назад +18

    Great video, I will definitely pass my Cell Bio exam tomorrow!

    • @vee-5697
      @vee-5697 7 лет назад

      Grace Gable did u pass? :p

    • @bhanusmitha1957
      @bhanusmitha1957 6 лет назад

      Grace Gable 😀😁😁you have to score

  • @zainabalradi2306
    @zainabalradi2306 8 лет назад +68

    if I passed my premedical year I would dedicate my certificate to you

    • @vee-5697
      @vee-5697 7 лет назад +2

      Zainab Al Radi did u pass? :p

    • @sfashaikh1187
      @sfashaikh1187 7 лет назад

      Zainab Al Radi gimme ur certificate!

  • @lelyanalmaghrabi2566
    @lelyanalmaghrabi2566 4 года назад +3

    beautful structures!!! i love bio.. very facinating

  • @UgwuwnyiMichael
    @UgwuwnyiMichael 5 месяцев назад

    This should be the best bio class I've ever had

  • @GW-jx3cz
    @GW-jx3cz 4 года назад

    Brilliant Khan, I preferred that to the last video! You're brilliant, thank you! That was the one step nobody explains well and for weeks I couldn't understand it as even the most detailed books I have just bypassed like 'ahem', or 'anyways'!!! Gold stars and medals for you! ;)

  • @EnderAnimals4
    @EnderAnimals4 2 года назад

    20 fewer pages of my $150 textbook I will have to read tonight. Thank you good sir.

  • @ritikachatterjee8039
    @ritikachatterjee8039 3 года назад

    what we would do without teachers like you? forever indebted to the technology advancement and teachers like you.

  • @ivonnenieto8217
    @ivonnenieto8217 3 года назад

    WOW... My professor took TOO LONG to explain this. I needed the visuals

  • @dameind.2246
    @dameind.2246 6 лет назад +2

    Many things missing as per NEET syllabus. But still helped me. Thanks.

  • @yourfuturedocburenbeiya
    @yourfuturedocburenbeiya 5 лет назад +1

    This is so awesome and so clear!! You made this fascinating process come to life and this video wasn’t even animated!! Thank you sir for all you do!!

  • @stavroslv9184
    @stavroslv9184 4 месяца назад

    Top Tier explanation. Thank you so much. My book messed up this explanation even if it is quite simple.

  • @omermohammedomer4017
    @omermohammedomer4017 2 года назад

    it's helped a lot thanks you just got a new subscriber

  • @konchittavong697
    @konchittavong697 6 лет назад +3

    You are so good! Thank you for making this video.

  • @hazeld8016
    @hazeld8016 4 года назад

    I did not expect that video to go in enough depth for my intro to cell bio exam but it did! Thanks so much!

  • @SadiqHussain-cx8jv
    @SadiqHussain-cx8jv 3 года назад

    waaawo hates off sir, thank you so much, you are a true blessing to mankind,

  • @comedianmalyka2646
    @comedianmalyka2646 3 года назад +1

    bless him and this channel

  • @jenniferallison4402
    @jenniferallison4402 6 лет назад +2

    Sal Khan you are a magnificent human being.

  • @irenicxraven
    @irenicxraven 3 года назад

    🍔 Hamburger like..... I am hungry now.....3:53 😂😂😂

  • @phillipmills5307
    @phillipmills5307 2 года назад +1

    crazy how in 15 minutes i learned more than from a 55 minute lecture

  • @zafarkayani2081
    @zafarkayani2081 5 месяцев назад

    God bless you and all your team

  • @zafarkayani2081
    @zafarkayani2081 5 месяцев назад

    Well done khan academy 👍👍👍👍👍

  • @biba4761
    @biba4761 3 года назад

    Thanks won't be enough ... I have understand more then the usual when I follow my boring teachers 💜✨
    Who is here to revise for his bac?

  • @alim2756
    @alim2756 9 месяцев назад

    Best explanation ever👏

  • @fatemaelzahraasaidmahmoud987
    @fatemaelzahraasaidmahmoud987 6 лет назад +2

    Thank you for teaching us how to love and appreciate biology ❤❤❤

  • @gauravkarna4754
    @gauravkarna4754 7 лет назад

    make a nobel prize for education, and give it to this man.

  • @dimplereddy5951
    @dimplereddy5951 6 лет назад +1

    Thank u soo much... Ur explanation nd teaching method is awesome.... I loved it... Nd I'm never gonna forget this...😉

  • @SOhida-w3r
    @SOhida-w3r 10 месяцев назад

    You're a life saver thank you.

  • @nimradasilva4675
    @nimradasilva4675 5 лет назад +2

    Saving my life yet again :)

  • @zanmak6333
    @zanmak6333 5 лет назад +3

    i wish you go to heaven man wherever its is love from iraq ❤ medicine university

  • @areummartha1069
    @areummartha1069 4 года назад

    Thank you so much! You are way better than my teachers in explaining!

  • @xochichavez4232
    @xochichavez4232 2 года назад +1

    At this point I should be paying khan academy for my education

  • @tankiplayer4323
    @tankiplayer4323 2 года назад

    Thanks sir
    I tried to learn Translation but failed…
    But your video has cleared all my concepts about translation.😊
    May God bless you

  • @kumbiraideon5505
    @kumbiraideon5505 7 лет назад +13

    This is wonderful. Thank you for a simplified version of translation. Sometimes i prefer watching these summarized videos than reading a book..But i got a question in relation to the 'E, P, A' sites how is it possible that we have an Exit on the 5' yet the mRNA is run thru the ribosome from 5' 3' direction ..Can you assist on that maybe i missed it

    • @AdaTrimaj
      @AdaTrimaj 7 лет назад +2

      I think it is a mistake, the 5-3 direction should be opposite in that video to make sense. Evrything else seems to be okay.

    • @thepsychhike7177
      @thepsychhike7177 6 лет назад +8

      its not a mistake. the E site is on 5' bc the ribosome is moving towards 3' but the codons are still at the same place. so the tRNA which is initially on p site shifts to the E site not bc it is moving towards 5' end but bc the ribosome is moving towards 3' end and the tRNA is still in its position.

  • @adventurekitty1016
    @adventurekitty1016 2 года назад

    I just realized I am rewatching a video my teacher played for us yesterday. Lol. I didn't realize till the T and + confusion.

  • @tubhyamroy9105
    @tubhyamroy9105 5 лет назад

    The best possible explanation u gave
    Hands up to this

  • @pavellambracht5823
    @pavellambracht5823 7 лет назад +37

    So, theoretically all proteins start with Methionine?

    • @dameind.2246
      @dameind.2246 6 лет назад +19

      Pavel Lambracht Yep. Without AUG, no translation occurs and no protein formed.

    • @maheerkhan8500
      @maheerkhan8500 6 лет назад +4

      Wow. I didn't realize that.
      *BRAIN FART* :D

    • @R-Tex.
      @R-Tex. 6 лет назад +16

      Most of the proteins loose the methionine residue in post-translation processing.

    • @josephmoore4764
      @josephmoore4764 5 лет назад +3

      In eukaryotic cells and Archea. Prokaryotes use a variant called fMet

    • @graciebotsford2674
      @graciebotsford2674 4 года назад +1

      That's exactly what I thought about, and I think you are correct.

  • @maazhaji8904
    @maazhaji8904 6 лет назад +1

    Great video, explains tRNA and mRNA interactions so well. My mind can visualize it smoothly now. Also, super interesting fact about the antibiotics at the end!

  • @hipsterkitty619
    @hipsterkitty619 3 года назад

    legendary biology teacher

  • @elishaduggan997
    @elishaduggan997 8 лет назад

    thank you!! got an exam today and it is on this!!

    • @_q_sal1
      @_q_sal1 5 лет назад

      did you pass

  • @mikojiang2606
    @mikojiang2606 7 лет назад

    Than you SO MUCH for making this video!!! This helps a lot!!!

  • @rimal9305
    @rimal9305 4 года назад

    i find this whole process so fascinating thanks for the video its clear u are very passionate

  • @jamessears8289
    @jamessears8289 4 года назад +3

    i think i missed a detail- does the ribosome float around and kind grab tRNA or are they drawn towards it? or what? how does the ribosome come in contact with tRNA?

  • @riggidyrickt7574
    @riggidyrickt7574 7 лет назад

    You teach a lot better than my biochemistry professor! Class is pretty much useless for me

  • @mobina-9101
    @mobina-9101 Год назад

    Thia year I'm gonna take University Entrance Exam and i promise i will do my best, and after that I'm gonna come back here and thanks u cuz u teacher did so much for me ♡

    • @arghghgh
      @arghghgh 9 месяцев назад

      how was it

  • @rabeaahsan2070
    @rabeaahsan2070 5 лет назад +1

    During and after translation, polypeptides may need to be modified before they are biologically active. Post-translational modifications include:
    removal of translated signal sequences-short tails of amino acids that aid in directing a protein to a specific cellular compartment
    proper “folding” of the polypeptide and association of multiple polypeptide subunits, often facilitated by chaperone proteins, into a distinct three-dimensional structure
    proteolytic processing of an inactive polypeptide to release an active protein component, and
    various chemical modifications (e.g., phosphorylation, methylation, or glycosylation) of individual amino acids.

  • @Mimmim-mx1py
    @Mimmim-mx1py 5 лет назад

    Wow cant believe i actually enjoyed science😂 great teaching

  • @TankP0wnz
    @TankP0wnz 7 лет назад

    That part at the end about how abx work blew my mind

  • @FatimaHamid-c6w
    @FatimaHamid-c6w Год назад

    You are the best ❤️

  • @thebeggarsdice6020
    @thebeggarsdice6020 7 лет назад

    You guys make it all so much more beautiful. Thanks Khan Academy, I'll do well thanks to you.

  • @gkumar9496
    @gkumar9496 2 года назад

    The explanation is just wow

  • @miniboss6524
    @miniboss6524 3 года назад

    Thank you for being a life saver~~ 🖤

  • @paulilicious94
    @paulilicious94 8 лет назад

    Nice video. Some people may not know but proteins make up the majority of the biopharmaceutical market for use as a therapeutic

  • @ranayasser3882
    @ranayasser3882 8 лет назад +2

    Thanks alot.. that's so helpfull 👌👍👍

  • @josselynramirez4443
    @josselynramirez4443 5 лет назад

    Super helpful I now fully understand

  • @hannahrefaie9849
    @hannahrefaie9849 4 года назад

    Thank You, Sal!

  • @ionescurazvan2233
    @ionescurazvan2233 2 года назад

    Awesome! Thank you

  • @payalrathod2852
    @payalrathod2852 6 лет назад

    taught very nicely...really😀😁😁💕

  • @JS-vo6go
    @JS-vo6go 8 лет назад +3

    Thank you so much!!!!

  • @simrenjeonjkook4072
    @simrenjeonjkook4072 5 лет назад

    Very nice Video...Thank you so much for This

  • @mohammedburhanuddin303
    @mohammedburhanuddin303 6 лет назад

    Brilliant sir Salman khan😍
    From Bangladesh!

  • @MHT_Official
    @MHT_Official 5 лет назад

    Thank you Sir.
    You are always a Life Saver in Exam

  • @coolmatrix15
    @coolmatrix15 6 лет назад

    we can do this fellow learners!

  • @isabellakim7044
    @isabellakim7044 7 лет назад

    at 12:11, I think you meant to say "then the A-site will be open for another tRNA carrying an amino acid" instead of "for another amino acid carrying tRNA"!

  • @agnestee4261
    @agnestee4261 4 года назад

    Thanks! This video is really helpful!

  • @rebelScience
    @rebelScience 5 лет назад

    Guys, I am still puzzled with one question: So we have Chromosomes -> DNA in a nucleus of the cell. Then, we have Translation phase where we get Proteins, but where do Proteins live? Do they live inside the cell (cytoplasm) ? So each cell creates it's own Proteins or each cell creates different proteins and they leave the cell and work 'outside' the cell? And in this case, what is 'outside' the cell? Any material/video, explaining this are more then welcome!

  • @zafarkayani2081
    @zafarkayani2081 5 месяцев назад

    Very informative video

  • @pbegum5012
    @pbegum5012 7 лет назад

    awesome. i really got it now perfectly.

  • @swathibarigela4144
    @swathibarigela4144 2 года назад

    So well explained 👌

  • @maryamsediqi3726
    @maryamsediqi3726 2 года назад

    you are beyond genius 🙏🌹

  • @AliHassan-it9lt
    @AliHassan-it9lt 7 лет назад

    You are a great teacher😍

  • @okayokay9715
    @okayokay9715 4 года назад

    you guys are amazing and extremely helpful

  • @ainy._nad
    @ainy._nad 10 месяцев назад

    this really help a lot thanks

  • @omarreza420
    @omarreza420 7 лет назад

    complicated process it's a whole process how does it know to do that its amazing

  • @rikthipranadhik
    @rikthipranadhik 4 года назад +1

    This means the whole polypeptide chain binds to a new tRNA at A site every time and the older tRNA they were attached to gets disposed through E site

  • @deru6745
    @deru6745 2 года назад

    god bless your soul

  • @haleynewbold4240
    @haleynewbold4240 4 года назад

    this was SO helpful thank u

  • @aashithapa1913
    @aashithapa1913 7 лет назад

    You are Amazing. Thank you so much 😊

  • @amenostalgique
    @amenostalgique 8 лет назад

    this stuff blows my mind

  • @mariadesuza5811
    @mariadesuza5811 4 года назад

    This is cool and helpful ❤