Cell Cycle and Mitosis

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  • čas přidán 5. 08. 2024
  • The life of a cell is amazingly complex. Mitotic cell division requires precision and organization to ensure that both daughter cells receive EXACTLY the same genetic material. But how? This video explains the phases of the cell life cycle, the important structural features of chromosomes and a whole lot about microtubules which organize the whole affair. The end of the video briefly discusses how often cells divide and how they "know" when to divide - and what happens when they make mistakes.
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    VIDEO DETAILS
    The Cell Cycle and Mitosis
    Cell Division is needed for:
    Reproduction in single-celled organisms
    Asexual growth in colonial organisms
    Development in multicellular organisms from a fertilized egg
    Cell replacement in multicellular organisms
    Challenges of Cell Division
    When one cell divides into two, the daughter cells must be IDENTICAL to the parent cell
    DNA management is key
    Each human cell (excluding eggs or sperm) holds DNA containing 6 billion base pairs with approximately 50,000 protein-encoding genes
    That DNA, if stretched out, would be 6 feet in length
    Chromatin vs. Chromosome
    MISCONCEPTION ALERT
    Replication of DNA does NOT occur during mitosis! It has to occur BEFORE mitosis begins!!!
    This is Your (Cell's) LIFE
    The Cell Cycle
    Interphase: G1, S, G2
    Cell Division: Mitosis, Cytokinesis
    A Little More About Chromosomes: centromere, sister chromatids, kinetochore
    Moving Chromosomes Around: centrosome (spindle poles), astral microtubules, kinetochore microtubules
    The Cell Cycle
    Prophase
    Chromatin condenses into chromosomes
    Nucleolus disappears
    Microtubule assembly begins
    Prometaphase
    Nuclear membrane breaks down
    Kinetochore microtubules form and attach to kinetochores
    Polar microtubules push against each other and push the centrosomes apart
    Astral microtubules assemble to anchor the centrosomes at opposite poles
    Metaphase
    Chromosomes line up on the metaphase plate
    Anaphase
    Chromosomes break at the centromere into sister chromatids
    Sister chromatids move toward opposite poles
    Telophase
    Chromatids (now called daughter chromosomes) begin to decondense into chromatin
    Nuclear membranes begin to form around each set of daughter chromosomes
    New cell wall begins to form (plants)
    Cleavage furrow forms (animals)
    Cleavage (why the fascination?)
    Plants and Cell Wall Formation
    How Often do Cells Divide?
    When Things Go Wrong... Cancer

Komentáře • 225

  • @Penguinprof
    @Penguinprof  Před 11 lety +2

    Thanks Simon - I'm SO glad to hear you have found my videos helpful. I took down the vlog because it made the site inappropriate for underage viewers (due to language in comment feed) and my status as an educational site with CZcamsEDU would be jeopardized - NOT worth it! Anyway it was a quick experiment and I learned a lot. :) Best of luck to you in your new adventure and stay in touch!

  • @jonwilson704
    @jonwilson704 Před 10 lety +24

    Wow, this presentation was simple and to the point. I really picked up a lot from this video. Ive been reviewing the cell cycle for two weeks and learned more in 20 mins. Thank you.

    • @Linkard
      @Linkard Před 10 lety

      Exactly the same for me :) Very understandable and helpful

  • @Katabatic44
    @Katabatic44 Před 9 lety +11

    PPMAT
    Prophase: chromatin condenses into chromosones
    Prometaphase: centrosomes pushed apart
    Metaphase: chromosones line up on a plane in the center
    Anaphase: chromosones separate
    telophase: cells divide

  • @mahmoodmoosavi3616
    @mahmoodmoosavi3616 Před 7 lety

    I have never seen a presentation this comprehensive, straight forward and clear

  • @PhD4me
    @PhD4me Před 6 lety +1

    Awesome job explaining the processes. Very soothing voice as well😁

  • @ThatGuy09890
    @ThatGuy09890 Před 7 lety

    I learned more about this in a free 20 minute video than I did I did in an over-complicated, 1 hour lecture. Thank you!!!

  • @loveovercomeshate
    @loveovercomeshate Před 11 lety

    You simplified the cell cycle that I've been battling with for so many months. Thank you very much. And you have a very soothing voice too!

  • @winonadaphne6445
    @winonadaphne6445 Před 8 lety +4

    Your voice is full of expression, great visual material as well!

  • @PeaceAndPaint
    @PeaceAndPaint Před 10 lety +1

    I like the analogies that you use to explain! They help me remember certain things.

  • @happiestlaurenl
    @happiestlaurenl Před 10 lety

    Very very helpful! I've been struggling in PreAp biology and this really caught me up! Thank you !

  • @Marlensitaa04
    @Marlensitaa04 Před 8 lety +3

    oh gosh you are always so helpful! Beautifully broken down thanks!

  • @skymedline
    @skymedline Před 11 lety

    I like Simplified version of your presentations on uninteresting subject like this one. Especially your analogies are perfect.
    Thank you.

  • @carriewenta3868
    @carriewenta3868 Před 6 lety

    Love the video! Created a worksheet for my students to fill in as they follow along. Thank you.

  • @WITaHINTofRANDOM
    @WITaHINTofRANDOM Před 7 lety

    You explained it so well, I love the examples, I'll definitely be thinking about those during my exam.

  • @kylataylor8824
    @kylataylor8824 Před 10 lety +2

    I love your enthusiasm! Great job :)

  • @shadowambush711
    @shadowambush711 Před 6 lety

    Amazing! Straught to the point and easy to understand. Love from Malaysia

  • @sday813
    @sday813 Před 8 lety +2

    This was amazing! Super helpful! Thanks so much!!!

  • @UtterlyFabulous3
    @UtterlyFabulous3 Před 9 lety +1

    Thank you this video helped me a lot! Keep up the good work!

  • @brendamartinez5835
    @brendamartinez5835 Před 9 lety

    Thank you! This is very helpful right now since I'm having trouble with cells.

  • @Abdikarim-Ilkacase
    @Abdikarim-Ilkacase Před 7 lety +1

    Thank you Very Much! very helpful video, and directly going to the point.

  • @Starquasia232
    @Starquasia232 Před 11 lety

    Your voice is so soothing, its so easy to keep up with what you say!!!!!

  • @aljreah2003
    @aljreah2003 Před 11 lety

    You are professional teacher. You know how you deliver the concept to student brains.thank you so much

  • @skullkazor2
    @skullkazor2 Před 11 lety

    Penguin Prof, you have explained mitosis and the cell cycle in 17 minutes better than my biology honors teach could in an hour. This video has helped me soooo much. If you wouldn't mind, I would love to stay in touch with you overtime as my biology class comes along. I think that with your help I could easily make an A

  • @NguyenNguyen-xw8sf
    @NguyenNguyen-xw8sf Před 8 lety

    your video is incredible !!! This is my first comment ever on youtube and I pick yours video! Thank you !

  • @MNAR5
    @MNAR5 Před 11 lety

    I really enjoy watching your videos... they turn words in my Anatomy and Physiology textbook into images and more comprehensible terms. Your videos are really helping me with anatomy... for I am struggling to grasp the concept and apply it in terms to remember. You really are good at what you do and are helping me with these videos. I appreciate it greatly and wish more college professors taught like you

  • @LoraGarcia1
    @LoraGarcia1 Před 11 lety

    Thank you Penguin Prof! Our instructor recommends you and I really love your videos, they are very helpful!

  • @Nuttermom
    @Nuttermom Před 11 lety

    WOW amazing video! I love that you put it in terms that are easily understood. Great job. I am off to check out your other videos.

  • @louisebscgeographyucl8921
    @louisebscgeographyucl8921 Před 10 lety +1

    Thank you this was so helpful!

  • @dror892
    @dror892 Před 11 lety

    Thank you a lot!!
    this is the first video that make me understand the material..

  • @user-zu1oq5px8t
    @user-zu1oq5px8t Před 10 lety

    Thank you so much your speed of teaching suits me just fine!! Appreciate this video in big terms!!!

  • @CUPCAKEBASS
    @CUPCAKEBASS Před 6 lety

    Wonderful and simple explanation!

  • @typewritter7824
    @typewritter7824 Před 8 lety

    Thank you so much. I have a test on cell division, and watching your video made everything make sense.

    • @Penguinprof
      @Penguinprof  Před 8 lety

      +Type Writter I'm so happy to hear it! Good luck on the test!!!

  • @raquelbautista8165
    @raquelbautista8165 Před 7 lety

    Beautiful video, helped me a lot

  • @sh021149kkk
    @sh021149kkk Před 11 lety

    Thank you:) Your video is amazing,you explain this hard topic in an understable and relaxing way

  • @thanks246
    @thanks246 Před 11 lety

    Amazing ideas..great job!

  • @jeanettesmith6950
    @jeanettesmith6950 Před 10 lety

    Awesome video!

  • @theresamaglahus6223
    @theresamaglahus6223 Před 7 lety

    Thank you! Such a big help!

  • @noeldenny1996gmailcom
    @noeldenny1996gmailcom Před 5 lety

    Very helpful..!! Thnku for ths amazng vdo ..

  • @maripeacock15
    @maripeacock15 Před 11 lety

    This video is simply amazing! Thank you so much!

  • @Feinebea
    @Feinebea Před 11 lety

    This is so good- I cannot believe it

  • @Reine0De0Noir
    @Reine0De0Noir Před 10 lety

    Wow! Super! I am less hopeless about my test now! Thank you so much!!! Done,subscribed ; D

  • @AnaSantos-ww7vk
    @AnaSantos-ww7vk Před 10 lety +2

    hey got a midterm tomorrow thank you ^_^ Now tomorrow should be easy !!!!

  • @Touchofsleep
    @Touchofsleep Před 7 lety +20

    i wish my teacher was like you -_-

  • @aimeejeman9920
    @aimeejeman9920 Před 8 lety

    Thank you so much for posting this video. I found it really helpful and hope you'll keep making more! Thank you :)

    • @Penguinprof
      @Penguinprof  Před 8 lety

      +Aimee Jeman You are so welcome! I'm just getting started!!! Stay tuned. :)

  • @christinastabo3175
    @christinastabo3175 Před 8 lety +1

    thank u! helped with my revision alot !!

  • @nasimhaider9124
    @nasimhaider9124 Před 9 lety

    Thanks a lot!!!Your work really made a difference and I hope it will continue to do so. :)

  • @Farah_Saad97
    @Farah_Saad97 Před 8 lety

    Thank you very much :) you made it really easy 🌸

  • @marialagen6829
    @marialagen6829 Před 10 lety

    i totally just failed and test on this, i really wish i would have watched this video before the test you are an amazing teacher

  • @Zoomtzxx
    @Zoomtzxx Před 3 lety

    I just started watching your videos (like... i started today...) and it helps a lot! I'm a medical student watching from Germany and i feel like now one told me before, that S-Phase is for SYNTHESIS - hell that's actually pretty easy to understand! Or maybe i failed listening to my professors... anyway: i got it now, thank you very much!
    And penguins are my spirit animals, too! I can't tell why i didn't find you earlier...

    • @Penguinprof
      @Penguinprof  Před 3 lety

      Well I'm just happy you found me! Welcome to the penguin colony!!

  • @yaya020298
    @yaya020298 Před 10 lety

    i guess i already undersrtand about mitosis very well . Thx a lot !

  • @Nate-ow1sk
    @Nate-ow1sk Před 8 lety

    Great video shared by my biology professor. Thanks for the extra help!!

    • @Penguinprof
      @Penguinprof  Před 8 lety

      +Nathan Jeffery Glad it helped! Thanks for watching!

  • @zakihilmi2609
    @zakihilmi2609 Před 9 lety

    Really helpful! Thanks!

  • @nessababy266
    @nessababy266 Před 9 lety

    Wow thank you so much you made me actually understand what I am learning

  • @piyushsharma-lv7oi
    @piyushsharma-lv7oi Před 9 lety

    ma'am you made me pause that video just at 4:07 minutes to tell you that you are awesome.thanx alot.

  • @coolsox15
    @coolsox15 Před 9 lety

    My textbook uses 'late prophase' instead of 'prometaphase' which i guess is basically the same thing! This was so helpful thank you! xoxo

  • @cathlinburkey6701
    @cathlinburkey6701 Před 10 lety

    Thank you SO MUCH for your videos. I cannot tell you how grateful I am to have found your channel. I subscribed and shared with all my fellow students. I'll be back for sure. :)

  • @alihmede7919
    @alihmede7919 Před 10 lety

    thank u sooooooo muchhhh ur a life savor awesome vid keep uploading!

  • @naureenkhan5404
    @naureenkhan5404 Před 10 lety

    Thank you so much.. Its really informative and so clearly stated

  • @dr.sanjaytandon6899
    @dr.sanjaytandon6899 Před 10 lety

    It was excellent Mam.Thank you.

  • @alexialabating1142
    @alexialabating1142 Před 7 lety

    Omg. Thank you so much! This helped me a lot.

  • @FatiChan18
    @FatiChan18 Před 10 lety

    Nice job , Thanks a lot !!

  • @jordanlmns
    @jordanlmns Před 10 lety +1

    You sound just like Tina Fey. And that is fantastic.

  • @juandediosgarcia447
    @juandediosgarcia447 Před 11 lety

    I'm a MD and a Clinical Geneticist and I found your video amazing. It is able to transform a very complex and a bit boring topic on a really funny and easy episode of living beings. Are you an Alchemist? I also would enjoy a new video about meiosis ... Please ... Many thanks!

  • @alisonh619
    @alisonh619 Před 10 lety

    Thank you! This helped me so much!

  • @emilyrawahi684
    @emilyrawahi684 Před 10 lety

    Thx ... this is really helpful

  • @lizridd
    @lizridd Před 5 lety +1

    this video was the reason I passed my science quiz thank you

  • @twinsox13
    @twinsox13 Před 10 lety

    You explain it just as good as Mr. Anderson (Bozeman) thanks!

  • @rashminegi7948
    @rashminegi7948 Před 6 lety

    Thnk you. It was really helpful 😊

  • @Rona-ru6oe
    @Rona-ru6oe Před 10 lety

    that was really helpful thank you so much

  • @Starquasia232
    @Starquasia232 Před 11 lety

    Thank you so much!! Truly grateful for the review !!!!!

  • @KendrixTermina
    @KendrixTermina Před 10 lety

    Love the narrators enthusiasmXD Gluteal cleft lol.

  • @shafshafeen5220
    @shafshafeen5220 Před 7 lety

    u make learning fun! ! thanks! !😊 keep helping us! !☺

  • @gilliansmith9668
    @gilliansmith9668 Před 8 lety

    This was so helpful! Thanks so much!!

    • @Penguinprof
      @Penguinprof  Před 8 lety

      +Gillian Smith I'm so glad!! Thanks for watching!

  • @haneenz1032
    @haneenz1032 Před 8 lety +2

    Thank you so much!! Your method was great and it really helped me

    • @Penguinprof
      @Penguinprof  Před 8 lety

      So glad to hear it!! Thanks for watching!

  • @Queensyoungbuck
    @Queensyoungbuck Před 8 lety

    PenguinProf4President.
    I say Yes! such a nice outgoing, enthusiastic voice. Could learn from you all day. thanks for your work and sharing with us.

    • @Penguinprof
      @Penguinprof  Před 8 lety +1

      +N Singh Haha!!! LOVE that! Thank you so much!!!

  • @natasha1234568
    @natasha1234568 Před 10 lety

    thanku soo much..dat was gr8..u made it fun nd intresting to learn..luved it :)

  • @FrancoEzequiel250100
    @FrancoEzequiel250100 Před 10 lety

    Muy bueno el video, sigue asi ThePenguinProf
    Very good video, keep it up ThePenguinProf

  • @faisalasil2992
    @faisalasil2992 Před 8 lety

    i have never understood cell division, now i think i do. Great job! keep it up

    • @Penguinprof
      @Penguinprof  Před 8 lety

      +Faisal Asil SO GLAD to hear that! Thanks for watching!

  • @cdarwin1858
    @cdarwin1858 Před 2 lety

    You are an excellent teacher! Thanks for the education 😀

  • @user-dl6cl6eh4n
    @user-dl6cl6eh4n Před 8 lety +1

    Thank you so much.You made it easy to understand.

  • @miaz-white2606
    @miaz-white2606 Před 11 lety

    thankyou this helped so much!!

  • @rekhasimha250
    @rekhasimha250 Před 8 lety

    Thanks a lot for the wonderful tutorial ma'am.

  • @katpandaxx
    @katpandaxx Před 8 lety

    Excellent video! Thank you! :)

  • @colin200011226
    @colin200011226 Před 8 lety

    This is awesome! you are very clear!!! Thank you

    • @Penguinprof
      @Penguinprof  Před 8 lety

      +Colin Alli Thanks for watching!!! You are most welcome!

  • @mohsen5557
    @mohsen5557 Před 8 lety

    Thank you so much for this tutorial
    It is very helpful.

    • @Penguinprof
      @Penguinprof  Před 8 lety

      +‫عبدالمحسن الدريس‬‎ You are so welcome!!

  • @tanyamiller8090
    @tanyamiller8090 Před 9 lety

    Thank u sooo much it is a lot more understandable now! U r awesome!!!!

  • @ninjabreadgirl
    @ninjabreadgirl Před 10 lety

    Thanks for providing this video, you rock! I read Simon's comment up top there... sorry to hear about such a negative response to such a cool video! I wish I could have seen it before it was taken down :( Anyway, thanks again! I have a midterm in a few hours.... AHHH!!!

  • @tpain5974
    @tpain5974 Před 11 lety

    Awesome helped a lot :)

  • @aysekoylu3531
    @aysekoylu3531 Před 8 lety

    That was fun 😃 Thanks a lot!

  • @linhmoon8695
    @linhmoon8695 Před 8 lety

    very good

  • @StackerHero12
    @StackerHero12 Před 10 lety

    Oh My Gosh I want you AS MY TEACHER FOREVER. I LEARNED SO MUCH

  • @mingbuaa
    @mingbuaa Před 7 lety +1

    thanks!! it helped so much! And I learned a lot more cool cell stuff

  • @1996kathir
    @1996kathir Před 11 lety

    thank you very very much......i understood a lot.....

  • @urvichauhan6996
    @urvichauhan6996 Před 10 lety

    WoW!!..I never thought it would be sooo...interesting!! Seriously..! you saved me!.. :D
    I really liked the cool technique of teaching in a not so boring way! ;)

  • @Thepiclolgamer
    @Thepiclolgamer Před 8 lety

    Thank you so much!

  • @lulufufu6280
    @lulufufu6280 Před 10 lety

    I was laughing when she said try to use intergluteal cleft in a pick-up line and wished those people good luck!! That was actually pretty funny.

  • @quinnfabray1167
    @quinnfabray1167 Před 7 lety

    Good video.

  • @swecammi
    @swecammi Před 10 lety

    Thank you very much! You might have saved my grade!

  • @guy4Sweetness
    @guy4Sweetness Před 9 lety +8

    How lucky are your students!

  • @susiefranklin995
    @susiefranklin995 Před 8 lety +1

    what are the stages of cell cycle and mitosis? is there any chance if you could break it down with a quick explaination for each section. Thanks :)