Biology - How the Kidneys Work - (Kidneys Part 1/3) #27

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  • Опубліковано 31 тра 2024
  • This video covers:
    - The 3 main functions of the kidneys:
    1) removing waste,
    2) regulating levels of ions, and
    3) regulating levels of water
    - How the kidneys can achieve all of this using filtration and selective reabsorption
    - How anti-diuretic hormone (ADH) is used to control water levels
    Exam board specific info:
    AQA - Separate science only. The ADH part is higher tier only.
    IGCSE - Separate science only
    Edexcel - Separate science only. The ADH part is higher tier only.
    OCR 21st Century - Separate science only. The ADH part is higher tier only.
    OCR Gateway - Separate science only. The ADH part is higher tier only.
    Maths Playlist:
    • GCSE Maths (9-1)
    GCSE Chemistry playlist:
    • GCSE Chemistry - Atoms...
    GCSE Biology Playlist:
    • Video
    GCSE Physics Playlist:
    • Video

КОМЕНТАРІ • 123

  • @at7x700
    @at7x700 4 роки тому +354

    Bro, I can't thank u enough for all of these free lessons I love your video’s and they literally got me an A in chemistry even tho I know you don't make any profit from this. God bless you man your an amazing person and very kind and thank you again

    • @Cognitoedu
      @Cognitoedu  4 роки тому +87

      Hey thanks for such a lovely comment! Really great to hear you’ve found the videos helpful - and we really appreciate your support! Good luck with all your work 🙌

    • @richa9076
      @richa9076 3 роки тому +25

      they earn ad revenue so they do technically earn from this but great stuff either way

    • @eragon1378
      @eragon1378 3 роки тому +10

      @@richa9076 a year ago he had 30k subs...so no he didn't earn anything.

    • @user-nd2qj9ey7i
      @user-nd2qj9ey7i 2 роки тому +4

      @@Cognitoedu im with that guy. thankyou so much for what you do

    • @ss-hc7tb
      @ss-hc7tb Рік тому +5

      @@eragon1378 you only need 1000 to get revenue

  • @Matt-xh7wq
    @Matt-xh7wq 3 роки тому +291

    Post-Video quiz:
    1. What 3 things do the kidneys regulate? (0:05)
    2. What are the 3 main jobs of the kidneys (0:24), (0:50)
    3. What is deamination? (0:38)
    4. Why is water regulation important? (1:57)
    5. What are nephrons? (2:50)
    6. What are tubules? (3:00)
    7. How are water levels regulated in the body? (4:29)
    8. What is ADH and what does it stand for? (4:56)

  • @chimpu-ls5fg
    @chimpu-ls5fg 3 місяці тому +26

    cognito - i just had my mocks and I got an average of 90% on all my sciences solely due to your channel. I really appreciate your help!

  • @DeyshaanGTR
    @DeyshaanGTR Рік тому +17

    Let’s goo we all have our paper 1 tomorrow Tysm and good luck inshallah we do well ❤️

    • @livsmeasservy3334
      @livsmeasservy3334 Рік тому +7

      u didnt need any of this for paper 1... its all paper 2

    • @imbisatfajjar
      @imbisatfajjar 14 днів тому

      ​@@livsmeasservy3334 exactly 💯

  • @Puffin663
    @Puffin663 Рік тому +26

    i don't know how to thank you for these great lessons... these lessons made me love biology and i scored 86 in my bio exam... keep up this great stuff 🙂

    • @Cognitoedu
      @Cognitoedu  Рік тому

      Really happy to hear it helped, thanks for the comment!

  • @ifesjournal
    @ifesjournal 3 роки тому +35

    you guys need to make textbooks, your drawings are amazing

    • @Cognitoedu
      @Cognitoedu  3 роки тому +10

      aw thanks ifesjournal!!

  • @foteinikalamatianou5588
    @foteinikalamatianou5588 3 роки тому +33

    You guys are genuinely awesome! It took me hours to understand this for my unit tests throughout the year and now all I had to do for my mocks was watch your videos once or twice. Thank you so much!

    • @Cognitoedu
      @Cognitoedu  3 роки тому +5

      Thanks Foteini, we really appreciate it 😊

  • @yanxue1788
    @yanxue1788 6 місяців тому +6

    Thank you so much for this incredibly well-explained educational video! Your clear and concise delivery made it easy for me to grasp the concepts. I appreciate the effort you put into creating valuable content. Keep up the great work! 👍

  • @abdullahnisar3941
    @abdullahnisar3941 3 місяці тому +2

    Definitely the best teacher on UA-cam I have ever seen. Thanks for these videos.

  • @avg8185
    @avg8185 3 роки тому +3

    An amazing, compact and thorough explanation, thank you so much!

  • @siyasingh6076
    @siyasingh6076 5 місяців тому

    I love how you keep your car in your house...anyways, COGNITO YOU DA BEST!!! People like you are the true heroes of our civilisation.

  • @danielgeorge9217
    @danielgeorge9217 3 роки тому +16

    Thanks I have external exam coming up really soon this has helped me thanks

  • @yeetbys2452
    @yeetbys2452 4 місяці тому

    Cognito Thank you so much for your videos that you post. When we were learning about the kidney my teacher warned us that it would be the hardest unit ever. At first I believed her but after seeing your amazing videos you made it seem so easy❤❤❤

  • @kgalalelokeafetole1818
    @kgalalelokeafetole1818 Рік тому +5

    I appreciate ur work it helped me a lot and I passed my mock exams and I finally got a phone so once again thank you 🙏🏽 😊☺️

  • @astrolance1
    @astrolance1 5 місяців тому

    that house cleaning analogy made me understood EVERYTHING. i was so confused why dont the kidneys selectively absorb everything in one go at the renal tubule but the house analogy made everything clear

  • @deborahsabaoth3103
    @deborahsabaoth3103 6 місяців тому

    You're the best, I salute you. Your teachings makes me understand best. Thank you so much 💓

  • @imbisatfajjar
    @imbisatfajjar 14 днів тому

    Better explanation then my older brother and my school teacher and this vedio is very good and thanks for explaining it makes me understand alot

  • @syedajaveriaqazi838
    @syedajaveriaqazi838 Рік тому +1

    Amazing video, the video explains each and everything 👍👍

  • @pyxisnub
    @pyxisnub 8 місяців тому

    thank god there is this video i accidently left my papers at school and there's going to be a pop quiz tomorrow im so glad this video exist tho some infomation i havent learnt yet its still good to learn it in case

  • @imalikumarasinghe4065
    @imalikumarasinghe4065 7 місяців тому

    These are soo goood even my teacher shows during class! Keep up the good work!

  • @sammiller9889
    @sammiller9889 8 місяців тому

    I cant believe I learned so much in 7 minutes, thank you so much

  • @radmehrkhalilnejad8101
    @radmehrkhalilnejad8101 4 роки тому +7

    Man I love this channel

    • @Cognitoedu
      @Cognitoedu  4 роки тому +1

      Aha thank you for your support! Really glad you’re finding the videos helpful 🙌

    • @rayhanislam8005
      @rayhanislam8005 3 роки тому

      Same here mate

  • @soohyun1607
    @soohyun1607 Рік тому +2

    These videos really help me understand the topics covered. Thank you.

    • @thatluigi
      @thatluigi 11 місяців тому +1

      u got paper 2 tmr?

  • @pic01
    @pic01 2 роки тому

    Thank you so much for this youtube channel. I love it so much

  • @elmazehrarizvi275
    @elmazehrarizvi275 3 роки тому

    Thanks for your guidelines!!!!

  • @Anne-yf4ny
    @Anne-yf4ny Рік тому +1

    2:40 Never in my life, thought I would go like 'Aw these kidneys are soOo cUte!'

  • @Cognitoedu
    @Cognitoedu  2 роки тому +10

    If you’d like to practise what's covered in this video, check out the lesson on the Cognito platform - cognitoedu.org/coursesubtopic/b2-gcse-aqa-h-t_4.09. The platform’s totally free, and has been built to make learning and revision as easy as possible. The main features are:
    - Lessons organised by topic, only the lessons relevant to your specific exam board and tier are shown.
    - Automatic progress tracking. Progress bars tell you what you’re doing well at, and what you need to spend some time on.
    - Practise quizzes so you can test your knowledge. You can quiz yourself on any combination of topics you like.
    - A huge number of fully-hinted questions that take you step-by-step through some of the trickiest calculations & concepts.
    - A comprehensive bank of past exam papers, organised both by year, and also by topic.
    Amadeus & Tom

  • @miriellemills111
    @miriellemills111 11 місяців тому

    Thank you so muchh! May God richly bless you❤

  • @jessie07
    @jessie07 2 роки тому +13

    my biology gcse is in two days, and i've missed a few important lessons but thanks to your videos, they are really good at making me understand! i don't have high hopes for an a or a*, but i'm hoping for a b!!

    • @rockstormv3911
      @rockstormv3911 2 роки тому +3

      Good luck! Im sure you're gonna do just fine

    • @jessie07
      @jessie07 2 роки тому +1

      @@rockstormv3911 thank you!!

    • @mynameispie8442
      @mynameispie8442 2 роки тому +2

      @@jessie07 howd it go. btw i dont even do this just enjoy learning

    • @jessie07
      @jessie07 2 роки тому +1

      @@mynameispie8442 honestly, i think it went great! not too hard, but def not easy. just waiting for results day to see what grade i get :)

    • @amzy1082
      @amzy1082 Рік тому +1

      @@jessie07 what were your results in biology I hope you did well and got a good sixth form

  • @RisingSigma.
    @RisingSigma. Рік тому

    I love you,Inshallah you will get what you deserve granted to you. Youre the best person.

  • @KyarisiimaBrenda-vj5uk
    @KyarisiimaBrenda-vj5uk 15 днів тому

    Thanx so much 4 ur lessons

  • @maham5289
    @maham5289 3 роки тому

    hi cognito ure videos are simply amazing litrally covers everything amazingly

    • @Cognitoedu
      @Cognitoedu  3 роки тому

      Thanks Maham, glad you're enjoying them 👍

  • @misakichan5022
    @misakichan5022 8 місяців тому

    This is a great video.

  • @LynxMajic
    @LynxMajic 3 роки тому

    Awesome, thank you!

  • @mohammadibrahim4502
    @mohammadibrahim4502 2 роки тому +2

    2 different professors and each one took 2 hours, and you beat them in 7 minutes

  • @whyyoulooking4944
    @whyyoulooking4944 3 роки тому

    U are the best channel

  • @aimenabbasi2728
    @aimenabbasi2728 2 роки тому

    anyway thanx 4 the videos they really help!!

  • @zakariyeidiriz7514
    @zakariyeidiriz7514 Рік тому

    Thanks bro how you paid your time to understand me useful lessons in this channels

  • @joannafound
    @joannafound 3 роки тому +1

    Thank you so much I have 3 tests tomorrow so didn’t really have time to revise for them all. But your videos are very helpful.

  • @ciaratwicebetween1257
    @ciaratwicebetween1257 7 місяців тому

    Beacause of this i passed my biology final examthank u

  • @vaneeza7867
    @vaneeza7867 4 роки тому +7

    Omg this is really helpful thank you!! The lil drawings are so cute🥺

    • @Cognitoedu
      @Cognitoedu  4 роки тому +4

      Aha cheers! Glad it was helpful 😁

  • @teganstarkey1620
    @teganstarkey1620 3 роки тому +1

    these videos r goated

  • @hongpengvs
    @hongpengvs 2 роки тому +5

    The drawings are sooo good and helpful. Keep up the work! (And give your artist a raise! :) )

    • @Cognitoedu
      @Cognitoedu  2 роки тому +2

      Thank you, really appreciate you taking the time to say! - Tom

  • @aberrante2590
    @aberrante2590 8 місяців тому

    Thank you so MUCH !!!!!

  • @nabiha5942
    @nabiha5942 3 роки тому +1

    hi... According to many books...the idea about nephrons and other ions and water is not included in CIE biology syllabus.. kindly guide me if i am wrong.... THANK YOU

  • @usedtoxanny9158
    @usedtoxanny9158 Рік тому +1

    THANK YOU SO MUCH WOW

  • @haiderkhan4782
    @haiderkhan4782 3 роки тому +1

    really helpful. can you please do a video on the nitrogen cycle, as I find that topic really confusing..

    • @csgetdegrees1594
      @csgetdegrees1594 2 роки тому +1

      UA-cam - C'sGetDegrees - Playlists - Biology - Comments
      Request the topic :)

  • @lsmxsm
    @lsmxsm 4 роки тому +4

    hi i want to know if kidney has already absorbed glucose (during the first stage ultrafiltration) why would it reabsorb glucose again (during selective reabsorbption stage)

    • @strangersinbedband9986
      @strangersinbedband9986 3 роки тому +1

      the kidneys have a filter, and as glucose is fairly small in size it passes through the filter, where blood cells and proteins do not. But as the body needs the glucose, it is selectively reabsorbed. It's not a perfect system, basically the kidneys don't really want to absorb the glucose but because its so small it passes through the filter along with the mineral ions, urea, etc.

  • @howardkache9536
    @howardkache9536 3 роки тому

    thanks

  • @sangeenazmat61
    @sangeenazmat61 5 місяців тому

    I f**king love this channel ❤

  • @tigress0076
    @tigress0076 3 роки тому

    Lol the seismometer that was in the house at 4:20🤣

  • @AM-we3if
    @AM-we3if 4 роки тому

    Thank youu this is so helpful !

    • @Cognitoedu
      @Cognitoedu  4 роки тому +2

      You’re super welcome! Thanks for leaving us a comment (it really helps the videos to get seen)! Good luck with all your work 🙌

  • @arnavkasireddy4141
    @arnavkasireddy4141 25 днів тому

    Is this on paper 1? thanks

  • @sabreenahussain215
    @sabreenahussain215 4 роки тому +2

    hey what exam board do you specify

    • @Cognitoedu
      @Cognitoedu  4 роки тому +10

      Hi Sabrina! These kidney videos will tell you all you need to know for AQA, OCR, Edexcel, and IGCSE :)

  • @xxocean_tearsxx4753
    @xxocean_tearsxx4753 2 роки тому +1

    Wait quick question.... do I need to revise this for gcse in 2022 this year for paper 1?

  • @tezawr3963
    @tezawr3963 2 роки тому

    Thanksssssssssssssss!

  • @aimenabbasi2728
    @aimenabbasi2728 2 роки тому +4

    Did u taste your sweat??lol

  • @studytime7182
    @studytime7182 Рік тому

    4:17 so noones gonna talk about how he left his car outside

  • @MitchuMax2327
    @MitchuMax2327 3 роки тому

    Wow, first time seeing 999 likes

  • @phantomtigers3465
    @phantomtigers3465 2 роки тому

    why do kidneys are have 2 when is not be always donate without book ? Igcse not must for is? BEcause but thank you because now i has understand the thibg abd yes i has sub to you

  • @zoes8785
    @zoes8785 3 роки тому

    algorithm

  • @accessnft1702
    @accessnft1702 5 днів тому

    2024 ?
    Am cooked

  • @aykuxx3567
    @aykuxx3567 2 роки тому

    ks um bio

  • @user-ks7ol9eo8y
    @user-ks7ol9eo8y 6 місяців тому +1

    Go get a life bro

    • @Ruby-ed9ti
      @Ruby-ed9ti 6 місяців тому +1

      what's ur problem bro, he's giving us free lessons and all u have to do is sit here and hate??? like I think you should get a life and stop wasting it spreading hate about poor cognito

    • @user-ks7ol9eo8y
      @user-ks7ol9eo8y 6 місяців тому

      1. He cant teach to save his life
      2. He teaches from the wrong spec
      3. He is draining our economies resources doing this
      4. He would be more useful in some other era of employment, eg picking cotton
      5. Thx for subscribing!!
      6. He doesn't know how to pin his own comments @@Ruby-ed9ti

  • @augustinemendez8344
    @augustinemendez8344 Рік тому

    Cognito- the best visual explanation in the world 😎😎

  • @user-FUCKYALL
    @user-FUCKYALL 2 місяці тому +1

    my bio exam tmrw, guess i’ll always be here eh.