GCSE Biology - Surface Area to Volume Ratio

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  • Опубликовано: 28 ноя 2024

Комментарии • 222

  • @nem3sis760
    @nem3sis760 2 года назад +240

    Today marks the end of my gcses. I just wanted to come back here and say thank you guys so much for being there for me. You have helped me so much throughout these past two years since I found your channel and I have eagerly watched your videos and used the resources you provided everyone to aid my revision and it has made doing my science exams much easier. I was normally someone who struggled with science for a lot of my secondary life, and finding you guys has changed that. Today I'm proud to say its my last day as a Year 11 student and I have just completed my last gcse exam. From the bottom of my heart, thank you for being there for me and other students too. I couldn't even begin to tell you the massive impact you had on me and other students. I wish everyone here who is doing gcses or even A Levels the best of luck next year! Goodbye. I will return here on results day to let you guys know what I got :)

    • @Cognitoedu
      @Cognitoedu  2 года назад +53

      Congratulations! 🎉 Thank you so much for this message, we really appreciate it and we're glad to have been able to help you on the journey through your G.C.S.E's. Best of luck with your results and A-levels next year! 😊

    • @nem3sis760
      @nem3sis760 2 года назад +22

      @@Cognitoedu I'll come back here in August to let you guys know what I get :)

    • @fatimaalramahi9944
      @fatimaalramahi9944 2 года назад +20

      Omg this is so cute and wholesome 😭😭

    • @lolzfriend852
      @lolzfriend852 2 года назад +4

      @@nem3sis760 my godd I’m so excited for u 🏃‍♀️🎉

    • @hu37mo
      @hu37mo 2 года назад +1

      @@fatimaalramahi9944 wholesome

  • @bobbob-xg8jg
    @bobbob-xg8jg 2 года назад +36

    Thanks to Cognito I got 3 9s in sciences and a 9 in maths. I can't put into words how grateful I am for your videos, you've helped me and countless others

    • @edwin_a
      @edwin_a 2 года назад +1

      could i ask what else you did for revision other than the videos? like did you make flashcards, write notes, etc

    • @786azaman
      @786azaman 2 года назад +1

      That's good I'm happy for u ☺️👍

    • @aloyance__
      @aloyance__ Год назад

      How to revise for eng lit and re. Ik this is off topic

  • @pinkmangooooo
    @pinkmangooooo 2 года назад +16

    Dear Cognito, I know this is a bit late but I only got my GCSEs yesterday. I would like to thank you so much for making these videos, you seriously helped so many people. I managed to get all 9s in triple science thanks to you and I am so grateful. Keep up the amazing work!! Thank you so much once again

    • @Cognitoedu
      @Cognitoedu  2 года назад +4

      Ah that's incredible! 👏 Congratulations, we're glad we could help you with your studies!

  • @tommylovesscience
    @tommylovesscience 2 года назад +18

    Heading into my final year of secondary, and studying for my GCSE’s. You’ve helped me so much and I thank you! You’ve genuinely taught me more (Thanks to your website too) than my teacher has in a whole year. I’ll be back to update this comment when I’m done with my GCSE’s! Thank you again.

  • @ficti_an
    @ficti_an Год назад +2

    I discovered this channel back when I started my IGCSEs, and my words cannot describe how much this channel has helped me. Last year, went from a D- in my first semester to an A in my Biology finals thanks to this channel. Thank you so much :)

  • @twicepilled
    @twicepilled 7 месяцев назад +3

    my actual exams are in the next two months this does not feel real😭 anyways your website has helped me so much thank you!!

  • @cosmicsquid1285
    @cosmicsquid1285 2 года назад +3

    Usually I find videos to help with gcse hard to keep my concentration on, but this I can actually watch. Thank you for the help

  • @pinkiepie228
    @pinkiepie228 2 года назад +7

    Oh my God, thank you so much. I literally never thought revision could be fun before you. This whole SA: Vol thing stumped me ngl.

  • @laavanya5206
    @laavanya5206 9 месяцев назад +2

    Summary:
    Larger organisms require speciallised organs like transport systems and exchange surfaces (like villi and alveoli) as they have lower surface area to volume ratio (surface area deceases as the size of organisms increases) and therefore they can’t rely only on diffusion.
    Smaller organisms (mostly unicellular) don’t have and don’t need speciallised organs as they have larger surface area to volume ratio and so they can totally rely on diffusion for the transport of molecules.
    Note: surface area to volume ratio decreases as the organism gets larger and so when the surface area to volume ratio decreases the reliance of diffusion of the organism too decreases and they are more likely to develop a specialized organ.

  • @Maheen.0000
    @Maheen.0000 Месяц назад +1

    hi cognito,
    i just anted to say you have no idea how much you have helped me and countless other people your website is awesome.

  • @crypticski3803
    @crypticski3803 2 года назад +9

    I would like to say thank you so much for all you have done, I went from grade 4s and 5 at the end of year 9, to a grade 8-9 at the end of year 10 ppes, thank you so much, I hope I can do well next year too

  • @apexracing9273
    @apexracing9273 2 года назад +4

    You guys deserve atleast 10 million subs and I am serious

  • @michaellewis9888
    @michaellewis9888 2 года назад +6

    Thank you sir for helping me a lot with studies. Today is a crazy day cause I needed to revise and thanks to you,
    I’m going to my exam completely understanding of everything, thank you for your help and God be with you. Much love ❤️

  • @ejazali4
    @ejazali4 2 года назад +2

    Amadeus, thank you. You got me through my GCSEs.

  • @samuelehtoo9594
    @samuelehtoo9594 2 года назад

    I was about to drop biology off, but then I found this website. After learning here for about 1 week, I've become top of my class and get really interested in biology and want to pursue career in healthcare fields. I just want to thank you so much for this because it's helped me to much.

    • @Cognitoedu
      @Cognitoedu  2 года назад +1

      That's awesome Samuel, we're so glad we could help! Best of luck 😊

    • @Rexus0705
      @Rexus0705 2 года назад

      @@Cognitoedu Hi Cognito. Hope you guys are well. Will you guys keep releasing videos in the future?

  • @silaskapapa784
    @silaskapapa784 2 года назад +4

    You helped me through my Igcse's, thankyou Cognito

  • @user-id6su3nz4q
    @user-id6su3nz4q 2 года назад +1

    i actually love you 😂your website carried me through GCSEs and literally saved them

  • @cursory9031
    @cursory9031 2 года назад

    I remember watching this for past 2 years for my high school examination in March22, never knew I could get the best result I ever had thanks to this channel. Now I'm entering university, wish me luck!

    • @Cognitoedu
      @Cognitoedu  2 года назад

      Thanks for watching! Best of luck with uni!

  • @haadyabdul1683
    @haadyabdul1683 2 года назад +1

    Hey man, I’m just commenting to say that my IGCSEs results came out and I got an A* in coordinated science (all 3 combined) Thank you for all the videos!

  • @killer_arzz7474
    @killer_arzz7474 Год назад

    Sir u hv helped me pass my test with last minute studying, I wish you and your family and family the best of the best. Thank you so much for your dedication, Please continue contributing to the betterment of us student.

  • @Brados-nt9xl
    @Brados-nt9xl 2 года назад

    I just got my results for my gcses I got an A in physics and a B in chemistry. I am so happy and I honestly dont think I could have done that without you!!!!

    • @Cognitoedu
      @Cognitoedu  2 года назад

      👏👏 Well done Brados, we're happy we could help!

  • @dessieg6211
    @dessieg6211 2 года назад +2

    Studying for my final biology exam and this video greatly helped me, thank you!! Recommending it to all my biology friends :))

    • @Cognitoedu
      @Cognitoedu  2 года назад +1

      Glad it helped! Thanks for sharing!

  • @thegreatconspiracypodcast8384
    @thegreatconspiracypodcast8384 2 года назад +1

    Thank you so much this might be another one of those comments but on the bus to school before my maths gcse which I was already under prepared for I watched some of your maths videos I can say with confidence that you have helped me push my grades way up. Honestly I learnt more on that bus ride that I have learnt in class.

  • @floatiee
    @floatiee 2 года назад +1

    Hello, I'm currently in year 9 and have mocks in February and igcses in may (I'm homeschooled), I just wanted to say THANK YOU SO MUCH for creating this channel and taking your time to make these amazing videos!

  • @not...not...no.643
    @not...not...no.643 2 года назад +9

    hey! just to let you know, your website is really really helpful. I've been using it ever since it launched and I can see the improvement in my confidence in all three sciences. Appreciate your efforts 💯💯

  • @Hanan-xl9km
    @Hanan-xl9km 2 года назад

    Hi cognito, I’ve just received my gcse results and got a 99 for science. I’m so happy and it’s all thanks to ur very helpful and educational videos that made my science journey easier for me. ❤️❤️💓💓💗💗💕💘💝

    • @Cognitoedu
      @Cognitoedu  2 года назад +1

      That's awesome Hanan! Congratulations! 👏

  • @sundayisfunday1354
    @sundayisfunday1354 2 года назад +2

    I know that u have heard this a lot but I too want to thank from my part that you truly are a life saver. Whoever gave the idea of making this channel bless them & the people who are doing hardwork in maintaing this channel. No words can express the gratitude.
    Next year I have my gcse exams but I am worried how will I do in other subjects in A levels without your channel's support T-T.
    Just a request if u can do make A level videos too. Perhaps on a new channel...
    Anyways thank you for the great to the point content you provide.
    May your channel grow even more!

  • @tiarafatimaazzahrabenttahe8539
    @tiarafatimaazzahrabenttahe8539 2 года назад +5

    Just wanna say I really thank you for the explaining about this subject , even thought I’m study at school in village ( use my capital language = indonesian ) , but because you I can improve my English especially in listening + improve my brain about chemistry and biology 😅

    • @Cognitoedu
      @Cognitoedu  2 года назад +1

      Ah that's awesome Tiara! Thanks for watching 😊

  • @sarutouzochia2680
    @sarutouzochia2680 2 года назад +7

    This was on our 2022 biology paper 1 higher

  • @evah
    @evah 2 года назад

    Hi, I don't often comment, but thank you so much for all the help and explanation for all the sciences, especially Biology. It's been amazing knowing that I can rely on every video being relevant and understandable, as well as the beautiful animations. Thank you Cognito, it's truly the end of an era 💜

    • @Cognitoedu
      @Cognitoedu  2 года назад +1

      Well we really appreciate, thank you Eva! We're glad we could help 😊

    • @cqral4229
      @cqral4229 2 года назад

      @@Cognitoedu why did you stop?❤

  • @hassansahal1743
    @hassansahal1743 2 года назад

    Just finished watching the whole biology play list in less than 12 hours, as revision for my exam tomorrow. Hope it proofs useful.

  • @sophiaj4488
    @sophiaj4488 2 года назад +3

    i love this channel, each video I watch is so helpful!

  • @M0Hamza9
    @M0Hamza9 2 года назад +1

    I have an test on Sunday and I’ve been using you since the last week for practice, wish me luck 😅

  • @taragaur8369
    @taragaur8369 2 года назад +3

    I just wanted to say THANK YOU SMMM for all the help during my gcses!!! I got all 9's for bio chem and physics and ur videos helped me sm :)

    • @Cognitoedu
      @Cognitoedu  2 года назад +1

      Ah congratulations Tara, that's great! Glad we could help 😊

  • @TEGbruh
    @TEGbruh 2 года назад

    Thank you, because of you and this channel I was able to obtain the highest grade possible for chemistry.

  • @aaminahz2276
    @aaminahz2276 2 года назад +1

    Your channel and website is really helping me to understand science. Your videos are really interesting and you explain everything clearly (a lot of the time, better than my teachers). Thank you so much!

  • @RoriSeral
    @RoriSeral 4 месяца назад

    I love this channel so much😭😭easy and straight to the point

  • @IfrairamIram
    @IfrairamIram 2 месяца назад +1

    ❤ this is much helpful but I have got an issue that if some any digit number is been here what should we all do

  • @en3rgy906
    @en3rgy906 2 года назад

    thanks so much ur voice is so calm and relaxing which helps me concentrate i was able to achieve grades 7s with 1 - 2 days with cognito rather than through my teacher in years (was at a grade 5)

  • @rayhanaslam3371
    @rayhanaslam3371 2 года назад

    mocks next week, thank you man your a life saver.

  • @shr07i
    @shr07i 2 года назад +1

    so so helpful for iGCSE students as well your platform has been extremely helpful and im so grateful for these videos. it really helps me for my exams! thank you

  • @has1219
    @has1219 2 года назад +2

    These videos are so helpful! Just curious when the next one is coming as it's been 4 months now.
    Also, you've mentioned that there will be new videos based on trigonometry in GCSE Maths, and are those still going to come, they'd be super helpful for me!
    Thanks for these great educating videos, they've helped we improve greatly in understanding the subjects much better!

  • @Countdown420
    @Countdown420 2 года назад +1

    You are actually the best

  • @ipeka14
    @ipeka14 2 года назад +1

    your videos helped so much while studying for my igcses, im so happy with the grades i got and its thanks to this channel! im moving on to A level now and i was wondering, are you ever planning on making videos for A level?

  • @Vafe17
    @Vafe17 2 года назад

    I just wanted to thank you for the help you gave me on my GCSEs, I hope my efforts paid off and paired with your amazing videos I’m hoping for good grades, for the entire team at cognito I thank you for your help and amazing videos.

    • @Cognitoedu
      @Cognitoedu  2 года назад +1

      Ah you're very welcome J Lott! Best of luck with your results 👍

  • @jibzzztm
    @jibzzztm 2 года назад +1

    Congrats on 300k with 400 vids

  • @pragyagupta3329
    @pragyagupta3329 2 года назад +1

    Omgieee THANK YOU SO MUCH for your videos. They are really helpful. Lots of love from India!!

  • @mohammadzaman6823
    @mohammadzaman6823 2 года назад

    Bro I just honestly wanted to say thank you u helped to get amazing marks love u brother

  • @naho438
    @naho438 Год назад

    I’m in 9th grade right now advanced level, I’m just starting to watch your video my finals are in one week or 2 my biology exam is the third one so I don’t have a lot of time and my clas exam is gonna be this week I didn’t bad in thr past 2 so I hope I can understand fast!

  • @omarmalkawi1383
    @omarmalkawi1383 2 года назад

    Really helped thank u so much i had an exam and u helped me sm

  • @Aneesah96
    @Aneesah96 10 месяцев назад

    Thank you for creating and producing your videos. They are a massive help to me, especially for my learning style: simple and concise. I am doing my GCSE’s this year and I am very grateful. Also, just thinking ahead, I was wondering if you are planning on ever making A level content videos as they would be a great aid in mine and I’m sure many other student’s learning journeys.
    Overall, I just wanted to give thanks for all the effort you put into your videos. 🎉

  • @sui9452
    @sui9452 2 года назад +1

    Thanks to you I got a 8-7 in my double science ☝️

    • @Cognitoedu
      @Cognitoedu  2 года назад +1

      Great stuff - congratulations and well done for all your hard work!

  • @srinithichakraborty6702
    @srinithichakraborty6702 2 года назад

    hey!!!! you really helped me for my biology exam. I got a 4 which is what I was aiming for since i got a U (but i think that it was not my fault as the diagrams were printed badly) last year, Thanks!!!

  • @itsmaherferas
    @itsmaherferas 2 года назад

    You are literally a life SAVER!!! thank you sooooooo much for EVERYTHING... the physics, Chemistry, math and biology.
    I just wanted to ask you, will you still make videos about genetic modification and use of microorganisms in production of food such as yogurt and wine?

  • @saimayounas4301
    @saimayounas4301 Год назад +1

    I am surprised this channel gets so low views!!! They doent deserve that for their massive help. So do em a favor and share the video!!!!

  • @habeebakhanam5779
    @habeebakhanam5779 2 года назад

    Your guys videos has helped me immensely for my gcse's , could you guys make videos like these for common A levels like maths and the sciences,thankyou for all the help you guys have given.

  • @theeditlegend
    @theeditlegend 10 месяцев назад

    Thanks for this video, Cognito! You have really helped me get all the key knowledge for my upcoming exam into my head!

  • @Nego-h
    @Nego-h 2 года назад

    I love ur videos and I understand every thing and this channel needs to be bigger !!

  • @thegeekaboveall2711
    @thegeekaboveall2711 2 года назад

    honestly your visuals are stunning you should make flashcards!

  • @mustafaabdelkarim4255
    @mustafaabdelkarim4255 2 года назад

    Hello I am actually studying IGCSE and I want to thank for your effort, you'r such a great guy!
    I want to ask why is the CHEMISTRY exam Qs by Topic are not working ?

  • @nevasimsek4027
    @nevasimsek4027 2 года назад +7

    These videos are really helpful, thank you :) Could you please do one one the nitrogen cycle ? Those of us doing OCR Gateway would really, really appreciate it.

  • @Tom-nl8vp
    @Tom-nl8vp 2 года назад +1

    Hey Cognito please can you do GCSE computer science as another subject you teach please, that would be lovely???🙏

  • @MumtozaMirzaakhmedova
    @MumtozaMirzaakhmedova 2 года назад +1

    wouu it's very helpful thanks!!!!!!!

  • @cappercorps7430
    @cappercorps7430 2 года назад +1

    What are your plans for the next subject

  • @StefanCO1234
    @StefanCO1234 2 года назад

    Your site is relly good ,could you please make sure that all videos are linked to their topic please
    Thank you

  • @ciaraduffy4217
    @ciaraduffy4217 2 года назад

    Hi there,
    I am a science teacher and I think you channel is great. I always recommend it to my students.
    I really love the layout of your presentations. I am wondering, would you mind telling me what app you use to make your presentations?
    Best wishes,
    Ciara

    • @Cognitoedu
      @Cognitoedu  2 года назад +1

      Thanks for the kind comment! This one was made using sketchbook on the iPad, and iMovie - in a bit of an unintuitive process. These days we use Adobe after effects :)

  • @ibraking_1939
    @ibraking_1939 2 года назад

    I used the best website there is for science and it was your's cognito, So can u please add A-level biology videos made by u. I'm sure it would help u more than it will help me.

  • @ozzydizzy
    @ozzydizzy 2 года назад

    I think you guys should also make videos on GCSE English, that way it will be so much easier to study for our exams

  • @jerbey8405
    @jerbey8405 2 года назад

    bit of a late thankyou, but your website with the videos and questions saved me during gcses and now im studying biology for an a level. You taught me more then anything ive ever learnt at school. tysm

  • @Wojbest_YT
    @Wojbest_YT 2 года назад

    congrats on 300k keep making great videos

  • @nickyduese3948
    @nickyduese3948 Год назад +1

    Please,how do you make your videos

  • @incognitooooooooooooo123spy
    @incognitooooooooooooo123spy 2 года назад

    thank you so much for creating these videos and also the website which are so helpful and helped me during my gcse revision
    thanks to you i got a 9-8 in combined science and im so happy
    you guys are amazing💗

    • @Cognitoedu
      @Cognitoedu  2 года назад

      You're very welcome and congratulations, those are great results 👏

  • @not...not...no.643
    @not...not...no.643 2 года назад

    hope you dont mind me pointing out, there's a slight mistake in the topic names for edexcel higher physics: topic 6 is named radioactivity which is correct, but then topic 7 is also named radioactivity when it should be astronomy. as ive already said, the website is incredible thank you so much🌟🌟

  • @M0Hamza9
    @M0Hamza9 2 года назад

    You have absolutely helped me so much! I am using your website and feel really confident for my gcse next year 🤩 thanks mate

  • @yemen9219
    @yemen9219 Год назад

    Thanks for teaching me something my teacher can't

  • @xdkl3907
    @xdkl3907 2 года назад

    Are all of these videos including maths and all the sciences compatible for IGCSE like Edexcel?

  • @PhonkAttack4DX
    @PhonkAttack4DX Год назад +1

    why did you keep saying 'specialized exchange surfaces' when it showed specialized exchange systems?

  • @mimisolo7778
    @mimisolo7778 2 года назад +1

    Cognito should do a course on psychology

  • @paulmurfin5730
    @paulmurfin5730 2 года назад +1

    Hi On your main website could you add the ability to print out all the papers and questions by subject in one go rather than each one individually?

    • @mimisolo7778
      @mimisolo7778 2 года назад

      That's a really good idea yes please

    • @paulmurfin5730
      @paulmurfin5730 2 года назад

      Absolutely brilliant videos and website btw my daughter puts you up there alongside Zeus ! 😀

  • @felicialaw4285
    @felicialaw4285 2 года назад

    This is so helpful! Thank you for your hard work! I loved all your videos!

  • @siobhan2395
    @siobhan2395 2 года назад

    please make a video on calculation area of composed objects

  • @MitchuMax2327
    @MitchuMax2327 2 года назад +1

    Did anyone notice that this is the 400th video of this channel?

  • @bueno1738
    @bueno1738 2 года назад

    this is just a suggestion
    you should do gcse geography if you want

  • @SamirKhan-ee6bd
    @SamirKhan-ee6bd 2 года назад

    What tools did you use to make such amazing videos.

  • @Rexus0705
    @Rexus0705 2 года назад +1

    Hi , you guys ok? Haven't uploaded in a while

  • @blackpinkinyourarea3002
    @blackpinkinyourarea3002 Год назад

    Heyy!!
    Your videos are very catchy and easy to follow along. Especially the website’s amazing, I’m being able to judge my progressions and being able to work more on the weaker one. I’d like to make a request to you to pls cover up the computer science topics for the O- Levels as well since there aren’t much content creators for it like for physics, chemistry etc.. Hope you’ll do it soon, and thank you once again

  • @mubashsharamaliha9763
    @mubashsharamaliha9763 2 года назад

    Can you please suggest why I’m not getting the CIE 2023 -2024 course selection option in the website?

  • @basaaaan
    @basaaaan 2 года назад

    your website is sooo helpful 💪😎

  • @HerkusM
    @HerkusM 2 года назад

    Could we possibly get a level physics videos for when I go to sixth form?

  • @jax1296
    @jax1296 2 года назад +2

    Can you add your new updated osmosis video to your biology playlist. It’s annoying me. 😉

  • @MLearners
    @MLearners 2 года назад +1

    Can you make year 7,8,9,10 videos?

  • @pharaoh5633
    @pharaoh5633 2 года назад +7

    0:23 large multicellular what

    • @saraibrahim9361
      @saraibrahim9361 2 года назад +2

      He said organisms

    • @blackholedividedbyzero
      @blackholedividedbyzero 2 года назад +4

      I guess I need to clean my ears with shovel.

    • @awais9130
      @awais9130 2 года назад

      @@blackholedividedbyzero Nah it sounds like orgasms

    • @bxltyy5731
      @bxltyy5731 2 года назад +2

      how is my mind gonna do me dirty even when im revising ._.

  • @markmark3970
    @markmark3970 2 года назад

    Thanks a lot, this really helped me.

  • @MaythadarCho-om8cy
    @MaythadarCho-om8cy 2 года назад

    can you do more videos? I do really like your videos. it's help me a lot😇

  • @thehunterwr4666
    @thehunterwr4666 2 года назад

    Hey guys I love your vids they help me a ton! I wanted to say when are you working on your next video? And what might it be

  • @Priya-r2x
    @Priya-r2x 2 месяца назад

    where can i find the resources for revision?

  • @snowbunny00
    @snowbunny00 2 года назад

    I have a request to make... Can you make a video on Biotechnology plss!!! Anyways, Thanks for helping with Biology as always...

  • @ahuman2398
    @ahuman2398 2 года назад

    thank you so much for making these videos theyre really helpful

  • @nakshathira7764
    @nakshathira7764 2 года назад +1

    Heyy I really love your website... I would really appreciate it if you could post topic questions for Edexcel As level, chemistry, biology, physics; 21 of my friends are willing and would be glad to engage in your website too!!
    Thanks

    • @Cognitoedu
      @Cognitoedu  2 года назад

      Thanks Naksharithra, we'll look into it 👍

  • @cqral4229
    @cqral4229 2 года назад

    Have you stopped you really help me