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GCSE Biology - Specialised Exchange Surfaces
This video covers:
- What exchange surfaces are
- The key features of exchange surfaces
- Specific examples including alveoli, villi, root hair cells, and leaves
Maths Playlist:
ua-cam.com/play/PLidqqIGKox7XPh1QacLRiKto_UlnRIEVh.html
GCSE Chemistry playlist:
ua-cam.com/video/fN8kH9Vvqo0/v-deo.html
GCSE Biology Playlist:
ua-cam.com/video/--dIBinUdeU/v-deo.html
GCSE Physics Playlist:
ua-cam.com/video/aHVJfRxeAxo/v-deo.html
Переглядів: 95 504

Відео

GCSE Biology - Surface Area to Volume Ratio
Переглядів 113 тис.Рік тому
This video covers: - What surface area to volume ratio means - How to calculate surface area and volume - Why large organisms need specialised exchange surfaces and transport systems Maths Playlist: ua-cam.com/play/PLidqqIGKox7XPh1QacLRiKto_UlnRIEVh.html GCSE Chemistry playlist: ua-cam.com/video/fN8kH9Vvqo0/v-deo.html GCSE Biology Playlist: ua-cam.com/video/ dIBinUdeU/v-deo.html GCSE Physics Pl...
GCSE Biology - Levels of Organisation - Cells, Tissues, Organs and Organ Systems
Переглядів 232 тис.Рік тому
This video covers: - What a cell is made up of - How a tissue is a group of similar cells that work together to perform a common function - How an organ is a group of different tissues that work together to perform a common function - What an organ system is Maths Playlist: ua-cam.com/play/PLidqqIGKox7XPh1QacLRiKto_UlnRIEVh.html GCSE Chemistry playlist: ua-cam.com/video/fN8kH9Vvqo0/v-deo.html G...
GCSE Biology - Enzymes - How Temperature and pH Affect Rate of Reaction
Переглядів 125 тис.2 роки тому
This video covers: - How temperature affects enzymes and the rate of reaction - How pH affects enzymes and the rate of reaction - Why enzymes denature - Was optimum temperature and optimum pH mean Maths Playlist: ua-cam.com/play/PLidqqIGKox7XPh1QacLRiKto_UlnRIEVh.html GCSE Chemistry playlist: ua-cam.com/video/fN8kH9Vvqo0/v-deo.html GCSE Biology Playlist: ua-cam.com/video/ dIBinUdeU/v-deo.html G...
Binary Fission - How Do Bacteria Divide? #12
Переглядів 124 тис.2 роки тому
This video covers: - How bacteria divide by binary fission - How to calculate bacterial population growth - The optimum conditions for bacterial growth Maths Playlist: ua-cam.com/play/PLidqqIGKox7XPh1QacLRiKto_UlnRIEVh.html GCSE Chemistry playlist: ua-cam.com/video/fN8kH9Vvqo0/v-deo.html GCSE Biology Playlist: ua-cam.com/video/ dIBinUdeU/v-deo.html GCSE Physics Playlist: ua-cam.com/video/aHVJfR...
GCSE Biology - Differentiation and Specialised Cells #10
Переглядів 212 тис.2 роки тому
This video covers: - What we mean by specialised cells - How a sperm cell is adapted for its function - What differentiation is - Why differentiation is important Maths Playlist: ua-cam.com/play/PLidqqIGKox7XPh1QacLRiKto_UlnRIEVh.html GCSE Chemistry playlist: ua-cam.com/video/fN8kH9Vvqo0/v-deo.html GCSE Biology Playlist: ua-cam.com/video/ dIBinUdeU/v-deo.html GCSE Physics Playlist: ua-cam.com/v...
GCSE Biology - Active Transport #9
Переглядів 234 тис.2 роки тому
This lesson covers: - What active transport it - How it's different to diffusion - How root hair cells are adapted to absorb mineral ions Exam board specific info: AQA - Suitable for everyone IGCSE Edexcel - Suitable for everyone Edexcel - Suitable for everyone OCR 21st Century - Suitable for everyone OCR Gateway - Suitable for everyone CIE - Suitable for everyone Maths Playlist: ua-cam.com/pla...
GCSE Maths - Using Scales on Maps and Scale Diagrams
Переглядів 115 тис.2 роки тому
This video covers how to the scales on maps and scale diagrams to find distances. This video is suitable for maths courses around the world. KS3 - All on your course GCSE Foundation - All on your course GCSE Higher - All on your course A-level - All on your course Maths Playlist: ua-cam.com/play/PLidqqIGKox7XPh1QacLRiKto_UlnRIEVh.html GCSE Chemistry playlist: ua-cam.com/video/fN8kH9Vvqo0/v-deo....
GCSE Biology - What are Enzymes?
Переглядів 211 тис.2 роки тому
In this video, we cover: - What enzymes are - How enzymes work - The difference between the lock and key model and the induced fit model Exam board specific info: AQA - Suitable for everyone IGCSE Edexcel - Suitable for everyone Edexcel - Suitable for everyone OCR 21st Century - Suitable for everyone OCR Gateway - Suitable for everyone CIE - Suitable for everyone Maths Playlist: ua-cam.com/play...
GCSE Biology - What are Stem Cells? Difference Between Embryonic and Adult Stem Cells #11
Переглядів 230 тис.2 роки тому
In this video, we cover: - What stem cells are - What differentiation is - The difference between embryonic stem cells and adult stem cells Exam board specific info: AQA - Suitable for everyone IGCSE Edexcel - Suitable for everyone Edexcel - Suitable for everyone OCR 21st Century - Suitable for everyone OCR Gateway - Suitable for everyone CIE - Suitable for everyone Maths Playlist: ua-cam.com/p...
GCSE Maths - How to Solve Simultaneous Equations - Using the Elimination Technique
Переглядів 252 тис.2 роки тому
This video covers how to use the elimination technique to solve simultaneous equations. This video is suitable for maths courses around the world. KS3 - All on your course GCSE Foundation - All on your course GCSE Higher - All on your course A-level - All on your course Maths Playlist: ua-cam.com/play/PLidqqIGKox7XPh1QacLRiKto_UlnRIEVh.html GCSE Chemistry playlist: ua-cam.com/video/fN8kH9Vvqo0/...
GCSE Biology - Stem Cells in Medicine
Переглядів 75 тис.2 роки тому
In this video, we cover: - A quick recap of what stem cells are - How stem cells can be used to treat conditions like diabetes, paralysis and sickle cell anaemia - The risks involved with stem cell treatment - The ethical objections to using embryonic stem cells Exam board specific info: AQA - Suitable for everyone IGCSE Edexcel - Triple students only Edexcel - Suitable for everyone OCR 21st Ce...
GCSE Biology - Osmosis #8
Переглядів 239 тис.2 роки тому
In this video, we cover: - What osmosis is - How osmosis works - How to understand water concentration Exam board specific info: AQA - Suitable for everyone IGCSE Edexcel - Suitable for everyone Edexcel - Suitable for everyone OCR 21st Century - Suitable for everyone OCR Gateway - Suitable for everyone CIE - Suitable for everyone Maths Playlist: ua-cam.com/play/PLidqqIGKox7XPh1QacLRiKto_UlnRIEV...
GCSE Biology - What are Nutrients? Carbohydrates, Lipids, Proteins, Vitamins & Minerals #15
Переглядів 208 тис.2 роки тому
In this video, we cover: - What nutrients are and why we need each of them - Specifically we cover carbohydrates, lipids, proteins, vitamins, minerals, fibre and water Exam board specific info: AQA - Suitable for everyone IGCSE Edexcel - Suitable for everyone Edexcel - Suitable for everyone OCR 21st Century - Suitable for everyone OCR Gateway - Suitable for everyone CIE - Suitable for everyone ...
Cognito platform - GCSE Chemistry: Atoms
Переглядів 10 тис.2 роки тому
You can find the atoms lesson here: cognitoedu.org/coursesubtopic/c2-gcse-aqa-h-t_1.01 The Cognito platform just launched. It's totally free, and has been built from ground up to make learning and revision as easy as possible. Some of the main features include: - Automatic progress tracking of which lessons you've completed, and how well you did. - Quiz generation on any combination of subtopic...
Cognito platform - GCSE Physics: Transverse & Longitudinal Waves
Переглядів 11 тис.2 роки тому
Cognito platform - GCSE Physics: Transverse & Longitudinal Waves
GCSE Biology - How to convert between nm, um, mm, m and km #4
Переглядів 149 тис.2 роки тому
GCSE Biology - How to convert between nm, um, mm, m and km #4
IMPORTANT - The Cognito Platform Has Launched
Переглядів 327 тис.2 роки тому
IMPORTANT - The Cognito Platform Has Launched
GCSE Maths - Pythagoras' Theorem And How To Use It #120
Переглядів 206 тис.2 роки тому
GCSE Maths - Pythagoras' Theorem And How To Use It #120
GCSE Biology - What Is The Difference Between Light And Electron Microscopes? #6
Переглядів 139 тис.2 роки тому
GCSE Biology - What Is The Difference Between Light And Electron Microscopes? #6
GCSE Biology - What is Microscopy? #5
Переглядів 159 тис.2 роки тому
GCSE Biology - What is Microscopy? #5
GCSE Maths - All the Trigonometry Equations you Need To know! #119
Переглядів 233 тис.2 роки тому
GCSE Maths - All the Trigonometry Equations you Need To know! #119
GCSE Maths - What are Bearings? #118
Переглядів 503 тис.2 роки тому
GCSE Maths - What are Bearings? #118
GCSE Maths - Alternate, Corresponding and Allied Angles - Parallel Lines Angle Rules #117
Переглядів 360 тис.2 роки тому
GCSE Maths - Alternate, Corresponding and Allied Angles - Parallel Lines Angle Rules #117
GCSE Maths - 5 Angle Rules to Know #116
Переглядів 114 тис.2 роки тому
GCSE Maths - 5 Angle Rules to Know #116
GCSE Maths - 2D Projections Of 3D Objects #115
Переглядів 22 тис.2 роки тому
GCSE Maths - 2D Projections Of 3D Objects #115
GCSE Maths - How to Find the Volume of a Frustum #114
Переглядів 60 тис.2 роки тому
GCSE Maths - How to Find the Volume of a Frustum #114
GCSE Maths - How to find the Volumes of Cones and Pyramids #113
Переглядів 46 тис.2 роки тому
GCSE Maths - How to find the Volumes of Cones and Pyramids #113
GCSE Maths - Volumes of Cylinders and Prisms #112
Переглядів 78 тис.2 роки тому
GCSE Maths - Volumes of Cylinders and Prisms #112
GCSE Maths - Calculate Volume of Spheres and Hemispheres #111
Переглядів 55 тис.2 роки тому
GCSE Maths - Calculate Volume of Spheres and Hemispheres #111

КОМЕНТАРІ

  • @peterjones2761
    @peterjones2761 16 годин тому

    If you go down to the actual spring material, it is in fact a very thin long metal rod, wound into a coil form. If you observe closely what movement a spring is undertaking during compression or stretching you will observe that the this action is actually the bar twisting of equal amount throughout its entire length.

  • @freepalestine4301
    @freepalestine4301 16 годин тому

    cuz of u i got 9s in triple science ur a legend man keep up the good work

  • @user-pt9fk9xf9x
    @user-pt9fk9xf9x 16 годин тому

    so if the plant was at night that means that the stomata will be closed because there ain t no sunlight to absorb and be able to photosynthesise am i right

  • @DrMariamNaz
    @DrMariamNaz 17 годин тому

    Awesome. It was simplified and to the point.

  • @mask3d950
    @mask3d950 17 годин тому

    Really helpful! Almost at 1MIL!!!!!!!!

  • @RohitPraveen-ko1sv
    @RohitPraveen-ko1sv 18 годин тому

    Bro ur vids r the best!!! I watched one of the chemistry ones and literally the next lesson the teacher shows it saying, watch this video. Cognitive videos are entreating and very educational! (I agree with this)

  • @soursketch7074
    @soursketch7074 18 годин тому

    Just saved me thank you 😭

  • @ZoeVanwyl
    @ZoeVanwyl 19 годин тому

    pov: got a math test tmr and this saved my life ngl

  • @Marilizaki1
    @Marilizaki1 19 годин тому

    thank you so much you have videos on everything

  • @gloria615
    @gloria615 19 годин тому

    You just gain a subscriber sir Welcome and congratulations i really understood your lectures ❤❤❤ from Cameroon 🇨🇲🇨🇲

  • @MuhammadAbdullah-gr4ru
    @MuhammadAbdullah-gr4ru 20 годин тому

    How are you soo good! Thanks for the help, understood everything!

  • @Kalibejjsood
    @Kalibejjsood 20 годин тому

    Where did bro go 😭🙏

  • @Wallpaperarealm
    @Wallpaperarealm 21 годину тому

    thank you so much bro i have my physics IGCSE paper 4 in a week and was struggling with this, this video was really benefitial thank you so much, keep up the good work!!

  • @nasrukalid1445
    @nasrukalid1445 21 годину тому

    🥰🥰🥰🥰🥰😘😘😘😘😘🔥🔥

  • @nasrukalid1445
    @nasrukalid1445 21 годину тому

    😊😊

  • @anassyacouba2099
    @anassyacouba2099 23 години тому

    day b4 the exam 😭😭😭

  • @nasrukalid1445
    @nasrukalid1445 День тому

    Ohh l have no word🥰🥰🔥🔥

  • @MunhjinS-dh2qu
    @MunhjinS-dh2qu День тому

    Im so sigma

  • @FriedBros1
    @FriedBros1 День тому

    Im gonna be real with you. I went on holidays and I come back with a bunch of homework all about surds. My teacher was upset I didn't check the google classroom (i was on a cruise i had no internet). Then I stumble across you. I cannot stress this enough thank you so much.

  • @Supremebrawler07
    @Supremebrawler07 День тому

    Its meth-ane not mee-thane im subed btw also ur insanely underrated you should have 5-10mill subs

  • @mkmilky6965
    @mkmilky6965 День тому

    Igcse tmr 💀

  • @Supremebrawler07
    @Supremebrawler07 День тому

    Muslims were the first to work with elements and they invented soap and distillation processes whihc relates i guess

  • @Supremebrawler07
    @Supremebrawler07 День тому

    I home school

  • @Supremebrawler07
    @Supremebrawler07 День тому

    I love ❤cognito the animations maths physics science bruh is built to help us with our GCSE prep

  • @ashhadmehdi5925
    @ashhadmehdi5925 День тому

    his 6 hours playlist gave memore information than my 3 years of chemistry in school

  • @sphylynx2042
    @sphylynx2042 День тому

    tysm bruv life saver

  • @Supremebrawler07
    @Supremebrawler07 День тому

    Bro this is replacable to my teacher

  • @ahnafahmed4951
    @ahnafahmed4951 День тому

    Thank you Cognito, you have been a great help with Chemistry. I DONT KNOW how I would've made it if not for you there are no very good chemistry teacher's for IGCSE in the area, so I had to settle with the best of the low. But your videos came extremely handy. Thank You

  • @LotusLearningBenowa
    @LotusLearningBenowa День тому

    this is gonna sound weird but am i the only person who finds his voice really relaxing

  • @poopplayseverything8628
    @poopplayseverything8628 День тому

    My igcse in 3 hours lol

  • @multishep4340
    @multishep4340 День тому

    Hey he said the yellow peas were dominant, if thats the case why are all peas now days green pods?

  • @erie969
    @erie969 День тому

    science gcse tmr lol

  • @hypeiceT
    @hypeiceT День тому

    Ty gng I got a test next period I forgot abt

  • @slmabdva
    @slmabdva День тому

    watching 30 mins before math igcse paper 2! 😣

  • @farasatzaheer8698
    @farasatzaheer8698 День тому

    Thanks bro i watched this before my CIE p2 maths exam it helped me alot ❤

  • @user-qu1im3yv6z
    @user-qu1im3yv6z День тому

    That video was short it that really all we need to do wow 👍

  • @Diyadusara-kb4km
    @Diyadusara-kb4km День тому

    I am watching this right before my cies

  • @leeharuchiyo351
    @leeharuchiyo351 День тому

    i leave for my igcse bio p4 in 20 minutes and i’ve been watching your videos for at least 2 hours 😭 one of the best science channels out there

  • @succubuswitch
    @succubuswitch День тому

    As someone who is studying this on a science level to better understand solar flares. Your break down is brillent

  • @Mirza_999_
    @Mirza_999_ День тому

    You were speaking a bit quicker in this video!

  • @brawlstarsgamingv2312
    @brawlstarsgamingv2312 День тому

    Thank you so much for doing this! I struggled so much with this topic, but here something just clicked, and I understood it!

  • @altogl7258
    @altogl7258 День тому

    I'm a bilingual person. I have never tried improving my academic levels by my 2nd language (English) and all dependent on my home language. However , after reviewing a small lesson from the book by this video I always studied in English since then. I was encouraged by this video to step even further in this route . And I truly appreciate all the hard work this creator has sent in his creations🙏thanks g

  • @user-vj7kv6ov7g
    @user-vj7kv6ov7g День тому

    2024 to pass my finals!!!

  • @eligal643
    @eligal643 День тому

    BIO PAPER NEXT WEEK GUYS <33

  • @KyoleDJames
    @KyoleDJames День тому

    I have my exam tomorrow and rn i am binge watching all your videos....

  • @user-ld5kv7ij8w
    @user-ld5kv7ij8w День тому

    Blud I've got 3 days for my IGCSE exams and I was thinking I am doomed but I'm glad I found this channel... now IGCSE feel like a piece of cake... tysm!

  • @Circlelikesmemes
    @Circlelikesmemes День тому

    This is the best topic for me :DD

  • @ironmind_hq
    @ironmind_hq День тому

    pretty sure this is AI generated

  • @dinathmethmikafernando6150
    @dinathmethmikafernando6150 День тому

    Learning more than the textbooks itself.

  • @awsomwells9510
    @awsomwells9510 День тому

    Cognition vs Freesciencelessons