GCSE Biology - Immune System (Defences Against Pathogens) #38

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  • Опубліковано 4 лип 2024
  • In this video we take a look at our bodies defences against pathogens. Including the physical and chemicals barriers, and our immune system.

КОМЕНТАРІ • 183

  • @keerthannan4967
    @keerthannan4967 4 роки тому +512

    "If you haven't noticed the body is covered in skin"
    -Cognito 2018

  • @StuffFilmedHere
    @StuffFilmedHere Рік тому +102

    Paper 1 biology tomorrow. Almost all of my revision is these videos. Wish me luck

    • @strxwberry_xx
      @strxwberry_xx Рік тому +7

      howd it go?

    • @lillylightning4744
      @lillylightning4744 9 місяців тому

      How did it go

    • @rmimpact
      @rmimpact 7 місяців тому

      @@strxwberry_xx I have a bio exam in two days. This video is one of the many things I am doing to prepare if you want I can let you know if my technique works.

    • @Lily-ow5wm
      @Lily-ow5wm 6 місяців тому

      @@rmimpactok

    • @derrickababio430
      @derrickababio430 5 місяців тому

      @@rmimpacthow’d it go?

  • @Azorek-zb2lc
    @Azorek-zb2lc 4 роки тому +204

    this is great for revision ngl

    • @Cognitoedu
      @Cognitoedu  4 роки тому +32

      Cheers Azorek really appreciate the comment and kind words - hope the revision goes well! 🥳

    • @ethan.jlh2023
      @ethan.jlh2023 2 роки тому +3

      frl

    • @Khan-kx9jw
      @Khan-kx9jw 2 роки тому +5

      Or entire preparation…..

    • @hollowoat
      @hollowoat Рік тому

      nah

  • @Legend_616
    @Legend_616 7 місяців тому +25

    these videos are DEFINITELY worth making. They are amazing and help me so much in my exams, because of you I've got 9s in all of my sciences.

  • @Cognitoedu
    @Cognitoedu  2 роки тому +18

    If you’d like to practise the material covered in this video, check out our platform at www.cognitoedu.org - it's totally free, and has been built specifically to make learning and revision 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 at a glance 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

  • @Matt-xh7wq
    @Matt-xh7wq 3 роки тому +192

    Post-Video Quiz:
    1. Name three ways that your skin protects you from pathogens
    2. Name two ways your nose protects you from pathogens
    3. What does mucus do?
    4. How does your stomach kill pathogens?
    5. Name 3 functions of white blood cells
    6. What is an antigen?

    • @dvrina
      @dvrina 3 роки тому +11

      AHHH THANK YOU SM AGAIN

    • @begumsalma5108
      @begumsalma5108 Рік тому +3

      Damn Matt you ong the best

    • @finlaycoburn2120
      @finlaycoburn2120 Рік тому

      they only mentioned two ways that your skin protect you. what an absolutely stupid retarded useless awful diabolical shit question

    • @samfarr6239
      @samfarr6239 Рік тому +2

      Matt you're a legend

    • @stephaniefarid2219
      @stephaniefarid2219 Рік тому

      1. the skin acts as a physical barrier, preventing pathogens from entering
      the skin also secrets an oil called sebum, which kills all pathogens
      the skin also clots at the site of a wound, because of platelets, to prevent pathogens from entering.
      2. the nose has mucus which traps pathogens
      the nose has hairs which also trap the pathogens and prevent them from entering the body.
      3. mucus traps pathogens
      4. the stomach secrets HCl which is very acidic and can kill pathogens.
      5. white blood cells do phagocytosis, which is the process of attaching to a foreign pathogen and engulfing
      white blood cells (lymphocytes) also produces antibodies which bind to the antigens, preventing them from producing any more antigens
      t-cells memorise the shape of the antigen in the pathogen, so that it acts faster the next time the pathogen comes back, preventing them from spreading
      6. an antigen is a specific protein that is found on the surface of pathogens (? i think lol)
      thanks for this !! :D

  • @kimcramp995
    @kimcramp995 2 роки тому +25

    You explain things very well, better than other videos I've watched, really helped me understand a lot of the concepts for my GCSE exams

  • @darksteiner631
    @darksteiner631 4 роки тому +30

    He's actually really good.

  • @noahsaki.5927
    @noahsaki.5927 4 роки тому +66

    This is so useful, i also like the little drawings :D

  • @fionawilliams5477
    @fionawilliams5477 Рік тому +6

    This is so brilliant for independent Biology studies

  • @xmashine2.0
    @xmashine2.0 Місяць тому +3

    Got my bio test tomorrow and imma watch like 40 of ur vids tonight 😅

  • @bobthegamer9294
    @bobthegamer9294 7 місяців тому +3

    These videos you're making really are blessings for all of us

  • @normalp123
    @normalp123 Рік тому +5

    Just saved me for a biology exam I didn't even know I had today thanks :)

  • @blizzard7520
    @blizzard7520 2 роки тому

    I got my gcse in a bit and I whatched your vids for 2 years now , thank you

  • @783c
    @783c 2 роки тому +5

    i really didnt understand the textbook because it looked so messy and many words that i dont understand, so this helped me a lot , thanks !

    • @Cognitoedu
      @Cognitoedu  2 роки тому +2

      You're very welcome caecynn!

  • @tandems350znismo8
    @tandems350znismo8 Рік тому +2

    this man has fully saved my grades

  • @delightmoses9775
    @delightmoses9775 Рік тому +1

    Tbh u r the best so far...all ur explanations r well details linking each other.🎉🎉

  • @ajproductions6515
    @ajproductions6515 3 роки тому +5

    YOU DONT KNOW HOW HELPFUL THAT WAS THANK YOU SO MUCH!!!

  • @lilyyfaye
    @lilyyfaye 3 роки тому +14

    i have a biology exam tomorrow, this has really helped!

    • @xfreja
      @xfreja 2 роки тому +4

      how did it go? oh and you’re really pretty btw

    • @lilyyfaye
      @lilyyfaye 2 роки тому +6

      @@xfreja well, i’m in college now doing psychology😅 so i passed! & thank you

    • @laracroft9823
      @laracroft9823 Рік тому +3

      You are really pretty :0

    • @lilyyfaye
      @lilyyfaye Рік тому

      @@laracroft9823 thank you!🩷

  • @h0pidol825
    @h0pidol825 Місяць тому +3

    2024 gang still using these goated videos

  • @christswarrior9780
    @christswarrior9780 2 роки тому +2

    Cognito is like the best UA-camr to use for studying 📖

  • @rosemunn7494
    @rosemunn7494 4 роки тому +4

    does this include content for separate science also?

  • @RALJ-dm4cp
    @RALJ-dm4cp Рік тому +3

    Thank You so much for making this video it really helped me a lot

  • @jasminebownass9533
    @jasminebownass9533 2 роки тому +4

    when your biology exam is tomorrow 🙋

  • @laavanya5206
    @laavanya5206 28 днів тому +2

    You’ve missed a small part:
    - After the primary immune response (the first time the disease enters the body and the lymphocytes produce antibodies to destroy it) the lymphocytes that produced the antibodies for the specific disease will develop into a memory cell so that when the pathogen enters for the second time (secondary immune response) the lymphocytes will produce antibodies much quicker and destroys the pathogens before they can multiply.

  • @TheNightFury709
    @TheNightFury709 Рік тому +7

    Anyone here a day before bio exam

  • @Fidencious
    @Fidencious 2 роки тому +1

    This is smart, and straight to the point

  • @iraanggreyani3300
    @iraanggreyani3300 Рік тому +1

    Thank you so much for the vid. This vid was used In my school

  • @visionar7303
    @visionar7303 4 роки тому +11

    We have an army inside out body

  • @zainabladha5804
    @zainabladha5804 3 роки тому +8

    LOVE THIS! HELPED ME SO MUCH FOR REVISION :)

  • @user-nr2bc6py9x
    @user-nr2bc6py9x 4 місяці тому

    extremely worth making.... Thank you for everything....

  • @powfoot4946
    @powfoot4946 2 роки тому +2

    cant believe they teach phagocytosis at GCSE level now, i didnt have to learn all this til a level!

  • @shockkinggamer614
    @shockkinggamer614 6 місяців тому +3

    best videos in the world for study

  • @katherinesouthin418
    @katherinesouthin418 4 роки тому

    really lovely video and pictures. great for my revision!!!!

  • @MV29321
    @MV29321 Рік тому +4

    bio gcse tomorrow wish me luckk

    • @clemmiehurrell9876
      @clemmiehurrell9876 Рік тому +2

      same gd luck tho

    • @MV29321
      @MV29321 Рік тому +1

      @@clemmiehurrell9876thankyouu same for u hopefully it’s a good paper🥲

  • @amrutamahajan9627
    @amrutamahajan9627 3 роки тому

    You are a hero. Thank you so much!

  • @BOB__M
    @BOB__M Рік тому +2

    This is a bit late since the video was uploaded 3y ago but your videos are the best to watch the night before the exam :).

  • @SwiftNinja69swithwaifus
    @SwiftNinja69swithwaifus 2 роки тому +2

    THIS WAS REALLY HELPFUL TYSM

  • @shivpattni2129
    @shivpattni2129 3 роки тому +4

    These videos are incredible please don't stop making them!!

  • @manthanjain2813
    @manthanjain2813 3 роки тому +2

    this is a very great way for revision .we thank you for your efforts

  • @mafajabzz9208
    @mafajabzz9208 3 роки тому +3

    This is lot better than al my scoolings

  • @chikcen7
    @chikcen7 2 роки тому +3

    thanks for all the videos man ive been getting 8s and 9s with the help of these thanks for all the effort

  • @mahdidiab1325
    @mahdidiab1325 Рік тому +2

    Sigma vs giga war bout to be lit

  • @zachwatson958
    @zachwatson958 Місяць тому +2

    Watching this on the morning of my biology paper 1. Future me did I do well?

  • @Jack-ew5jt
    @Jack-ew5jt 2 місяці тому

    4 years later and still useful

  • @pluto7003
    @pluto7003 Рік тому +1

    Revising for my exam tmr💪

  • @bigbag_games417
    @bigbag_games417 3 роки тому +1

    Not gonna lie i have a test soon and I canr be asked to revise so I just watched this and it helps

  • @Saka_Supremacy
    @Saka_Supremacy 3 роки тому

    man thanks i have a test on this and i am studying twm.

  • @Riptide_28
    @Riptide_28 Місяць тому +2

    Early morning revision for the test today....

  • @tompolly3024
    @tompolly3024 4 роки тому

    Great for revision!!!

  • @wonderful5861
    @wonderful5861 Місяць тому

    Remember specific and non-specific defense system classification

  • @St-jh8pk
    @St-jh8pk 3 роки тому +1

    This helped me lots, thank you cognito😉

    • @Cognitoedu
      @Cognitoedu  3 роки тому

      Glad we could help S t! 😊

  • @rachelganwq1472
    @rachelganwq1472 3 роки тому +1

    Great job. I'm impressed.

  • @noramalinanazri995
    @noramalinanazri995 2 роки тому +4

    Always love cognito,keep on the very good work 👍👍

    • @Cognitoedu
      @Cognitoedu  2 роки тому

      Thank yooou, will do! 😊

  • @labradorite7051
    @labradorite7051 3 роки тому

    That's really helpful!!! Thank you so much :)

  • @adrianocroci6599
    @adrianocroci6599 Рік тому +1

    Thank you! I have my IGCSE tomorrow and my only problem was this topic

  • @hmhhmh746
    @hmhhmh746 2 роки тому +9

    POV: Your bio paper 1 is tomorrow

    • @Sami-df7dj
      @Sami-df7dj 2 роки тому

      Yep so stop looking at the comment section and do some work stupid student.

    • @wendo____O
      @wendo____O Рік тому

      It's today lmao

  • @abdikaadirnasir
    @abdikaadirnasir 7 місяців тому +4

    This shows us how god protects us everyday and we dont notice😢😢😢

  • @owains83
    @owains83 4 роки тому +3

    Loving the splinter cell nod

  • @slimemonster3797
    @slimemonster3797 3 роки тому +3

    For real, i wrote 5 pages of dis on my notebook while i couldve learnt everything i needed to from a video omg dis literally stated everything! EVERYTHING! Oml stupid and even if there wasnt vaccine or passive immunity like who cares dis is d main subject!

  • @davideadie2872
    @davideadie2872 7 місяців тому +2

    Great video ;)

  • @ashtonkulczycki1545
    @ashtonkulczycki1545 Рік тому

    im so thankful!!!!!!!

  • @ollie3784
    @ollie3784 Місяць тому

    COGNITO YOU SAVE MY GCSE ;-;

  • @zacharysleep7318
    @zacharysleep7318 2 роки тому

    glad i watched this 4 times

  • @AsmaCampbell
    @AsmaCampbell Місяць тому +5

    Paper one tomorrow

  • @chloeannegachalife
    @chloeannegachalife Місяць тому +2

    Paper 1 biology tomorrow one of my weaker topics

  • @baldeagle1235
    @baldeagle1235 3 роки тому

    love your videos

  • @user-lq2ig1yc4z
    @user-lq2ig1yc4z 7 місяців тому +1

    I have my bio mock exam paper one tmrw

  • @bekidbekind
    @bekidbekind Рік тому

    Your very welcome

  • @farhanzaki959
    @farhanzaki959 2 роки тому

    Can someone give me a structured paragraph for 6 marker describe how the human body prevents pathogens from entering defends itself against pathogens inside the body

  • @leentube9567
    @leentube9567 7 місяців тому +1

    thank u so much

  • @sskitty2532
    @sskitty2532 3 роки тому +6

    Is this GCSE compliant or A-level?
    Does anyone know?

  • @Wojbest_YT
    @Wojbest_YT Рік тому

    0:26 no i haven't thanks for telling me

  • @qweelsy6297
    @qweelsy6297 Місяць тому +3

    Bio paper 1 triple in 14 hours

  • @JadenRogerWright-dg5xb
    @JadenRogerWright-dg5xb 15 днів тому

    😍

  • @samisamis1521
    @samisamis1521 2 роки тому +1

    The dislikes are pathogens

  • @dafnesanchezcuesta6865
    @dafnesanchezcuesta6865 2 місяці тому +2

    Paper 4 coordinated science exam tomorrow, wish me luck😫

    • @jihunjeong2186
      @jihunjeong2186 2 місяці тому

      today is p4 biology

    • @daisy-qg7sy
      @daisy-qg7sy 2 місяці тому

      Good luck guys, I hope the exam is nice

  • @nomurakensaku2236
    @nomurakensaku2236 3 роки тому

    god bless you child

  • @amishahmed1465
    @amishahmed1465 4 роки тому +3

    thanks teacher

  • @Benvena07subscribe
    @Benvena07subscribe 4 роки тому +2

    Thanks

  • @tbtoffee
    @tbtoffee 3 роки тому +1

    1:35 what particles??

  • @not...not...no.643
    @not...not...no.643 2 роки тому +1

    0:25 if u havent noticed 💀💀

  • @ayajoudi5426
    @ayajoudi5426 3 роки тому

    what is the app's name

  • @rubinprince100
    @rubinprince100 Рік тому

    I have a big problem with the pathogens having butt holes

  • @thechickenconnoisseur1669
    @thechickenconnoisseur1669 3 роки тому

    last minute 🥰

  • @jasopyuh
    @jasopyuh Рік тому +1

    W

  • @gamer_ksa9517
    @gamer_ksa9517 2 роки тому

    Commented

  • @slivvr8300
    @slivvr8300 2 роки тому +1

    Among us in real life (sus) (sus)

  • @Gabriel2cans
    @Gabriel2cans 2 місяці тому

    :))

  • @ridaahmed2583
    @ridaahmed2583 3 роки тому

    "trakeeya"

  • @slivvr8300
    @slivvr8300 2 роки тому

    🍙Asian white blood cell

  • @iconical397
    @iconical397 Місяць тому

    paper one tmrw 🙏🙏🙏🙏🙏🙏🙏🙏

    • @musa0712
      @musa0712 Місяць тому

      Lower the grade boundaries 🙏🙏

    • @iconical397
      @iconical397 Місяць тому

      @@musa0712 not possible lil bro 🙏🙏

  • @user-bx4hm7kq2j
    @user-bx4hm7kq2j 3 роки тому

    umuman bomapti

  • @jzinfo3173
    @jzinfo3173 3 роки тому

    whos here from Aude!??

  • @dabba1985
    @dabba1985 3 роки тому

    Minster school was here

  • @ehsanzaman7054
    @ehsanzaman7054 3 роки тому +1

    lol imagine getting views from school links

  • @faiyazfuad4595
    @faiyazfuad4595 Місяць тому

    10 hours

  • @slivvr8300
    @slivvr8300 2 роки тому

    lmao ratio

  • @lorenzos4741
    @lorenzos4741 3 роки тому

    hi

  • @godemperordioramos6654
    @godemperordioramos6654 4 роки тому +1

    Zzzz...