A Level Biology Revision "B Lymphocytes and Humoral Immunity"

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  • Опубліковано 20 кві 2023
  • You can find all my A Level Biology videos fully indexed at www.freesciencelessons.co.uk/...
    In this video, we look at B lymphocytes and humoral immunity. We explore the roles of T helper cells and interleukins and what is meant by clonal selection and clonal expansion.

КОМЕНТАРІ • 70

  • @user-dg4rw5wh7l
    @user-dg4rw5wh7l Рік тому +72

    Just wanted to say how grateful I am for these videos, they got me from a grade 5 in chemistry to a grade 9 with only a few days of revision, and made me realise how much i love science and learning. because of that I decided to do a levels and now im going to be applying to med school. without these videos i highly doubt i would have grades high enough to do this. thankyou so much!

  • @tuispeatbog
    @tuispeatbog 7 місяців тому +18

    Omg I almost shed a tear, I am so glad you have A level bio videos now!!!!! Even though I discovered them the day before my first A level bio exam :') It is still so so nice to be able to use your resources again. Thank you. Your videos are the only thing my pandemic brain could process. I am eternally grateful

    • @Freesciencelessons
      @Freesciencelessons  7 місяців тому +6

      Thanks for the message. I'm glad that you're finding my videos useful. I'm just about to upload the Year 13 Photosynthesis videos.

  • @burghyr
    @burghyr Рік тому +10

    You are not just a guy making science videos, you are a hero for many students. Thank you for making videos about Chemistry and Biology A Level. I learn best from videos, so my grades achieved for this year are all because of you. Thanks again. I will buy a freesciencevideos hoodie and wear it on results day 😂

  • @kirovfx7939
    @kirovfx7939 Рік тому +6

    You have helped us all so much, so many people you have educated and saved!! You are a littéral historical figure in schools everywhereeeee!! We love you ❤❤

  • @alfiehewin4449
    @alfiehewin4449 Рік тому +5

    @Freesciencelessons when are we going to get behind the scenes? Would love to see what goes into making these videos!!! Thanks!

  • @Ali-ye4nv
    @Ali-ye4nv 10 місяців тому +2

    I was having trouble understanding my class notes on the B-cells and Humoral it was kinda bit confusing and this video provided awesome explanation that It has solidified my understanding ❤❤

  • @Dean0G
    @Dean0G Рік тому +2

    the madlad is back again

  • @phatgus1994
    @phatgus1994 Рік тому +5

    Your voice is so calming and it is exactly what I need when studying so thank you sir!

    • @Freesciencelessons
      @Freesciencelessons  Рік тому +12

      No problem. I'm glad that you find my voice calming. Good luck with your studies and your exams.

  • @nicobattisti365
    @nicobattisti365 8 днів тому

    great videos, thanks so much for the help.

  • @MiniMannMacho
    @MiniMannMacho Рік тому +1

    Hi, when will you be doing section 4? Genetic information, variation and relationships between organism

  • @RandomCarGuy_
    @RandomCarGuy_ Рік тому

    This guy is the goat no cap

  • @NavAli-xs2qx
    @NavAli-xs2qx Рік тому +1

    Hi sir I just want to ask something in terms of your revision workbooks. I already have CGP revision books and I’m thinking about buying yours. Is there any chance you can let me know what your books contain in terms of biology chemistry and physics. Also how are they different to CGP books?

  • @Countdown420
    @Countdown420 Рік тому

    Sir you are best

  • @danielminett9012
    @danielminett9012 Рік тому +1

    Hi just wondering if you think A Level Bio and Chem videos will be complete in time for exams in 2024? Many thanks

  • @misssudan9689
    @misssudan9689 2 місяці тому

    ah rell grateful‼️

  • @zoebutdontforgetthedots
    @zoebutdontforgetthedots Місяць тому

    When would the clonal selection and clonal expansion happen in terms of the graph at the end? And do clonal selection and expansion happen in both the primary and secondary response? Thank you so much for everything you do, you're a total legend :))

  • @shaanrana240
    @shaanrana240 Місяць тому

    hi sir, is the first section on T helper cells how they are made and reproduced as i do not see how the first part is included in humoral immunity

  • @Aisha-gd6dq
    @Aisha-gd6dq Рік тому +1

    I’m still In GCSEs but I want your hard work towards teaching science up to A levels. Thank you so much for making my concepts clear.

  • @zane_681
    @zane_681 Рік тому +4

    Hello Freesciencelessons, my biology paper 1 is tomorrow and I’m really hoping to get a 9 in it. Your videos have been extremely helpful in my revision, you are a legend. ❤

    • @muhummedmir
      @muhummedmir 11 місяців тому

      Zane is the best ninja 💯

  • @chrisli6106
    @chrisli6106 Рік тому +2

    Dear sir,
    I am revising the immune system for my exam recently, would you mind releasing the rest videos so that I can fully understand this topic. Thank you so much.
    Best regards
    Chris

  • @idk-ud6kl
    @idk-ud6kl Рік тому

    hi sir whats the diff between aqa and edexcel, do they do the same topics?

  • @Yyhhhgfgbbhhh
    @Yyhhhgfgbbhhh Рік тому +18

    Does the legend himself reply?

  • @berenaycan1956
    @berenaycan1956 Рік тому +1

    SIR WE NEED VIDEOS FOR ALL THE TOPICS PLEASE. MY ALEVELS ARE AT STAKE. OCR A BIOLOGY AND CHEMISTRY TY.

  • @dawnofpigs9729
    @dawnofpigs9729 Рік тому

    I'm getting goosebumps every time

  • @istayanonymous640
    @istayanonymous640 6 місяців тому

    You friggin legend

  • @yasminh
    @yasminh Рік тому

    YESS THANK YOU SO MUCH IM IN YEAR 12 MOCKS RN AND I NEED THIS THE OTHER UA-camRS DONT DO IT AS WELL AS YOU SIR

    • @Freesciencelessons
      @Freesciencelessons  Рік тому +5

      Thank you for the comment, I appreciate it. Best wishes for your exams.

  • @diegobertora3470
    @diegobertora3470 Рік тому +5

    Hi sir. In our edexcel science GCSEs if they ask to find the mean of data should we always look for an anomaly to exclude?

    • @Freesciencelessons
      @Freesciencelessons  Рік тому +8

      If there is an obvious anomaly, then you should exclude it. But bear in mind that data varies so there might not be an anomaly, just variation.

    • @ravjayakodi2746
      @ravjayakodi2746 11 місяців тому

      @Alkxxxz - understand content at any means
      - learn the content by using ur preferred revision methods ie flashcards, mind maps
      - apply the knowlege by doing past paper questions as much as possible

  • @user-hu4ut9jm8e
    @user-hu4ut9jm8e Рік тому

    hi, could you please upload videos on A2 biology for the International Edexcel Syllabus

  • @jaicarter3031
    @jaicarter3031 Рік тому

    hello sir, please can u tell me if iron is a metal please im quite young so i dont know :))

  • @jaicarter3031
    @jaicarter3031 Рік тому

    hi sir, these videos are very help[ful and if u reply it would make my day :)

  • @ivek_Knight
    @ivek_Knight Рік тому +3

    Your channel randomly Suggested and your teaching Is so good
    Through your teaching and visuals i can learn easily.
    I AM PREPARING FOR NEET EXAMS.
    IT WILL HELP ME IN SMALL DOUBTS.
    But i still wondered
    Sir your channel is Big with so many subs
    But Why students aren't interested to learn.
    Like in india there were so many educators for eg: PHYSICS WALLAH, Unacademy.
    They teach free and don't have better visuals but There student aaudience is So much.

  • @El-kj9jj
    @El-kj9jj Рік тому +3

    Hi, are you going to be making a level physics videos? Your videos are so helpful!

    • @jefk2667
      @jefk2667 Рік тому

      he doesn't do physics a level bc of qualification levels, he does biology and chemistry though :))

    • @FarmYardGaming
      @FarmYardGaming Рік тому +1

      He said he wouldn't cover A Level Phyics when he first began these

  • @uzser-sr7tf
    @uzser-sr7tf Рік тому

    hi sir, for my biology paper 2 what should i aim for if i wish to do medicine ?

    • @humzino6630
      @humzino6630 Рік тому +1

      well you need to get at least 3 As to get into medicine so probably at least an A

  • @sabaarif2995
    @sabaarif2995 Рік тому +1

    Hello sir, when will you be uploading the remaining video's to this chapter ? I have my exam in 4 days Your video's help me out a lot .

    • @Freesciencelessons
      @Freesciencelessons  Рік тому +7

      I have a few more videos to make but I have tonsillitis at the moment so my voice is pretty croaky I'm afraid. I'm going to have to wait until it's better.

    • @sophia4k896
      @sophia4k896 Рік тому +2

      @@Freesciencelessons get well soon! :)

  • @M0Hamza9
    @M0Hamza9 Рік тому

    Hi sir wanted to ask what a levels you did to do biochemistry as I am very interested in doing so, please reply sir

    • @Freesciencelessons
      @Freesciencelessons  Рік тому +2

      I did Biology, Chemistry and Physics A levels.

    • @M0Hamza9
      @M0Hamza9 Рік тому

      @@Freesciencelessons thanks so much

  • @sedlon2722
    @sedlon2722 Рік тому

    been watching so may of his videos starting to develop a crush on him

  • @harithrushamba1638
    @harithrushamba1638 Рік тому

    make a level physics vids

  • @N01Meow
    @N01Meow Рік тому +1

    Hello sir, my friend is a huge fan of yours but struggling for motivation right now with revision and feels a bit lost. Could you reply with a comment saying best of luck ghufran you will smash it, i think it would really help. Thanks in advance :)

    • @Freesciencelessons
      @Freesciencelessons  Рік тому +21

      Ghufran I wish you the best for your exams. Many students feel lost as their exams approach and struggle to find motivation. The best advice I can give you is this: pick the one topic in GCSE Science that you hate the most and then watch the first three videos in the playlist for that topic. Don't try to learn it, just watch the videos. You will realise that the topic is not as bad as you think and you can do it. And you might feel like watching a few more videos and before you know it you'll have done the whole topic. And then just keep going. Just watching the videos, even if you do nothing else, will help you to learn. I really hope that you take my advice Ghufran and get the grades that you want. Best of luck.

    • @N01Meow
      @N01Meow Рік тому +1

      @@Freesciencelessons thank you very much sir!

    • @N01Meow
      @N01Meow Рік тому

      Will make sure to give it my best.

  • @foxzy1469
    @foxzy1469 Рік тому +1

    Hi. Does your video for A level biology over the ocr a specification?

  • @mrswifteurope1442
    @mrswifteurope1442 Рік тому

    hi sir, is this topic covered in AQA biology year 10 mocks?

    • @llcooj9428
      @llcooj9428 Рік тому +3

      no it says in the title its clearly an a level video

  • @jagtdm9372
    @jagtdm9372 Рік тому

    I only see you In School