AS Biology - Cell-mediated immunity (OCR A Chapter 12.6)

[@yoyo9winner]

how do u have so few viewers, ur really gd. I wish i found u ages ago!

[@BioRach]

Haha thank you!! :D I only started for a few months. Please share it with your fellow Biologists! :)

[@Diorfitzz]

su

[@adel8616]

@@Diorfitzz y u hating

[@sophietenbosch5498]

I have literally seen all your videos they are so helpful you have no idea!!! The only comment i have is that sometimes the music is quite loud and I find it difficult to concentrate but its not too bad and I don't know what id do without you!

[@BioRach]

Thank you for watching the videos! Your encouragement means a lot :D yes I'm aware that the music in some videos are way too loud (especially the ones that I've made in the beginning!). I've been putting the music to as low as possible... Let me know if it's still too loud in the future! Thanks again for watching and your feedback!

[@MZ-ji4bl]

thank you for these videos! they are so easy to follow, short and to the point and follow the ocr spec exactly! wish I had discovered you earlier, these videos are amazing. please continue to create more! my paper 2 exam is tomorrow so I am rewatching them all again. I hope you are having a great day

[@BioRach]

Thank you for your kind words! :D I'm glad that they are helpful, and it's great to hear that they're helping people exactly the way I intend them to (aka. easily accessible and concise). All the best for paper 2 tomorrow and thanks for watching!

[@MZ-ji4bl]

BioRach thank you! :)

[@MiffySkittles]

Hi Biorach! Idk if you'll see this but my last A-level Biology exam is tomorrow & I'd just like to say a BIG BIG BIG BIG BIGGG thank you for getting me through AS & A2. Biology has been super hard but you have made it that little bit easier Keep on making great videos!!!!!

[@BioRach]

Well done for persevering through these two years!! 🥳🥳 I hope you've enjoyed Biology despite it being one of the hardest AL subjects 😉 All the best tomorrow, final push, ENJOY THE PAPER!! 🤩 let me know how it goes afterwards!!

[@MiffySkittles]

@BioRach hi biorach, just an update! The paper had loads of evaluation which I didn’t expect after having 2 other papers full of evaluation😂but it wasn’t too bad. Thank you so much for all the videos! I’m so excited to just leave A-levels behind me & start a new chapter💜

[@justjayy7481]

Thank you for making these videos, they’re so helpful!!👌🏾

[@BioRach]

Glad you find them helpful! Thanks for watching :D

[@nisaahussein5822]

I literally understand it so much now! U are better than the teachers❤❤❤u deserve more viewers

[@BioRach]

hahaha this is an interesting but tricky topic, but I'm glad the video helped you! :D Thanks for watching!

[@hajirasyed7268]

You literally save my life. Thanks so much for these amazing videos

[@KamisatoElias]

I've seen many conflicting descriptions online about the 2 types of response. Do the T-Helper cells proliferate into the other types of T-cells themselves, or do they stimulate other T-cells to divide?? It all seems a bit vague and the specification doesn't say how much detail you need nor the actual facts.

[@edgardeugene4412]

Very great and straightforward video

[@momobowen5394]

A big thank you!!!! This was really helpful!!❤️

[@theotsui1334]

much better than private scchool teachers!!!!!!!!!!!!!!!!!!!!

[@BioRach]

haha thanks for the compliment! I'm just alright :D glad you find the videos helpful :) Thanks for watching!

[@affren3148]

Thank you

[@WarMoose20]

Really concise video thank you!

[@amymendes8197]

Great and concise!

[@samlindsay3748]

The skibiddi Goat of immune systems

[@HiHi-wp1vu]

Clonal selection occur in cell mediated immunity? Or is it just humoral response?

[@laraibakram1842]

when the interleukins stimulate the t cells and b cells, is that clonal selection or clonal expansion? thanks! ur videos are sooo helpful.

[@BioRach]

Mainly clonal expansion. Clonal selection occurs through the phagocytosis by B cells first, before being stimulated by the interluekins for expansion. Thanks for watching!

[@GabeyGalindo143]

Amazing

[@rali1243]

I love you content ! It’s so helpful Thankyou :))

[@rali1243]

You’re*

[@ellamead3598]

is this not the old specification, I have never learnt about MHC

[@BioRach]

This is the new specification.

[@user76296]

hold that ratio

[@leahhjamessx9833]

i cant find cell mediated immunity and humoral immunity in the spec, only primary and secondary immune responses. what would they come under?

[@roxers8700]

they come under the specific immune response

[@leahhjamessx9833]

@@roxers8700 is this for OCR?

[@BioRach]

This is for OCR, yes.

[@elliottsaint]

Wish you would have talked about t killed a bit more x

[@BioRach]

T killer cells are quite cool, but I'm trying to focus on what is on the spec to make it concise! :) I'm sure you can find more on T cells in further reading.

[@triplemgaming5103]

this is really helpful but could've done without the background music as it was a bit distracting in my opinion.

[@BioRach]

Yes thanks for the feedback! And I absolutely agree - I've stopped putting background music in my later videos, hope you'll find them better :) thanks for watching!

[@triplemgaming5103]

@@BioRach thanks a lot!☺️

[@Geri_kariba]

That's a2 biology though. unit 4

[@washingmachine4993]

No, this is in as. Unit 4 is as, unit 5 and 6 is a2.

[@ratatouille8542]

2:23