GCSE Biology Revision "The Immune System"

[@ibibam_9429]

Not the hero we deserve, but the hero we need.

[@jeremygliddon3597]

This guy should be nominated for a knighthood - he has helped many hundreds of thousands of students. Top work

[@bullymaguire2995]

🤣🤣🤣🤣🤣🤣🤣🤣🤣

[@suzysheep149]

I know youre probably joking but i couldnt agree more

[@huzaifasaeed9347]

662k to be exact

[@MilesMorales288]

@@huzaifasaeed9347 669K now

[@jumpkicking]

@@huzaifasaeed9347 That's teachers who have subscribed, each with a class of thirty. That would just be 22,290,000. Each teacher teaches 10 classes, to a total of 220,290,000 students every 5 years. In (312 divided by 5 = ) 62 years he will of taught the equivalent of the Earths entire population! (this is a satire joke btw)

[@Boredbihhh]

you , mr bruff and mr salles are legends

[@kyleshahil6396]

and corbettmaths, all legends

[@lawrencia5099]

And maths genie

[@rxhaan_786]

mr everything english

[@flawless4770]

I cannot thank you enough, in my last set of mocks, i got a 566. I wasn't happy and i really stepped up my game revision-wise and your videos have helped me a huge amount. In this set of mocks i got three 9's! Youre a life saver

[@Freesciencelessons]

Those are fantastic grades. Well done. I'm happy to have been able to help.

[@OmegaEA-]

how did you do in your gcse's?

[@AboodWarda]

Any 2024 students ?

[@ernslvr]

hey queen

[@ruwayda3565]

Hiii

[@OpheWophy]

HERE! (Live laugh love Shaun Donelley)

[@s.6986]

THIS IS THE BEST CHANNEL ON KZbin IF IF WE DIDNT HAVE YOU I WOULD BE STRESSING MYSELF OUT FLICKING THROUGH BORING REVISION GUIDES! THANK YOU SO MUCH! +Videos for me are WAY more productive! +my teacher always plays your videos in class and my friend always shouts "that's my best friend😂" You give us so much confidence, thank you!

[@badmoon309]

yess same...and omg hi fellow army

[@mansha_o]

@@badmoon309 army?

[@YTGamerboyPG3D]

ikr this dude should be getting monthly salary just by making videos cause how good he explains and he gives free lessons

[@skyeatkinson9598]

these videos are saving my GCSEs

[@_.cxndii9760]

sure are!

[@o_dadon7955]

GCSE biology today! good luck!!!

[@aciddragon101]

Skye Atkinson same

[@misan2002]

true but i'm still failing

[@al-farsi6018]

@@misan2002 hello

[@jacobluck0.o233]

Good luck if you’re taking biology tomorrow! :P

[@sarpibrahimhakkioglu4718]

thx b next week acc triple vibes

[@N99-f1h]

@@sarpibrahimhakkioglu4718 turkkk

[@steyci3603]

Tyyy

[@alexpickering6214]

Seen this comment two years later. How did you do?

[@xtopia9758]

thank you

[@meilingchen5653]

Honestly these videos are so so helpful, like it has only 3 and half minutes but I am getting knowledge that took 30 minutes in the lesson

[@itz_gaby_x3779]

Thank you so so much for these videos you raised my chemistry grade from a 2 to a 5 (guess I gotta start somewhere) and you raised by biology and grade from a 4 to a 6 and my physics grade from a 4 to a 7. Thank you :-) you are like my only hope for my PPE ‘s in three weeks

[@kphouton8438]

Don't worry about PPE'S that much, like revise a bit so its sticks in your mind for GCSEs and you don't have to go them a lot at the time. But I am currently doing GCSES and am now realising that all the stress and revision I did was worthless, like it is important but don't get too worried

[@misan2002]

what's ppe?

[@n.a7848]

@@misan2002 i honestly was thinking the same thing

[@blue2003_1]

pre public exams (mocks)

[@sameerrafiq63]

@@misan2002 mocks

[@Emma-hf3oh]

The one video with a slightly different thumb nail of him pointing 😂😂

[@Rosa-ve2nt]

When you're given 2 days to revise on the first week back at school with no warning:

[@rabs8850]

POV: *Online class has eventually brought you here.. or you could just be back at school and the teacher sent you this video.*

[@tilly3967]

Revising for Mocs actually 😫

[@natisandru6106]

Yep

[@lxzqs5529]

Mhm

[@richardaustin503]

Revising for Yr 10 mocks 😑

[@ducksuntzu1819]

@@richardaustin503 we had to watch this video to revise for year 6 mocks!

[@saneishakaye]

I have biology today, thank you for these short and condensed videos

[@willowbeamay]

I haven’t seen any 2023 gcse takers commenting yet but good luck everyone for bio tomorrow!!

[@TahaS01]

Exam tomorrow

[@abdulwadood3497]

Very excellent not a single useless word you use You are example of concerned

[@sulaymaan3730]

Hello , It seems you have missed a required practical for chemistry on water purification - thank you for these videos!

[@lovebirdsmagazine3481]

I never usually comment on youtube videos but, I am so grateful for your videos. Thank you so much :)

[@Freesciencelessons]

Thank you for the comment. I'm glad that you're finding the videos useful. Good luck in your exams.

[@zygote4786]

not me sitting at 00:40 studying for an exam in 8 hours

[@n35513.]

in the same position rn

[@edenb4230]

25 minutes before the bio exam who’s with me lol

[@nosir1479]

This is one of the rare videos where he wears a grey suit jacket

[@sia1036]

biology y11 mock tomorrow - you are a gift, sir!

[@Mohamed-lj1cg]

Sir,can you say antibody lymphocyte in the exam

[@Freesciencelessons]

The lymphocyte makes antibodies so yes that would be fine.

[@Mohamed-lj1cg]

@@Freesciencelessons Thanks sir againn

[@mosharif4158]

mohamed reaz ynwa 🔴

[@saeedbakht7976]

ur the best u got my grade from 6 to an 8 to all my science I got 8 and 9s thank you keep up the hard sir

[@plutosstrawberries]

is it the lymphocytes that produce antibodies and antitoxins? also, when the antigen-antibody complex is made, do we need to know that is makes it easier for the phagocytes to engluf the pathogens?

[@Az.podcast]

How was bio triple

[@sanchi7860]

Your videos are so helpful to me. I have a Biology exam coming up and your videos help me so much! Thank you :)

[@Freesciencelessons]

Good luck and sorry for the late reply. I hope that your exam goes well.

[@sanchi7860]

@@Freesciencelessons No worries!! Thank you so much. You are helping so many people with their exams which is just great. You are the best!

[@at3036]

there are phagocytes, what are the other two types of white blood cell?

[@gamingwithizzy7375]

2024 students? 30 DAYS LEFT!!

[@annax6743]

Thank you so much for this!!!

[@emeraldperson]

the only youtuber who has never had a sponsor

[@Freesciencelessons]

To be honest, I prefer to work alone so a sponsor is not something I've ever looked for.

[@arakurd6351]

@@Freesciencelessons Its ok my slime if the sponsor is gcse/education-related u can still make that paper 😈

[@xiaoyuxia431]

In exams can you use engulfs instead of ingests? Thank you Sir!

[@AliAhmad-mt6ed]

I just got a reply from freesciencelessons and he said you can use the word"ENGULF" but try to learn the word ingest

[@paullangton578]

Please finish biology paper 2 before the exam!

[@sarpibrahimhakkioglu4718]

why you watchin ppr 1 shit if ur worried on ppr 2

[@rufaidahasnat6452]

Sir, I think antigens and lymphoctyes are in the spec now becuase my teachers are teaching me those too but i could be wrong though

[@Freesciencelessons]

The AQA spec has not changed since it was issued in 2016.

[@rohan_n23]

sir when are you getting the practice questions

[@SirCreepus]

Bio exam 2019 anyone?? Banging out last night revision ;)

[@harlem8764]

Hey there sir. I've got a question. When the antitoxins get stuck to the toxins and prevents them from harming other cells, what happens to them later on? Do they just stay in our body being harmless?

[@Freesciencelessons]

No eventually they get taken in by cells and broken down to harmless substances.

[@Jason-o5s]

Cheer~~totally or partially resistant to a particular infectious disease or pathogen.😅

[@hassanmiah7068]

wow i cant belive the day has finally come bio paper 1 tomz

[@sarpibrahimhakkioglu4718]

good luck queen

[@dasboi8386]

1:10 in case* :)

[@NeverBleak]

You should have added that the first one is a Phagocyte white blood cell, and the other is lymphocyte. This was almost4 years ago, so i understand the scheme may have changed.

[@Freesciencelessons]

The words phagocyte and lymphocyte are not on the AQA GCSE spec, so I didn't use them.

[@skyblue643]

Hello sir when you say that antibodies 'trigger the pathogen to be destroyed' do you mean the antibodies themselves destroy the pathogens or do they allow the phagocytes to find and ingest them? (I do ocr gateway) thanks in advance

[@Sean-zu3ie]

do we not need to refer to them as phagocytes and lymphocytes? Thanks alot

[@Freesciencelessons]

Not for AQA.

[@ukyusuf8]

Whos here early for the 2024 gsce exams 😂

[@hafsakeyani7670]

do we have to know about antigens on the pathogen ? for aqa

[@Freesciencelessons]

No it's not required for the AQA spec.

[@c.k.a311]

Cant believe my teacher called this interesting. It was helpful though

[@kamaljotsinghdate4018]

What’s this difference beetween an antigen and antibodie?

[@su.haira.]

correct me if im wrong but i think antibodies are protein molecules that destroy pathogens and antigens are pathogen molecules which the antibodies destroy by latching onto

[@n.a7848]

@@su.haira. yep that exactly correct!

[@glossysiro1914]

two questions, what’s a lymphocyte? and for the diagram of the white blood cell engulfing the pathogen, is it a phagocyte? because the nucleus in the phagocyte in my revision book looks different PLEASE REPLY I NEED TO KNOW I HAVE EXAMS IN A FEW MONTHS

[@Freesciencelessons]

A lymphocyte is a white blood cell that releases antibodies (at GCSE level). The white blood cell engulfing the pathogen is a phagocyte. For GCSE, the shape of the nucleus is not important.

[@glossysiro1914]

Freesciencelessons does the lymphocyte also release antitoxins? Or is that another white blood cell

[@Freesciencelessons]

That's lymphocytes.

[@glossysiro1914]

Freesciencelessons THANK YOU SO MUCH

[@fireemperorzuko8756]

@@glossysiro1914 there's different types of lymphocytes too btw, but you don't need to know that for GCSE

[@seamusnolan5347]

Yes boys who’s here from merchants👌🏾😎

[@pinecone27]

TAYLORS? HELLO.

[@Elisa-jz9rd]

Is this paper 2?

[@Freesciencelessons]

No this is paper 1. It was a reupload because I'd missed a word out on one of the slides. Biology 2 will be starting in around a week.

[@Elisa-jz9rd]

Freesciencelessons ok, thank you! :)

[@Almohtadi1984]

Freesciencelessons Could you please start the videos from the beginning to the end from tonight until our final exams?

[@emilia2426]

what about antigens?

[@akshatkumar1684]

How immune system kill viruses as they have very less biochemical pathways of their own ? Could we develop immunity against virus by artificial means? By the way you are great teacher,you helped me a lot.

[@saddovibez_5733]

who else here in 2023 ughh

[@MilesMorales288]

yup

[@xiaoyuxia431]

This is saving my module tests in ya 10, oof

[@jadonjoel1477]

Aren't viruses immune to antibodies, but you give an example of a measels antibody.

[@RudZ_qlf]

Good luck everyone for tomorrow

[@charliematthews3969]

Jesus in a suit and talking about science ❤️❤️❤️

[@louisjaques1838]

how do antigens come into this can anyone help pls

[@Freesciencelessons]

Antigens are the molecules on the surface of the pathogen that the immune system identifies as foreign.

[@hazzamanjaro1256]

Whos here 20 mins before the exam. IMUNEEEE SYSTEM

[@NoorFatimaxx]

Why didn’t you mention anything about antigens?

[@Freesciencelessons]

It's not on the AQA spec.

[@cactojuice]

Good luck all in tomorrows paper 1 exam

[@aishashazad9469]

I have a biology mock exam

[@SleepingIsBeauty]

Went from a 22/40 to a 30/40 what kind of educational sorcery is this??

[@triovoyt1808]

Thanks Again!

[@AliAhmad-mt6ed]

Is it ok if you say "ENGULF" instead of ingest if you can't remember it?

[@Freesciencelessons]

Yes I would say that "engulf" is ok but I would try to learn "ingest".

[@tct5757]

Biology tomorrow 😮😮

[@sarikaravi8395]

I'm in Y8, and my teacher gave this link, and the title says GCSE 🤣

[@rabs8850]

😂😂

[@distaf2146]

I wish i was in yr 8 again. The most stress free year

[@phase0400]

@@distaf2146 So you would go back in year 8 and not revise?

[@iman2997]

my mock exams start this monday lol

[@mako.chiwariro9978]

Thank you sir.

[@sam-rm7ml]

Cheers again

[@lorcanbonser-wilton3222]

where’s my panicked end of topic test revision gang at?

[@MuhammadAkhtar-fb2sk]

It's so easy tp understand

[@user-xb2bd6lu8l]

Thanks my science teachers method of teaching is really slow and my Brain gets bored so fast

[@tobyrayment8920]

Do you have to know about memory cells?

[@wowiehowiethatscrayzy]

yep

[@samgb7238]

Can you come to my school?:3

[@elsxx1215]

an hour before the exam!! yikes

[@AayushChitnis]

That guy might have the most boring life but he makes mine better

[@trindog5843]

Our school calls him the grey man don't know why just always have

[@fireemperorzuko8756]

Domt disrespect Dr Donnelly like that again

[@ani06z]

ily

[@bactayyt5013]

question: describe the role of pathogen defence against disease? (3 marks) second question: describe the roles of white blood cells in tissue rejection? (3 marks)

[@XxEdWyatt353xX]

Exam in 2 hours oooofffff

[@calmandsensationalchannel3279]

@Freesciencelessons i'm confused. Are we doing 2 Test for Physics, Biology and Chemistry or 3 (without triple science included). and do you know what percentage you need for a 7, 8 and 9 from last years results.

[@Freesciencelessons]

You are doing 2 exams for each subject. Triple students do longer papers not more papers. Also we don't know the grade boundaries as this is the first year on the new system.

[@mr.blonde8808]

Freesciencelessons cheers for the nice advice

[@Mandmslol]

gcse 2025 where yall attttt

[@raeleighwood7026]

cramming for tomorrow lol

[@MavenTails]

3 hours to go

[@mphcox2277]

Forgive me if I'm wrong but isn't this bio

[@Freesciencelessons]

No you're correct. I've changed it. Thanks for letting me know.

[@mosharif4158]

Muhammad Daniel PE

[@rupokghosh1955]

Today is my bio exam lol

[@possssp3069]

You didnt really mention about antigens

[@Freesciencelessons]

It's not on the AQA GCSE spec.

[@possssp3069]

@@Freesciencelessons fair enough

[@crimzon720]

QUESTION - could you say digest instead of ingest? @freesciencelessons

[@ivan.s9700]

nice

[@gibb0848]

free sj man

[@sarameah8435]

such a 🐐

[@cpoohdjjdjdn]

Hello

[@Xray____]

GO SLOWER HOLY

[@cjkeys5040]

hello

[@Kaelido]

I love you

[@hayal1116]

My g

[@gubba7188]

Gl

[@sparklekitty4420]

Wly