GCSE Biology - What Is Blood Made of? / What Does Blood Do? #25

[@Cognitoedu]

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 built specifically to make learning and revision as quick and 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 huge bank of past exam papers, organised both by year, and also by topic. Amadeus & Tom

[@Huehale]

Did you know? After 1460 days, you are 4 years closer to your demise

[@vxsionedits9505]

im really sat here revising for my test, never thought the day would come

[@chrissimmonds3838]

Ikr

[@lilya2499]

i am proud of you for revising!!!!

[@SkroefTV]

Lol

[@annabelvanpelt]

Same it’s one week before GCSE mocks and I’m finally revising 😩

[@chitmyatnoeoo9086]

How was your exam?

[@Matt-xh7wq]

Post-Video Quiz: 1. What are the four parts blood consists of? (0:04) 2. What does RBC stand for? (0:21) 3. How do RBCs carry oxygen? (0:41) 4. Name two adaptions RBCs have to make them more effective at their jobs? (1:07) 5. What are the three ways WBC deal with pathogens? (1:38) 6. What purpose do platelets serve? (2:18) 7. What purpose does plasma serve? (2:51) 8. What are the benefits of 'artificial blood' vs blood transfusion? (3:47)

[@summer5458]

thank you so much

[@JxmzTheOne]

You dropped this bro 👑

[@twowkrhbeskzj23]

thank youu this is super helpful for my revision on exams and tests

[@sadiaramzan2059]

@@twowkrhbeskzj23 same

[@notshahmeer]

Thx alot mam this really really helped I appreciate the hard work u put in this just for us

[@dealusion]

the material my teacher gave us to study components of blood made my head spin, but you have summarized it so well! I owe you a lot

[@alishbaqureshi9041]

The: *"honestly, I'm fine*" had me

[@tanishkverma3457]

dude u guy are awesome u shud be subscribed up to 2 million at least the hard work u do for the animations and the way u teach is the best...so u r worth more than 2 million

[@mumtazxxxx]

totally agree with ya

[@jacobhamilton-crickmay2470]

@@mumtazxxxx same

[@basher7568]

my teacher told me to watch this instead of actually teaching me

[@Fuhzen]

same

[@4tunesfavour]

Same

[@merciless5407]

Fr???? 😂😂😂🤡

[@noahhand8873]

And it makes no fucking sense

[@prowl2252]

same

[@twopolaar599]

I know future me will be binging these videos before the exam, so good luck future me, I hope you havent crammed everything for the last minute 😅

[@mochu8944]

I’ve been revising for over 2 hours now and this is the last video I have to watch I’m so glad 😭

[@j.xchewy5834]

Can you add the explanation of the different types of white blood cells such as lymphocytes and phagocytes?

[@scarlettbevan7756]

The phagocytes are the white blood cells that change shape to engulf/consume pathogens via phagocytosis There are different types of lymphocytes with different functions Type b produce the antibodies and another type produce antitoxins to neutralise the toxins produced by the microorganisms

[@bby9110]

@@scarlettbevan7756 Thank you so much!

[@omarmagdy5189]

sure

[@zni1925]

really professionally done and clear to understand. One little remark - the correct spelling is heamoglobin.

[@Cognitoedu]

Hi, thanks for the comment. The UK spelling is 'haemoglobin' (which is what we use in the video), while USA spelling is 'hemoglobin'.

[@zni1925]

@@Cognitoedu Ha ha, even I wrote it wrongly, sorry, typo. I meant you have written it wrongly haemAglobin, the correct one is haemOglobin.

[@user-up5ig3pq2q]

this is one of the only science videos i can understand

[@vanillacat.]

ur videos are litterally the best omg and so well animated :D can u try to make videos of more advanced topics in detail too as u make such great videos that are easy to undersatng thnxx

[@MuhammadRaza-fe9gg]

Thank you soo much for such simple and understandable videos, these help me clear all my doubts

[@Cognitoedu]

Thanks Muhammed, we're glad to hear that 😊

[@Anshays1]

@@Cognitoedu yes sir thank you u cleared my doubts very funny person jk

[@Bru-sci]

Hello there´s an error in the video, it should be spelled as haemoglobin, not haemaglobin at second 44. By the way I love this channel, it saved my time and you guys summarized the contents extremely well. Thanks cognito.

[@Ibrahimalsawady]

i really owe you so much because im missing out on alot of lessons cuz im sick and im sitting here watching ur vids:) (i also watched the gas exchange and lungs video they were awsome)

[@Cookieplayxz]

"Honestly-Im Fine" hahhhahahahaha

[@mohdnasir2076]

u really better than any scientist

[@natalya5827]

Never really thought I would be sat here, desperately revising for a science mock exam😭😭

[@omarmagdy5189]

study english first

[@theatrekidkeira5410]

Red: 0:30 White: 1:23 Plasma: 2:12 Platelets: 2:47

[@tokyo6550]

Wrong

[@theatrekidkeira5410]

@@tokyo6550 only did this for my benefit not urs xx

[@jacoblofthouse510]

Well done guys you have earned yourself a 👍

[@sithikakariawasam]

Thank you u helped me in Bio....🙂🙂

[@poyolok0385]

platelets: RUSH B

[@adhamahmed2819]

Can i ask a general question? I know i wont need this information for the exam but im curious to know. Since the blood does not flow like a river but in are veins and arteries, how does the platelets heal the wound? does it diffuse? or some other process? Thank you!

[@Cognitoedu]

So basically - the platelets will just be in the blood, and they'll bind to the wound as they float by. They'll be attracted by chemicals that are released from the wound, and there also will be receptors they can bind on to. Hope that helps!

[@ASprinkleOfRandom]

@@Cognitoedu oh that's well cool.

[@VeganV5912]

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[@qu1z_itive]

@@VeganV5912 huh - what ? i cant understand a thing you ar3 saying,, i cant tell if itz sarcasm, or if your3 being seriouz, im so confused?? if you wanna b3 a vegan then, cool! good for you, thatz prettu cool! but jus dont push it onto otherz pleas3 ,,, okau rambl3 over

[@VeganV5912]

@@qu1z_itive B3, mushrooms, avocados 🥑, sweet potatoes 🍠......

[@Wrenwinterfall]

Thanks so muchhh for this helpful video with useful visuals

[@nine1391]

Bro nearly killed that guy 😂

[@omarmagdy5189]

who are you ?

[@chillhopify]

0:17 "honestly i am fine" 😂

[@astrox-sj130]

gojo refrence

[@khangtran7608]

That help me so much in the test science nice

[@thelittlecommentator6576]

Can you do blood typing ? Like the A,B,AB,O thing

[@cook9542]

you are a king my friend

[@duasbored]

bro literally explains a topic in 4 mins that my teacher took 30 minutes to explain 😞🙏🏻

[@milz17]

Like if you’ve been sent this by your teacher because ur working from home due to coronavirus

[@s.m0690]

I really appreciate you thank you so much.

[@gotta_luv.smil3]

Im waiting for the test on Friday

[@ERROR-ve5ir]

real

[@domdom9496]

2:42 pirate micro-organism hahha love it.

[@commenter7867]

Yjfxchg

[@murkyyyknows7935]

?

[@domdom9496]

@@murkyyyknows7935 2:42

[@Anshays1]

op sir best video i have ever seen omg omg omg omg omg omg omg omg omg ( this helped me alot though )

[@vfxgenie983]

0:18 is my train of thought at the moment

[@Harry78996]

My Biology teacher sent out class this to review

[@Akagami_shnxs]

so good thanks 🙂🙂🙂

[@yes3165]

10 MINS BEFORE MY EXAM

[@pxneyxplays]

Lol fr

[@APHEXACE]

POV:You got this from your teacher

[@ayeshaellahiperveen4254]

U know it 😂🤚

[@mayyx3638]

lol yea

[@samikshaaalagiri7649]

nope

[@artwithkidz1783]

anyway at least this'll help with my work... thanks

[@Rng_killer2324]

3:33 classical London music starts playing

[@Hab.hashish]

'honestly I'm fine'. I came all the way to youtube to see the comments of other people who also found this hilarious. I was on the website tho

[@storm-xm3ri]

keep going im almost finished

[@milkb4cereal_23]

"Honestly I'm fine" 😭

[@mt.libertybell9250]

That was.... bloody.

[@ThomasMilner-sg7qm]

Ha

[@ThomasMilner-sg7qm]

Ha

[@ThomasMilner-sg7qm]

Ha

[@sarahlovescoquette]

THIS COMMENT IS SO UNDERRATED 😭😭😭

[@azurevoyagesfa]

POV: This is my Homework 💀

[@ryeidk4627]

I have a question, what if someone ends up coughing blood and another question is are blood tests and plasma therapy the same... Thank you!

[@ifwewerea4950]

I have been sent from google classroom lmao

[@mayyx3638]

same except from teams lol

[@AshHate143]

Came here for early revision

[@aleks4888]

this quarantine is driving me to do stupider and stupider things

[@eio2322]

Hey, if and insect absorbs our blood, are wbc and rbc are transfered to them? Plz answer

[@tokyo6550]

Love the subtle jokes.

[@millebeth5731]

so we have all been sent this by our teachers

[@endie135]

I HIT THE NOTIFICATION BELL DIGN DING DNIG

[@Cognitoedu]

YAY!! 🤩

[@usmanfarooq7709]

what about memory cells

[@artwithkidz1783]

this is for gcse and im in yr 7 ... i dont understand anything

[@Harry78996]

I'm yr 10

[@ka1458]

thank you veeeryy much!!

[@mowliidxuseen1651]

Giemsa stain procedure

[@emiliashuttleworth5748]

hello other bgs people

[@tezawr3963]

Thanks

[@caitlinmccann5243]

Like if you were sent by your teacher.

[@catlover3332]

🙋‍♀️🙋‍♀️

[@milz17]

Me

[@mayyx3638]

me

[@sunshineglacier607]

0:12

[@MA-rp3em]

I dont like the video because im watching it in school instead of sleeping

[@callumhill6744]

my teacher brought me here innit

[@only_success404]

niceeeeee

[@minemaker9042]

who here cause their teacher made them? -------------------->

[@ronzy3454]

Ffs it’s always bloody cognitio isn’t it

[@imisiadeparusi4389]

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[@arabian_yonisb2912]

Be spelled Haemoglobin wrong 0:42 He said Haemaglobin Xd

[@Robyn_bob]

🕺

[@randomantguy24]

Yay online learning >:(

[@way2saturn]

Honsetly im fine

[@nabeeldodhi9669]

Pineapple

[@WEEBWHOSELLSWEED]

If only I could increase a 1000 subscribers more for you...

[@Cognitoedu]

Ah thank you!! 😊

[@mohammadnusair]

@@Cognitoedu Dude how r u doing,

[@SpikeyClips]

Me don't learn nothing

[@hamzadahlan3076]

I really did not enjoy

[@winterv3vo]

Hm