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

Жыл бұрын

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

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

@chrissimmonds3838

3 жыл бұрын

Ikr

@lilya2499

3 жыл бұрын

i am proud of you for revising!!!!

@SkroefTV

2 жыл бұрын

Lol

@annabelvanpelt1196

Жыл бұрын

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

@chitmyatnoeoo9086

Жыл бұрын

How was your exam?

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

3 жыл бұрын

thank you so much

@official_jn2215

2 жыл бұрын

You dropped this bro 👑

@twowkrhbeskzj23

Жыл бұрын

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

@sadiaramzan2059

Жыл бұрын

@@twowkrhbeskzj23 same

@notshahmeer

Жыл бұрын

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

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

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

@serpent1874

3 жыл бұрын

same

@vampyr_v-v

3 жыл бұрын

Same

@merciless5407

3 жыл бұрын

Fr???? 😂😂😂🤡

@noahhand8873

3 жыл бұрын

And it makes no fucking sense

@prowl2252

3 жыл бұрын

same

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

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

@65.23

3 жыл бұрын

totally agree with ya

@jacobhamilton-crickmay2470

3 жыл бұрын

@@65.23 same

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

"Honestly-Im Fine" hahhhahahahaha

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

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

@scarlettbevan7756

3 жыл бұрын

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

2 жыл бұрын

@@scarlettbevan7756 Thank you so much!

@omarmagdy5189

Ай бұрын

sure

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

@Cognitoedu

3 жыл бұрын

Thanks Muhammed, we're glad to hear that 😊

@Anshays1

3 жыл бұрын

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

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

@Cognitoedu

3 жыл бұрын

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

@zni1925

3 жыл бұрын

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

I really appreciate you thank you so much.

Thank you u helped me in Bio....🙂🙂

this is one of the only science videos i can understand

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 😅

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

That help me so much in the test science nice

Bro nearly killed that guy 😂

@omarmagdy5189

Ай бұрын

who are you ?

u really better than any scientist

POV:You got this from your teacher

@ayeshaellahiperveen4254

3 жыл бұрын

U know it 😂🤚

@mayyx3638

3 жыл бұрын

lol yea

@samikshaaalagiri7649

2 жыл бұрын

nope

Well done guys you have earned yourself a 👍

10 MINS BEFORE MY EXAM

@pxneyxplays

6 ай бұрын

Lol fr

so we have all been sent this by our teachers

you are a king my friend

platelets: RUSH B

thank you veeeryy much!!

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

@omarmagdy5189

Ай бұрын

study english first

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

0:17 "honestly i am fine" 😂

@astrox-sj130

4 ай бұрын

gojo refrence

2:42 pirate micro-organism hahha love it.

@commenter7867

3 жыл бұрын

Yjfxchg

@murkyyyknows7935

2 жыл бұрын

?

@domdom9496

2 жыл бұрын

@@murkyyyknows7935 2:42

so good thanks 🙂🙂🙂

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

5 жыл бұрын

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

5 жыл бұрын

@@Cognitoedu oh that's well cool.

@VeganV5912

3 жыл бұрын

Cognito >> I had a stroke. Very bad stroke. Three months in the hospital. Surgery on my brain 🧠. I had hard arteries eating meat et cetera. In your leg, and in your arm and stomach, don’t noticed that, blood work ruptured. But in your brain 🧠😑 coma 🏥 . Now that I’m vegan, 6 years vegan ✅❤️😬🦷💪, I have smooth arteries. That is scientifically a fact. kzread.info/dash/bejne/doqVl8Z6h5O4lag.html . Dr Greger. Science rules. You’re not supposed to eat meat and chicken and fish and eggs et cetera. We’ve got flat teeth 🦷. Little flat teeth 😬(✅❤️). That’s scientific fact !! Meat eaters et cetera, have cancer and heart attack and high blood pressure and strokes... 51% death rate !!! Vegans have 4% cancer, and that’s it. Scientific fact. 🐒🐵🦍✅❤️😬🦷💪 1% cancer !!! 99% the same as us !!! 1% cancer in the wild. Scientific fact !! kzread.info/dash/bejne/f46kls6bobmYaKQ.html . kzread.info/dash/bejne/oHuZ0rypmcu2eag.html . kzread.info/dash/bejne/dZmq0Klrfsi4Xc4.html . Timelapse. 1 or 2 minutes 🤮. Actual pictures ! Rotting flesh, sit inside your stomach, for 5 days 🧟‍♂️🦠💩🐷.... Actual video ! 🤮. Inside your guts, rotting meat. Meat has NO fibre, 0% !! Deodorant mask your symptoms, but you still smell like a corpse !! Scientific fact !! 5 minutes !! Please watch this ! It’s incredible !!! Vegans poo, next day !!! That is scientifically a fact !!! And clean, 100% fibre ✅💩. Meat eaters poop 🍖💩😷🤮 stinks like a corpse !!! Scientific fact !!! COVID-19 is meat and fish and chicken.... et cetera Spanish flu, 1918s, 100 Million died, from pigs 🐷💩🦠🍖😵. Coronavirus, From Bats, et cetera 🦇💩🦠🍖😵. Bird Flu, From Chickens 🐔💩🦠🍗🐣😵. Swine Flu From Pigs 🐖💩🦠🍖😵. Mad Cows Disease, From Cows 🐄💨💩🦠🤪🥩😵. SARS, From Bats 🦇💩🦠🍖😵. 👆Hint hint 🐷🦇🐒🐮🐔🐣🐟.... 💩🦠🍖😵!!!!! Yeast is B12 ! B12 12.0g (480% NRV🥳). Fish are the second B12, and there is mercury and PCB ☠️🐟. Science fact !!! which side of history are you on ? The oppressor, or vegans ✅ ??? “As long as man continues to be the ruthless destroyer of lower living beings he will never know health or peace. For as long as men massacre animals, they will kill each other.” Pythagoras 495 BC ✅❤️👏💪🌎 Delicious vegan food, from KZread. For vegan curry, or vegan tacos 🌮, or vegan oats ✅😋🌾🍏🍊🍓🥝........ 80,000 plant foods that’s edible...... Try it now, or you’re just a coward, and a hypocrite🧟‍♂️🦠💩🔴🐷⛓🔨😈🔪... Healthy vegan food, from KZread, Low price, no murder !! Try it now ✅❤️🌾🍄🍠🥦🥑🍅🥝🍏🍊🌰🥜🌯🌮🍛.......

@qu1z_itive

3 жыл бұрын

@@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

3 жыл бұрын

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

POV: This is my Homework 💀

My Biology teacher sent out class this to review

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!

Love the subtle jokes.

"Honestly I'm fine" 😭

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

this quarantine is driving me to do stupider and stupider things

0:18 is my train of thought at the moment

That was.... bloody.

@ThomasMilner-sg7qm

4 ай бұрын

Ha

@ThomasMilner-sg7qm

4 ай бұрын

Ha

@ThomasMilner-sg7qm

4 ай бұрын

Ha

Im waiting for the test on Friday

@ERROR-ve5ir

Ай бұрын

real

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

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

@tokyo6550

Жыл бұрын

Wrong

@theatrekidkeira5410

Жыл бұрын

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

'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

Like if you were sent by your teacher.

@catlover3332

4 жыл бұрын

🙋‍♀️🙋‍♀️

@milz17

4 жыл бұрын

Me

@mayyx3638

3 жыл бұрын

me

keep going im almost finished

what about memory cells

Thanks

I have been sent from google classroom lmao

@mayyx3638

3 жыл бұрын

same except from teams lol

@AshHate143

3 жыл бұрын

Came here for early revision

hello other bgs people

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

@Harry78996

2 жыл бұрын

I'm yr 10

I HIT THE NOTIFICATION BELL DIGN DING DNIG

@Cognitoedu

2 жыл бұрын

YAY!! 🤩

0:12

niceeeeee

Yay online learning >:(

🕺

my teacher brought me here innit

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

Ffs it’s always bloody cognitio isn’t it

Hm

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

@Cognitoedu

2 жыл бұрын

Ah thank you!! 😊

Honsetly im fine

Bchs😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭💩💩💩💩💩💩💩💩💩💩💩💩💩💩💩💩💩💩💩💩💩😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😜😜😜😜😜😜😜😜😜😜😜😜😜🤪🤪🤪🤪🤪🤪🤪🤪🥸🥸🥸🥸🥸🥸

Be spelled Haemoglobin wrong 0:42 He said Haemaglobin Xd

Me don't learn nothing

I really did not enjoy