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 been built to make learning and revision 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 comprehensive bank of past exam papers, organised both by year, and also by topic. Amadeus & Tom

Good luck with your exams everyone ;)

@Maria-jl5is

3 жыл бұрын

U too

@kirtip3605

3 жыл бұрын

U too thanks

@rubydower9752

3 жыл бұрын

u tooooo

@lilianagavilanpachon289

3 жыл бұрын

U too :3

@sophdixon8013

3 жыл бұрын

Why thank you I have mine today

I teach biology to non native English students. Your clear, measured language an diagrams help them.

@Cognitoedu

3 жыл бұрын

Thanks Liz - really glad they work in that setting 😊

I swear everybody I know tried to make me understand this but no one could you only took 6 minutes and I memorise every word and understand it too. Thank cognito thank you very much!

@Cognitoedu

3 жыл бұрын

Ah that's awesome to hear, thank you so much Mostafa 🤩

Thank you for this video. I loved it. The textbook is so complicated, the video was much easier to understand. I understood the concept very well. I am pretty sure that you will become popular very quickly.

@Cognitoedu

3 жыл бұрын

Thanks Neha, we're glad the videos are helping 😊

Video-Quiz: 1. Where are testosterone and oestrogen produced in men and women? 2. What happens with fertilised eggs vs unfertilised eggs? 3. How long is the menstrual cycle? 4. What happens during menstruation and how long is it? 5. What happens in stage 2 and how long is it? 6. When is ovulation and what is it? 7. What is stage 4 and how long is it? 8. When can the menstrual cycle stop? 9. What are the four main hormones of the menstrual cycle and what do they do? 10. Where are FSH and LH produced? 11. What is the relationship between FSH, oestrogen and LH? 12. What does progesterone do?

@Rabi-kb7vp

2 жыл бұрын

Thank you 👋

@abdinassor805

2 жыл бұрын

whats 11? they are all inhibited

@yaasinalikondeth6724

2 жыл бұрын

@@abdinassor805 FSH Increases Oestrogen, but as oestrogen increases it inhibits FSH. Oestrogen increases LH

@kamanyekuakauari8636

Жыл бұрын

Thank you sooooooooo much

@user-ob1yl6so6v

Жыл бұрын

i've an exam tomorrow it's gonna be very helpful tysm

Bro explained everything my teacher struggled to teach for a whole week in a time period of 6 minutes. That, indeed, is an absolutely astonishing feat.

@AzaanIQ74150

2 ай бұрын

U also got CIEs I'm May/June ?

@straightupsubstrate

2 ай бұрын

@@AzaanIQ74150 ye

@AzaanIQ74150

2 ай бұрын

@straightstrategist5193 Got 8 CIEs but prep is shit, starting from 26th April 😭

@AzaanIQ74150

2 ай бұрын

​@@straightupsubstrateGot 8 CIEs but prep is shit

@straightupsubstrate

2 ай бұрын

@@AzaanIQ74150 well my prep is barely satisfactory

exam guys who’s excited (not me)

@surullop7122

Ай бұрын

Real

@MudNic1

Ай бұрын

Yh man I love biology I'm so excited wooooo yeah (me after bio -> 💀)

@surullop7122

Ай бұрын

@@MudNic1 literally walking to school rn to take paper 2 😮‍💨

@kkk-de1oj

Ай бұрын

@@surullop7122 how was it mines tdy

cognito why are the eggs coquette

@aimenzahra-el5fs

Ай бұрын

STOP I JUST REALIZED LMAO. our editor is coquette that’s why

Need an i love cognition shirt rn ! So good

It took us guys one months of one hour classes twice a week to finish this chapter in class! But, i don't believe what superpower this guy has that he finishes these topics in 5 minutes!

Why hasn't this channel blew up yet?

You are growing very fast. By the time it is May you will be on 50K subs.

@Cognitoedu

5 жыл бұрын

We definitely hope you're right!

@bigboibejamin3776

4 жыл бұрын

Nah

@aidenwilliams4233

3 жыл бұрын

@@Cognitoedu unlucky

@SkylerHayes02

3 жыл бұрын

You sure?

@ananyap7072

3 жыл бұрын

u werent wrong!!! its dec 2020 and omg they hit 73.3 K SUBS

omg ty this so useful all other videos were either confusing or just straight up worng

Thank You very understandable and easy to follow vid I found menstruation the hardest when learning

Love these videos! They're so helpful. :)

Goodluck olevel candidates

amazing video, so informational. Maybe you could specify, in future videos, which information is necessary for each board. For example some things may not be needed for edexcel but for aqa. But still very good :)

@Cognitoedu

3 жыл бұрын

Thanks Karan we'll keep that in mind for the future 👍

I did great in the theory paper . I will have multi choice tomorrow . Thx for everything

Thank you! I finally understand

i have GCSE's tomorrow and this really helps my confidence so thankyou

@Cognitoedu

3 жыл бұрын

Hope they go well Morgan!

Thank you for this video!

Very helpful, thank you!

Thank you is never enough

good luck tomorrow yall

Good explanation, thank you very much

i was not able to understand anything in class and felt like i was gonna fail , but then now i have hope that i will do good and make my parents proud 😭😭 thankyou so much 🥲🥲

Realy understanding thank you

Found it very useful, I have started teaching igcse students ,found this video very helpful

Rough day tmrw lads

@lucdje5135

2 жыл бұрын

Tech aswell

@mynameispie8442

2 жыл бұрын

Yoh

literally got a 9 thanks to you :)

@ab-yu8vj

2 жыл бұрын

ive got my exam tomorrow was it hard?

@pinkmangooooo

2 жыл бұрын

How y know already lmao

Thank you so much!

It was incredibly helpful

Well said, thank you

My favourite video of all time ❤

u r the best of the best. thank u million times my best teacher.

@Cognitoedu

2 жыл бұрын

Thankyou Engi!! 😊

The video is really helpful like no joke but I love the drawing of the egg so much 😂is so cute lmao I can’t

i can only imagine what a year 7 class learning about this looks like

@cado9281

Жыл бұрын

I can assure you, it is hell. That's why I'm here, in fact.

@HA-wd2pu

Жыл бұрын

Lol i remember 5 yrs ago when we did Everyone just laughed their heads off and now we are worrying about all this stuff

@Wojbest_YT

Жыл бұрын

@@HA-wd2pu good times i miss those

Soo helpful for year 11 gcse 😁

Thank you again so much you are so helpful and im sure i will get a good mark cause of you thanks a lot

@Cognitoedu

3 жыл бұрын

Ah thanks Zahra, good luck 😊

@zahranabil6010

3 жыл бұрын

@@Cognitoedu hey i did the exam i was soo good in it this video helped me a lot thanks again so much

thankyou for stimulating my day

@achoo3001

3 жыл бұрын

what does this even mean?

@HannahThakkar-gk5iz

4 ай бұрын

Pun intended

is this for the edexcel specifiaction or does it not matter?

thanks a lot, sir. stay blessed.

Thanks bro you help me for exam

@Cognitoedu

4 жыл бұрын

You’re very welcome! Good luck 🙌

Wow thank you💓💓🤗

Thank you very much

Amazing absolute masterpiece I am very proud to have you on the internet and in my life. You are very inspiring to others and I will remember you when I write my exams by Adiplayzfn

This helps me so much with exams. Thanks to u I got a 6 in chem,biology and physics x

@Cognitoedu

3 жыл бұрын

Yay, well done Francesca!

Thank you

2024?

Hi... what happens to oestrogen when progesterone rises?

very helpful :)

My biology teacher always send the students here to watch his videos

I. Loved. This. Video

this helped so much however there's no mention of what causes progesterone level to increase and decrease in the interaction section? any tips

@ena-1717

3 жыл бұрын

An increase of luteinizing hormones triggers the corpus luteum to produce progesterone, however if an egg still hasn’t been fertilised by a sperm, the corpus luteum drops the levels of progesterone, therefore causing menstruation (idk if it’s all correct tho)

@tonyzambonistarkoni7868

3 жыл бұрын

@@ena-1717 oh that makes sense thanks :)

Thanks man

Thanks for the video! I'm a bit confused about why Oestrogen inhibits FHS in the first place?

@istoleyourtoast8037

2 жыл бұрын

because if it doesnt, then FSH will further stimulate more eggs cells to be released, so more sperms and egg cells will form more than one zygotes. Thats why when FSH is failed to be inhibited, people have twins and triplets. But usually, the human body is made to produce only one zygote. Hope this helps

what do you mean by high tier do you mean tripple science or just normal gcse science because i have been doing all except high tier by the way your videos are so helpful thank you

@Cloudey-puffo

11 ай бұрын

Higher tear GCSE biolagy is for students aiming for grade 4-9 it provides flexibility aswell chang-able and planeble exams + practicals hope that explains it :)

this was really helpful!! thank you so much!

@Cognitoedu

2 жыл бұрын

You're so welcome!

Sir! I have a question about progesterone. I do not understand the last part where progesterone inhibits both LH and FSH

@hamzie1010

3 жыл бұрын

Progesterone is basically the hormone that says 'oh hell no, LH and FSH. You ain't gonna be making more eggs any time soon!' In other words, Progesterone stops FSH and LH from affecting the menstrual cycle further until the next cycle comes in.

@gordonjin

3 жыл бұрын

@@hamzie1010 thank youuu!!

@williamwong8294

3 жыл бұрын

Hamzie Great answer!😀

@MusixandRandom

3 жыл бұрын

@@hamzie1010 thanks man!

@zakkhan3270

3 жыл бұрын

@@hamzie1010 cheers simplified it alot

What does here ER Freeze means in 3:20........

Thank youuuuuu

i have a question , what causes the secretion of progesterone ?

@Mr.Redstone007

Жыл бұрын

The release of FSH follicle stimulating hormone) and LH (lutenising hormone)

18 minutes before the exam

THIS H E L P S OMG THANK U

Last minute revision, it's 12 44 and I haven't learned this yet

how can i be a member

you are the best 👩‍❤️‍💋‍👩💋

knacks guy no progess made got man stressin

You got something rong in video the bleeding normal stays for 5 days not 4 depending on body

@accessnft1702

Ай бұрын

It actually ranges from 2-7 days It’s not specifically 4 or 5 days

@emilygrace6498

Ай бұрын

rong?

1:39 - 1:46

Who is here revising for tomorrow? 😂

@elliemurphy8514

Ай бұрын

mee

@medoran530

Ай бұрын

For "today"

@fattywatty69

Ай бұрын

Me for today

What stimulates FSH?

@Wojbest_YT

2 жыл бұрын

yo mama oooooooooooooooooooooooooooooooooooooooooooooooo

@emanali0063

Жыл бұрын

Pituitary gland i believe

Tyy

Bio tomorrow (yikes)

@KaylaMbalame

Ай бұрын

today😔

@KaylaMbalame

Ай бұрын

bit its the last one

the egg is just a girl🎀

@KaylaMbalame

Ай бұрын

🤣

@Radzwawacho

17 күн бұрын

😭😭

How dare you miss fannen make me watch this. I already know

@Wojbest_YT

2 жыл бұрын

who

@dunderheadhunter

2 жыл бұрын

@@Wojbest_YT my bitchy teacher

4 DAYS???? I WISH

@afifaileye9594

Ай бұрын

WRDDD 😭🤣

Good luck tomorrow igcse student 😂

@chuluschaap9129

3 жыл бұрын

Thanks

U

algorithm

@jacobnewton1900

3 жыл бұрын

algortihmuc

nkl

😑