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GCSE Biology Revision "Transpiration" 

Freesciencelessons
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In this video, we look at transpiration. First we explore what is meant by transpiration, then we look at the factors that affect the rate of transpiration. Finally, we look at how stomata open and close.
This video is based on the AQA spec. If you are following a different exam board then you should check your specification. The Amazon link above is an affiliate link. This provides a small commission which helps to support freesciencelessons. The cost remains the same to you. If you prefer not to use this, you can search Amazon for the Freesciencelessons workbooks.
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27 июл 2024

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Комментарии : 303   
@conehead
@conehead 4 года назад
top 10 people who'd make the whole UK mourn if they died
@noorarif4905
@noorarif4905 4 года назад
Not just the UK, I'm in the middle east and this guy is my saviour
@_Dreamer_9306
@_Dreamer_9306 3 года назад
@@noorarif4905 same
@MintyMinho
@MintyMinho 2 года назад
@@_Dreamer_9306 what's an army like myself doing here? 0_0
@Hello-gr3jn
@Hello-gr3jn 2 года назад
@@MintyMinho trying to pass while streaming mvs
@softkookie-ii9ph
@softkookie-ii9ph 2 года назад
@@MintyMinho hello Army :D
@aqkzz808
@aqkzz808 3 месяца назад
who else is here for gcse 2024?
@hobzyx3184
@hobzyx3184 5 лет назад
His smile cures my depression
@jimniieee3258
@jimniieee3258 5 лет назад
same 😂 i always skip to the end just to see his smile 😂😭
@hannahheath2529
@hannahheath2529 4 года назад
This is the most underrated comment in history
@jivonmathew1871
@jivonmathew1871 3 года назад
BAHAHA ENNIT 😂😎
@_Dreamer_9306
@_Dreamer_9306 3 года назад
Same
@patrickrabey4498
@patrickrabey4498 2 года назад
😂Hope you're good mate
@at3036
@at3036 6 лет назад
how do you condense 2 hours learning into 4 minutes and even add some extra stuff!
@NikoNC
@NikoNC 5 лет назад
A T303 because teachers give too many questions for us to answer
@manav2882
@manav2882 5 лет назад
Teachers waffle sm sometimes and don’t tell you the specific parts that are relative to the specification and exam
@soysauce164
@soysauce164 4 года назад
@@Name7.62 ok undercover teacher
@zcontrols-gamesanimeandmor9249
@zcontrols-gamesanimeandmor9249 4 года назад
@@Name7.62 ik I'm late but that's why I'm here
@ballztoeclippings1619
@ballztoeclippings1619 4 года назад
@@Name7.62 Sorry mrs
@romywalton5407
@romywalton5407 5 лет назад
You sir, deserve a knighthood
@nerd_yboi8771
@nerd_yboi8771 4 года назад
The man, the myth, the legend itself..
@alicialee9366
@alicialee9366 4 года назад
Nerd_Y Boi himself*
@thomastaylor9600
@thomastaylor9600 4 года назад
I'm sat in quarantine confused, guess whos just explained it better than anyone in 4 minutes! you're a life saver :)
@Freesciencelessons
@Freesciencelessons 4 года назад
Thanks. I appreciate your comment.
@k3nz1e73
@k3nz1e73 3 года назад
@@Freesciencelessons ♥️ ✊🏿
@emmie8088
@emmie8088 5 лет назад
your videos are great for people like me, who has had a substitute teacher in all sciences since year seven (I'm in year eleven now and has just gotten my first proper teacher)
@ZippyDoodah
@ZippyDoodah 5 лет назад
damn, i get you
@hollybaldwin2617
@hollybaldwin2617 5 лет назад
Literally what has happened to me! Just trying to learn the whole course over a weekend
@ninji336
@ninji336 5 лет назад
I feel you
@blankblank8176
@blankblank8176 4 года назад
same to me but in math. My science teachers still can’t teach tho😹
@shaunak3727
@shaunak3727 Год назад
you're in university now?
@jashmayalimbu3768
@jashmayalimbu3768 4 года назад
Someone give this man a Nobel peace prize 🙏🏼
@conorjhales
@conorjhales 2 года назад
just did paper 1 today and after watching this video countless times over the last few months and finally understanding, it really helped in the exam! THANK YOU SIR
@ThatGirlAtTheConcert
@ThatGirlAtTheConcert 6 лет назад
You are an absolute legend! If I somehow (against all odds) manage to pass this biology test, it'll be a miracle, and it'll be mostly down to you thank you so much.
@torigarcia5346
@torigarcia5346 5 лет назад
how did it go?
@ZippyDoodah
@ZippyDoodah 5 лет назад
yea how did it go :O
@rahul.d4576
@rahul.d4576 4 года назад
it how go did?
@justsomeone5660
@justsomeone5660 Год назад
how did it go?
@dxleela9239
@dxleela9239 Год назад
how'd it go?
@pheobemakintosh4986
@pheobemakintosh4986 5 лет назад
I’ve never learned so much information that was so clear and concise in 4 minutes !!
@Escape828
@Escape828 5 лет назад
The intro music is very calm and relaxing
@tasnemali176
@tasnemali176 2 года назад
you are a lifesaver tell me how I went from crying in a two-hour lesson because i didn't get it to learn it all in 4 mins. u deserve the world
@Freesciencelessons
@Freesciencelessons 2 года назад
Thanks for the comment. I'm glad that I could help.
@zarahussain6146
@zarahussain6146 6 лет назад
Literally watching this the night before the exam tomorrow biology paper 1!
@abdulmajeedabdi9631
@abdulmajeedabdi9631 5 лет назад
@@yusufmalik2840 she had finished before
@ZippyDoodah
@ZippyDoodah 5 лет назад
@@abdulmajeedabdi9631 hahahaha
@kotaamemiya8833
@kotaamemiya8833 5 лет назад
same. except its the morning of the exam :/
@SmajorX
@SmajorX 5 лет назад
me too
@amalmohamed7062
@amalmohamed7062 5 лет назад
Abdulmajeed Abdi 😂😂😂😂😂😂😂😂
@alphax8100
@alphax8100 3 года назад
3:41 EVERYONE for his one and only smile 😃😂
@aisha9884
@aisha9884 3 года назад
its 5:30am and im binge watching these for my mock today :) my teacher didnt even teach me half this spec!! thank you
@everythingtv4875
@everythingtv4875 Год назад
that’s exactly what i’m doing and it’s 5:30!
@user-xs6el3vp2h
@user-xs6el3vp2h 8 месяцев назад
me too i have a bio mock tomorrow and i'm bingeing the whole of the paper 1 videos lol
@daboss8504
@daboss8504 2 года назад
This guy is ******* amazing he explains it so quickly an well. good job!
@productiwini4879
@productiwini4879 5 лет назад
thanking God for your existence
@erinmalik.
@erinmalik. 4 года назад
shaun you are the one true legend of our times
@theothomas510
@theothomas510 5 лет назад
Thank you for all the assistance you’ve given me in my sciences! Chemistry on Thursday...
@jaydubelyew6811
@jaydubelyew6811 3 года назад
Your videos are cooler than plants after transpiration
@zelinoz3783
@zelinoz3783 6 лет назад
Thanks alot you really am helping me and others with knowledge which we find hard to find these days
@cam8257
@cam8257 4 года назад
Are you stuck? steps to being un-stuck in science 1.boot up youtube 2.type problem + free science lessons -----> pog ass life
@chaddedmapipi5789
@chaddedmapipi5789 3 года назад
That's epic
@-Pollux-
@-Pollux- 3 года назад
Works for me
@neophote6626
@neophote6626 Год назад
Thank you have my bio paper 1 on Tuesday :)
@neophote6626
@neophote6626 Год назад
2 days passes just like that I now have it in 1 hr and 37 m ☠️
@theultimatecookie394
@theultimatecookie394 Год назад
@@neophote6626 Good luck and I hope you do well in your GCSE Exam, Inshallah!
@AmanTheMan
@AmanTheMan 4 месяца назад
​​@@neophote66269 months pass just like that you have now finished it💀
@msmgamesyt
@msmgamesyt 2 года назад
Sitting gsces in a month.....wish me luck Sean!
@GgGg-tz1tl
@GgGg-tz1tl 2 года назад
Biology today 😬😬
@BroSefat06
@BroSefat06 3 года назад
This is the GOAT for science lessons, saved lives of many students
@WhiteFang62
@WhiteFang62 2 года назад
this man is the reason im not bottom sets for science
@a-gradehydroponics6508
@a-gradehydroponics6508 6 лет назад
Great video explanation! Keep up the good work guys!
@Hokages1mp
@Hokages1mp Год назад
this guy is a real help and life saver, thank you!!
@dalbirgill6687
@dalbirgill6687 3 года назад
Sheeesh! Nice tie, relevant to the topic as well.
@probeatz8833
@probeatz8833 6 лет назад
hello I am a student and at first I was a grade 5 in science since I started watching your videos I am a grade 7 in combined science
@HelloKitty-wu5mh
@HelloKitty-wu5mh 6 лет назад
thats so sick!! do the teachers like teach in your school? cause in my school they sit around on their phones
@promise.4162
@promise.4162 6 лет назад
lol same
@queen_6095
@queen_6095 6 лет назад
Pro Beatz 1
@existinguser7788
@existinguser7788 5 лет назад
wow I only started watching these a few months ago and I'm getting good scores in science in year 11, you must be on the way to an A* if you're watching in year 7/8. Keep it up bro.
@jjangbeoms4346
@jjangbeoms4346 6 лет назад
Finally finished all of the Bio paper 1 topics! Thanks sir :)
@revulver6239
@revulver6239 6 лет назад
armwaaaryyy
@needzzz4873
@needzzz4873 4 года назад
Armyyy 💜
@MintyMinho
@MintyMinho 2 года назад
@@needzzz4873 how do you know they are an army?
@dagod3960
@dagod3960 4 года назад
Started revising in yr 11 i keep saying next week i will revise properly, procrastinating is real. 20 Mondays to go
@shanzayaman9988
@shanzayaman9988 6 лет назад
Thank you so much , your videos are super helpful ❤️
@monet8353
@monet8353 2 года назад
Biology exam tomorrow and this man is the only reason I’m gonna do well 😭
@mowfulasajahan2188
@mowfulasajahan2188 4 года назад
Really good explanation about the opening and closing of the stomata...Thnq sir Clearly got it
@joshuaroberts3734
@joshuaroberts3734 3 года назад
i am in love with this man
@grimbleweed4026
@grimbleweed4026 4 года назад
this man is a ducking legend!
@BunnyBoooBunny
@BunnyBoooBunny 6 лет назад
Great, informative video as always! :)
@BunnyBoooBunny
@BunnyBoooBunny 6 лет назад
Translocation next?
@Freesciencelessons
@Freesciencelessons 6 лет назад
Hi and thanks for the comment. You have to know hardly anything about translocation (essentially what it is) so I've included that in the video Plant Tissues.
@kashifhussain4898
@kashifhussain4898 4 года назад
Yes yes yes thanks sooooo much. If it wasn’t for u I wouldn’t have got my 3** in science overall I had 6** 3As and 2 bs
@andrewsulaiman5639
@andrewsulaiman5639 5 лет назад
This guy gives me confidence
@kaiproductions7233
@kaiproductions7233 2 года назад
Watching this the night before bio mock thanks shawn
@aniizayallahow8818
@aniizayallahow8818 3 года назад
Thank u so much for the wonderful video
@roger_2250
@roger_2250 5 лет назад
Thank u so much. U saved my life
@climax7260
@climax7260 5 лет назад
Thank you for your vids.
@amttpassion9371
@amttpassion9371 5 лет назад
thanks, your videos help a lot, sir...
@studybro2082
@studybro2082 Год назад
The hero we all needed....
@ellagillingwater9733
@ellagillingwater9733 3 года назад
You are literally a life saver a love you
@ajithhewapalliyaguruge3226
@ajithhewapalliyaguruge3226 3 года назад
You are saving lives
@charliebrett7510
@charliebrett7510 5 лет назад
Thank you, very helpful
@MorganOwen8958
@MorganOwen8958 5 лет назад
awesome video sean thanks for telling me how to dry my clothes quicker
@amilu9006
@amilu9006 Год назад
you saved my life sir ly ty
@OmarSajeel
@OmarSajeel 9 месяцев назад
your the best teacher ever sir Alhamdulillah
@sulaymaan3730
@sulaymaan3730 6 лет назад
Hello and thank you for these wonderful videos - just wondering when the plant closes it's stomata meaning it cannot photosynthesise Is that when the plant uses starch as the storage molecule as energy to make food etc.. ? Thank you
@Freesciencelessons
@Freesciencelessons 6 лет назад
Yes if the plant cannot make glucose because photosynthesis is not active, then it will break down the starch stores, releasing glucose for respiration.
@sulaymaan3730
@sulaymaan3730 6 лет назад
Freesciencelessons Thank you!!
@noorarif4905
@noorarif4905 4 года назад
I wish we could save comments, you asked a great question, there!
@roxc453
@roxc453 3 года назад
this is a really good question
@simplyfreedom
@simplyfreedom Год назад
got the biology paper 1 year 10 mock in 3 weeks ill update with my score
@thomasaldridge7799
@thomasaldridge7799 4 месяца назад
Go on
@ELLIPTICALWR
@ELLIPTICALWR 2 года назад
hey sir! Do you have any tips for remembering the required practicals steps 1-6
@hibasimom276
@hibasimom276 5 лет назад
Hi, I'm having a hard time understanding this. So, transpiration is the evaporation of water on the surface of the leaf right? As, leaf evaporates water, water vapour passes through tiny air spaces in the spongy mesophyll and out the stomatal, which cause water loss in the plant. The root hair cell transports water to xylem vessel cell to transport it to the rest of the plant to make up for water loss and for photosynthesis to occur. (Mineral ions - mg for chlorophyll too. Is this the transpiration stream?
@ella2237
@ella2237 6 лет назад
Hiya will you be making a playlist ? For paper 2 of biology ? X
@Hana-rp5lg
@Hana-rp5lg 2 года назад
Love your vids
@juwaria
@juwaria 4 года назад
Thank you so much :)
@devannsh7814
@devannsh7814 6 лет назад
Great job
@a.kzz_6880
@a.kzz_6880 Год назад
is this a required practical topic?
@isaacdinho
@isaacdinho Год назад
biology in 5 days!! good luck
@abolina2005
@abolina2005 6 лет назад
Thanks!
@jackdavvies8938
@jackdavvies8938 4 года назад
Sir, at 2:36 of your captivating science lesson what does that link to I’m generally confused does the stomata just naturally open up to carbons dioxide I would appreciate it if you replied thanks.
@Freesciencelessons
@Freesciencelessons 4 года назад
When light intensity increases, this causes the rate of photosynthesis to increase in the plant cells, including the guard cells, which control the size of the stomata. This increased rate of photosynthesis causes a series of reactions to take place in the guard cells which cause them to change their shape, opening the stomata.
@jackdavvies8938
@jackdavvies8938 4 года назад
Thank you so much your videos are literally the best I bought all your revision workbooks
@mimibaker322
@mimibaker322 5 лет назад
Biology paper 1 tomorrow. Pray for me
@umarbinadnan7056
@umarbinadnan7056 5 лет назад
Bro you are the best
@Freesciencelessons
@Freesciencelessons 5 лет назад
Thanks, I appreciate your comment.
@zahiddatoo
@zahiddatoo 5 лет назад
It’s 3 am and I’ve got my GCSE biology paper 1 tomorrow! 🤬😢watching this really refreshed my memory
@UnKnown-bg7jh
@UnKnown-bg7jh 5 лет назад
wait your aqa gcse?
@anonymousfan8449
@anonymousfan8449 5 лет назад
mine is on Tuesday :( 😢
@zeemish
@zeemish Год назад
Thank you very much Sir
@avinash8595
@avinash8595 6 лет назад
very good knowledge
@kevalpopat6725
@kevalpopat6725 6 лет назад
How can I access all the videos for aqa paper 2, 4 and paper 6?
@hayden12321
@hayden12321 2 года назад
Honestly these comments bring me so much happiness 😭
@norah7184
@norah7184 3 года назад
Wow I really just revised that whole Organisation topic in one night. Talk about being organised...
@lajimolala5647
@lajimolala5647 5 лет назад
Can you do translocation please? Great vids, thanks!
@alihussain5629
@alihussain5629 Год назад
great video but i have a question.what is transpiration in a simple definition. I think it would be how water frm the plants go up through the stem by the xylem and into the atmosphere. is that right, sir?
@Freesciencelessons
@Freesciencelessons Год назад
Transpiration is the evaporation of water from the cell surfaces in the leaf and the diffusion of the water vapour out of the stomata.
@mariya8953
@mariya8953 6 лет назад
do you think they'll ask us the steps of the transpiration stream in the exam?
@Freesciencelessons
@Freesciencelessons 6 лет назад
Possibly. It would make a good 4-5 mark question.
@mariya8953
@mariya8953 6 лет назад
Freesciencelessons Okay thank you
@taehyungsmuggledmahearteut6779
mariyasuga FIRST LOVE🤭❤️
@sitnerpeihcra2440
@sitnerpeihcra2440 3 года назад
He is a hero
@jumanahalawfi9214
@jumanahalawfi9214 5 лет назад
wow!, thanks!
@williamhogan9801
@williamhogan9801 6 лет назад
Is the the same or similar to the IGCSE course?
@ceylantoma
@ceylantoma 8 месяцев назад
urthebest!!🤩
@oliviaoneillx
@oliviaoneillx 6 лет назад
so does it start by water evaporating off the plant into the air
@flickz9500
@flickz9500 2 месяца назад
what about translocation
@ghonwy1683
@ghonwy1683 6 лет назад
Just an extra point on factors that affect transpiration: humidity, because if it's more humid there is a lower concentration gradient for diffusion.
@cv00000
@cv00000 6 лет назад
He already mentioned dry conditions
@itznikichand8830
@itznikichand8830 Год назад
wait I don’t understand the stomata part because when I watched a video it says that when the stomata opens for exchange the plant evaporates water through the xylem and each time water evaporates there is a new water particle being. Over up the transpiration stream to replace the water molecule that has been evaporated ?
@hotboxedCS
@hotboxedCS 4 года назад
Any1 here in 2020?
@saliha5638
@saliha5638 3 года назад
hopefully thisll help me pass my mock 🙏🏻
@garyonpoint6484
@garyonpoint6484 3 года назад
How did it go?
@rarafist5569
@rarafist5569 2 года назад
This guy sounds like a top bloke
@chanelle5939
@chanelle5939 4 года назад
I was never taught this topic in school wtf?
@alberthank7388
@alberthank7388 3 года назад
it be like that sometimes y'know
@arakurd6351
@arakurd6351 3 года назад
@@alberthank7388 fr some teachers wack
@jackjackson2764
@jackjackson2764 4 года назад
My guy I have a bio test soon that I’m freaking out but I’m fine now
@Freesciencelessons
@Freesciencelessons 4 года назад
Good. Don't panic. You'll be ok.
@jackjackson2764
@jackjackson2764 4 года назад
Thank you I’ve done it and I think it went well
@zcontrols-gamesanimeandmor9249
@zcontrols-gamesanimeandmor9249 4 года назад
@@jackjackson2764 what did u get?
@queenelizabethiv7012
@queenelizabethiv7012 3 года назад
@@jackjackson2764 what result u get?
@mariamali2060
@mariamali2060 3 года назад
Why does he never sit down😭 you deserve a break too sir
@NabeehaSuri
@NabeehaSuri 4 года назад
Great video! I have a question. You said that the rate of transpiration increases in higher temperatures but then you said that in hot conditions, the stomata close to reduce water loss by transpiration. How does the rate of transpiration increase if the stomata are closed?
@Freesciencelessons
@Freesciencelessons 4 года назад
Plants cannot photosynthesise if their stomata are closed so there is a time when the temperature increases before the stomata close. During this time, there is a high rate of water loss by transpiration. However, once the stomata close, the rate of water loss falls.
@NabeehaSuri
@NabeehaSuri 4 года назад
@@Freesciencelessons Thank you!
@EducatorSharmin
@EducatorSharmin 6 лет назад
*** Outline how abscisic acid functions to stimulate the closure of stomata. Could you explain a little bit?
@hoonlvr7213
@hoonlvr7213 3 года назад
oh the memories💔
@wraith7460
@wraith7460 4 года назад
Your the best
@zehraonyoutube
@zehraonyoutube 2 года назад
ur the best
@omcintyree
@omcintyree Год назад
POV it’s T-13 hours until your gcse
@at3036
@at3036 6 лет назад
for the GCSE, will we need to know it as palisade mesophyll or just as palisade?
@dsddestroyer6003
@dsddestroyer6003 6 лет назад
You can just say mesophyll or spongy mesophyll but I would recommend looking at a mark scheme to clarify.
@mouseyland
@mouseyland 2 года назад
nice video really helpful
@JJC013
@JJC013 5 лет назад
3 hours to go!!
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