GCSE Biology Revision "Photosynthesis"

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GCSE workbooks www.amazon.co.uk/Dr-Shaun-Don...
School licenses from 40p per copy www.freesciencelessons.co.uk/...
In this video, we look at photosynthesis. We start by looking at the word equation and then the formulas of all the molecules involved. We then explore the idea of limiting factors.
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.
Image credits:
White dead nettle By Phil Sellens from East Sussex - White Dead-nettle (Lamium album), CC BY 2.0, commons.wikimedia.org/w/index...
Seedling By Toranks - Own work, CC BY-SA 3.0, commons.wikimedia.org/w/index...
Lilac plant leaves Public Domain, commons.wikimedia.org/w/index...
Variegated leaf By Taken by Fanghong - Own work, CC BY-SA 3.0, commons.wikimedia.org/w/index...
Music credit:
Deliberate Thought by Kevin MacLeod is licensed under a Creative Commons Attribution licence (creativecommons.org/licenses/...)
Source: incompetech.com/music/royalty-...
Artist: incompetech.com/

Опубликовано:

10 окт 2017

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Комментарии : 439

@jonathanmanson5806 5 лет назад

Love how this guy has become a celeb by saving everyone’s GCSEs

@moonlightmando7163 3 года назад

At this point everyone knows this man.

@infinity_sh4816 3 года назад

in the uk at least xd

@turkeydinosaur5615 3 года назад

I hated this man throughout the year, but as it has come to the end n me watching like all of them he’s actually like taught me all the stuff. So I longer despise him. But have respect

@trickypk 2 года назад

He’s underrated

@Three_dots_illutates 2 года назад

fr i have a bio test in like 10 minutes

@sylviasharp4839 4 года назад

Your back must hurt from carrying the grades of every single student

@makariousaziz3565 3 года назад

Exactly how is this guy still standing up straight?

@phase0400 3 года назад

@@makariousaziz3565 Because the grades are falling off his back. Hes too worthy, this guy is shaking the grades off and giving it back to us. What a legend.

@zasproductions9258 3 года назад

Ikr

@bigboi5763 2 года назад

Faxx

@user-pp4pf8wh4r 2 года назад

Literally better than all my science teachers combined

@SebGCM Год назад

This man teaches whole topics in 5 minutes while teachers take a whole hour to teach this. WHAT A BEAST! #THEGOAT

@lioncamel7820 10 месяцев назад

so true

@hmo1195 6 лет назад

Hi, didn't get the chance to thank you for saving my science gcse last year. I got B's and C's after getting E's in my mocks. Overall C in science gcse. Got into the college and course I want! If ur in year 11 i recommend just taking notes in a book as u watch the vid, unfortunately i started revising 1 week before my gcses so he came in clutch ;) good luck with ur gcses

@anonymousyouth7479 6 лет назад

would you advise flashcards? that's currently what i'm doing.. i'm in year 11 and revising early as well as my mocks in 2 weeks. What would you recommend?

@AC-nu9qe 6 лет назад

You just motivated me after getting e's for my mocks

@waterkidfirekid5796 6 лет назад

H Mo well done

@juwy0116 6 лет назад

H Mo yikes, my exam is in 10 days. Wish I started revising earlier.

@arslankhan2134 6 лет назад

bruh, exams are tomorrow and im cramming and aiming for a 9 lol

@rioalvarez2427 5 лет назад

got test tomorrow. Thanks for allowing me not to fail (hopefully)

@memyselfandi7782 4 года назад

Did you pass?

@damirmukhaev2205 4 года назад

Rio Alvarez ayo have u passed

@aaxhrl 4 года назад

same even i have test in less than 3 hours

@Inukia 3 года назад

@@aaxhrl AIZEN

@georgy7853 3 года назад

@@damirmukhaev2205 did you pass?

@mahamedaden6467 3 года назад

Just imagine if he was teaching maths too!

@Matthew-wv8eo 3 года назад

all schools would shut down , they'll be useless

@valourz1398 3 года назад

His brother probably does

@Lia.Baliarsingh 3 года назад

@@Matthew-wv8eo lmao frrr

@doge6530 3 года назад

The world will be saved

@kenzahcarstairs5417 3 года назад

life would be more easier

@-...480 6 месяцев назад

2024 COME ON WHERE U AT SHOULD BE STUDYING RN!

@siama5293 5 месяцев назад

I am

@meow37586 3 месяца назад

I'm trying but I'm so not motivated like 36 days until our first exam and I've got so much revision omg like idk where to start

@sbeanz1066 2 года назад

I have this exam tomorrow thank you for all the help, you've gotten me through my GCSEs

@perrytheplatypus6353 2 года назад

Any tips on remembering this stuff got mine tomorrow as well

@Haha_27 2 года назад

Same

@profesor6014 2 года назад

@@perrytheplatypus6353 everyone got bio tmr )) yh gl all of us here for the gcses this year

@RJ-tl4jb 2 года назад

Same

@hadlav5840 2 года назад

same here😩 good luck

@Whey20 6 лет назад

i am so glad this resource is available for the 9-1 gcse, you may have saved my life

@promise.4162 6 лет назад

he probs has saved our lives, I'm cramming his videos before tomorrow

@mollyd4349 5 лет назад

Jimin very no fun same ive watched about 20💀

@legoraptor1289 3 года назад

The people who disliked this video are probably the teachers who have taught the topic worse than this guy

@leah-fs1mo 6 лет назад

y'all are saving me rn

@LutherBottrill 6 лет назад

leah mocks eh

@andrewsulaiman5639 5 лет назад

leah i subbed

@mohammedmufreh1693 6 лет назад

you deserve 1 million subscriber's

@alizaye9850 4 года назад

He has more than that

@rever8714 Год назад

i have a combined science (higher) mock exam tomorrow, and this is helping so much, and i would just like to say thank you sir for being such an amazing teacher, i will not fail thanks to this. Once again, THANK YOU. you don’t understand the amount of people you’re saving and helping right now.

@h.n2826 2 года назад

I’ve got my biology exam tomorrow 😭the day has finally come. Good luck to everyone out there!

@totaldoofus69 3 года назад

Finally my GCSEs are tomorrow so I must say thank you to this national treasure. Helped me more than any science teacher ever could.

@8plex440 6 лет назад

mocks in 2 days starting revision

@SJ-vo3di 3 года назад

well in

@Ummm_hi_bye 5 лет назад

This guy is a better teacher than my own

@guangmingsong8953 5 лет назад

yup, my teacher just reads off the board

@miashaw1599 5 лет назад

Same,I've learnt more from this guy in 5 mins than I have for thr past 12 years of education

@freyaprest4072 3 года назад

Love how he teaches us what our teachers have failed to do

@jillmoony5015 Год назад

This man being the reason half of the population pass science

@marwasadat-bc9jw Месяц назад

this guy has become a celeb by saving everyone’s GCSEs

@Akshay-wr8ft 5 лет назад

Thanks, I got full marks on my end of topic exam because of this!!!

@AAA-hc1ec Год назад

tomorrow:(((

@Quazex Год назад

good luck man

@ryou6453 Год назад

@scar3770 Год назад

We got thisss!!😊

@lowkeygaming15-hv6wz Год назад

Good luck guys

@hebasheikhova4363 6 лет назад

Thanks for saving all gcse students, we love youuu

@sjdjfksl 6 лет назад

guy is my g, and he dont even know it

@ISTHISALREADYTAKEN 4 года назад

i love this dudes videos its short simple and straight to the point

@kane1253 6 лет назад

Thank you so much for these videos they are saving my science GCSEs

@andrewsulaiman5639 5 лет назад

Ive only just found out about this guy and my bio gcse exam is in 4 days, wish me luck

@tongai392 5 лет назад

Good luck

@hannah-zx8rn 6 лет назад

Exam starts later, gonna watch as many of your biology vids as I can!!

@watfordboi2611 Год назад

True GOAT- 5 mins in what takes 1 hour for most 🎉

@Name-hz2eb 3 года назад

The respect I have for you go up and up everyday sir. I can’t even get this much knowledge through a payed private tutor. You are an absolute absolute legend and we don’t deserve to have u. Thanks you sooo much

@loop7280 11 месяцев назад

got a 9 in all my sciences cos of this man I would watch every single vid and pause to write out notes thanks for everything class of 2023 out see you when I'm doing my Alvls

@FusiYT Год назад

Ahhh biology today! HELP MEEEE LORDDDD. Wish me luck please. Best of luck everyone

@chloeownsworth3913 4 года назад

This man officially just saved my GCSE's

@mhoonchi 3 года назад

in my school, there was a petition to get him to become our teacher... sadly it didn’t happen 😂

@debbiecurtis4021 5 месяцев назад

You are the only hope for my son passing science. If he gets a pass mark, I'm sending you a gift.

@bastiatintheandes4958 4 года назад

At last I hit a channel with accurate explanations and PROPER ENGLISH PRONUNCIATION. Thaaaaaaanks!!!!

@AlexanderTheEvenGreater 4 месяца назад

Yes. Nowadays it would be an annoying American-sounding AI bot. ;-)

@suspectedend2304 Год назад

This guy helped me get a 9 in my bio mocks

@user-qi1jf7io9f 11 месяцев назад

Sameeee even in physics imagineeeeeeeeeeeeeeeee LEgenddddddddddddddddddddddddddd

@kinghumata2863 9 месяцев назад

You just got a sub cause I am in y9 and struggling in science so this helps me quite a bit. Science isn't my best subject but I in set 1 and I want to keep it that way. for some reason i cant always find the motivation to get better although deep down I really do want to. If anyone has any tips or stories anything would really help me figure out what to do because I really stuck and whether I like it or not, one day I am gonna regret not revising hard enough and wishing a redo all over again. It seems stupid to say so and not do anything but I just don't know how to start. Pls reply someone!!!

@rigjuice734 8 месяцев назад

You have a great mindset, don't go too hard on revising in year 9. But in Year 10 revise alot, to get ahead of everyone so you can have a great future

@megganwilliam5453 6 лет назад

This is the best when you know the information and it's just repeated in your brain 👏🏽✨🙏🏾💕🇱🇨

@otisinnes318 6 лет назад

rly seriously thank u so much for these Shaun

@yu5ufff-45 9 месяцев назад

We dont need teachers. We need you. who else is here for year 11 mocks 😂

@ZainZahid8880 9 месяцев назад

@princess5025 6 лет назад

You acctually make me understand science

@karsondhakal8139 Год назад

Freesciencelessons thank you so much for the videos. I got 7s for separate science and this wouldn’t have happened without your help. I am looking forward to seeing more of your a level content 👍🏻👍🏻

@Freesciencelessons Год назад

Thanks for the comment and congratulations on your grades. I'm happy to have helped.

@karsondhakal8139 Год назад

@@Freesciencelessons Your welcome! Also I took Chemistry and Biology for A-levels. Biology is AQA and chemistry is edexcel. Does your A-level videos complement the following exam boards I mentioned?

@abdussubhanmiah8900 4 года назад

Can I give this guy a hug ?

@hannahpaul3256 4 года назад

Thankyou so much, I got a 7 in my mocks from just watching Your videos😊

@reubeng8845 3 года назад

how did you do in gsce

@edlikestea6726 4 года назад

I’m here because of corona virus =/

@Plugforproducts 4 года назад

same

@libbybird3857 3 года назад

I'm still here because of CoronaVirus =/

@a24z78 5 лет назад

exam tommorow this guy is a saviour

@PavLad123 5 лет назад

You deserve about 100 million subs.

@user-ku1um8ey1m 3 месяца назад

THANK YOU ! you are saving my life .

@bigmanc3217 5 лет назад

Ive got an exam tommorow :(

@edna288 3 года назад

Same

@sara-qb8mt 3 года назад

same

@thediamondnetherstar2155 5 лет назад

Thanks,really helping a lot of people

@tjnyland1 7 месяцев назад

thank so sir, saving everyones gcses

@potatopotato5632 11 месяцев назад

Love him so much,I've spent hours and hours and days and months and YEARS learning stuff and didn't get it and I randomly found his channel and I was saved,3-7 min videos clearing every thing.Oh my God,LITERAL LEGEND

@tomarboleda1680 5 лет назад

once a legend always a legend...

@tristanelliott9545 Год назад

I absolutely love you. You’re really helping me catch up despite my low attendance in previous years. Thank you🫶

@hughparkes4151 6 лет назад

the greatest video ever. this is better than ali a :D

@lunalovegood8155 2 месяца назад

Biology today!! Tysm for this!

@KingDragon777 5 лет назад

Mocks tommorow and GCSEs next year, so il probably be seeing u next year too

@kaiphillips8415 6 лет назад

Thanks so much, I’ve been clueless on this for ages and you’ve cleared this up :) u deserve more subscribers

@Isa-ue9dl 5 лет назад

Sir you are a legend

@seanweale4476 5 лет назад

mocks tomorrow wish me luck

@bloxy3142 2 года назад

thanks! got this in my exam tommorow

@Lwtonlyangel 3 года назад

Sir you honestly are a legend and are helping everyone so much. I swear the only thing my teacher taught me from this vid was the photosynthesis equation

@unicornvggghhu4285 6 лет назад

Thankyou you are amazing at explaining, you are helping a lot of people with what you do

@whocares3228 6 лет назад

Abigail Thomson hey 👋🏾

@celinefernandes30 6 лет назад

Thank you for helping me with my term

@hozyn967 6 лет назад

Great vid! But just one thing, you actually are required to know the balanced equation for photosynthesis. I did the biology paper 1 today (combined) and it came up.

@ehhaleracing6355 Год назад

I have an exam in 2 hours, this is really helping

@hamzachaudhary6103 4 года назад

You are amzing when we have lockdown sean

@ratifer7576 5 лет назад

how does he fit so much useful info into such short vidoes

@ama5179 5 лет назад

Good job...Keep up the good work

@caslovss 2 года назад

got this exam today, thanks for the good grades

@ElZa500 6 лет назад

I have a test tomorrow about this.... I'm dead.

@saltypear7397 6 лет назад

You too? Same, good luck on your test

@nicolett388 6 лет назад

I’m in year 8 but I have a test on it soon!! :(

@jiyabhuchar8621 6 лет назад

i am in year 10 and i have a test on it tomorrow

@100ksubswithoutanysubs5 6 лет назад

same

@domplaysminecraft1 6 лет назад

im yr11 and have mocks my current grade is an A (grade 7)

@chocolatecream7234 5 лет назад

I legit revise from those videos

@leoprivate9987 5 лет назад

i think he explain much more better than the teachers in sc

@Naspirated 6 лет назад

Such a clear explanation, no fiddling around the subject like other videos. So helpful you saved my life on many occasions aha

@MealzbyNK 3 года назад

This guy is a legend

@Anti-Social_Socialite 5 лет назад

Im watching this before my mock exam today lol

@miarollinson5868 3 года назад

did u pass 💀

@onlinefootballcoaching575 5 лет назад

This is really good (this channel)

@zahrahrashid3944 Год назад

Thank you sir for the videos. I got 7-7. Now I am doing A level biology !!!

@vidurajaysooriya4143 2 года назад

Hi sir I donated to u via paypal u deserve it!!!

@Freesciencelessons 2 года назад

Thank you. I appreciate it.

@exodus151 2 месяца назад

God bless this man

@banana3156 2 года назад

I’m doing my mocks next month and I’m sooo grateful for your videos :))

@naomiscott2541 6 лет назад

Hello sir, could you please do A-level biology and chemistry videos as well, your videos are very helpful

@justhey4538 2 года назад

Man I just want to hug you

@lilystanley8270 3 года назад

we love you man

@ryhanahmed5849 6 лет назад

do your videos cover all the similar topics between all exam boards meaning that it would likely to exclude some topics from my exam board?

@imani2630 6 лет назад

Ryhan Ahmed I think he focuses on the AQA syllabus but I’m not entirely sure.

@Chxseatlxntic2022 2 месяца назад

If i complete my biology exam without crying tomorrow i thank you

@boredaf8482 2 года назад

i have an end of unit test on bioenergetics tmrw n ill probs get the results after the christmas holidays. ill update n say what i got!!!

@stnchppppp5568 3 года назад

Thanks so much. very helpful video

@KingPawin 10 месяцев назад

Hi Shawn, may I know what the turning point of the line is called? 4:35

@irisshearman3533 4 года назад

you deserve 1m subs

@adamroshdy1363 5 лет назад

Thank you so much, i have a science exam tomorrow.....

@Oscar-xw4pk 3 года назад

Cheers mate 1 minute till the exam

@callmesummon 10 месяцев назад

My y11 mocks aren’t for a couple months yet but I have a test tomorrow so I’m binging these 😋

@Radiant100 3 года назад

Hey Last minute gang. Good Luck!

@imma_eatjin 3 года назад

if anyone wants the balanced equation it’s: 6CO(tiny 2) + 6H(tiny 2)O -> C(tiny 6)H(tiny 12)O(tiny 6) + 6O(tiny 2)

@Abigail-lg7mg 3 года назад

if you hold down the number it should give you the small number like ² or ⁵

@anonymousog9608 6 лет назад

When carbon dioxide and light intensity are the limiting factors, are they directly proportional to the rate of photosynthesis?

@ethereal3885 Год назад

i have an exam in like 2hrs and I'm binge watching all his videos

@camlwelsh 6 лет назад

im in year seven (yeah i know) and im revising for my end of years and these videos genuinely saved me

@Radiant100 3 года назад

I'm in Year 9 I think Same grade?

@gracet2272 6 лет назад

Is there a biology paper 2 section? I can't seem to find it. Many thanks.

@Freesciencelessons 6 лет назад

Yes but there are only five videos so far. Seven more will be uploaded this weekend.