I was taught that having a lit bunsen next to the agar plate created a convection current in the air which meant that less of the microorganisms in the air settled on the agar culture. Just another point to bare in mind!
that is correct as it also prevents any contamination of microorganisms within the air. but aqa mark schemes tend to stick to the regular 'to kill any unwanted bacteria' phrase :) i'm 2yrs late lmaooo
Thank you so much. i am in year 10 and have a biology mock next week this is very helpful. in 5 minutes i have learnt more than i have in an hour lesson.
Sir, do we need to know how to culture the bacteria as well as the effects of antibiotics or just the effects of antibiotics for this required practical?
Sir so do we only have to memorise the second part of the video about the different antibiotics or do we also have to memorise the first part about preparing the petri dishes?
Help what I’m so confused I remember doing this but I’m in foundation and I’ve found it on a foundation paractce paper unless I’m confused and printed off a high paper again someone help
In a practice paper that I did a question about avoiding contamination came up saying something like name 3 ways to avoid contamination so one of mine was to place the agar plate upside down to stop condensation dripping and contaminating and my teacher said I don’t need to write that?
Camping Camper that doesn’t prevent contamination? It just prevents the colony of bacteria from being disrupted. All you needed to write was to sterilise the inoculation tube, sterilise the work bench and open the Petri dish near the Bunsen flame.
who else got grade 8 and 7 and 6 on science triple cause of this guy he carried my grades W guy THNKSSSS SO MUCHHHHHHHHHHHH I WISH I CAN THANK YOU IN REAL LIFFEEEE
this is gonna be in trilogy too. it's not just synergy students who need this. i got moved down to trilogy bc they said synergy requires a lot more content and that you can get a higher grade when you do trilogy
Hi, I know you said turn the plate upside down when culturing the bacteria, but do we still need to turn it upside down when investigating the effects of disinfectants? I was thinking you should but I’m not sure because the circles could fall off the gel if it is upside down.
I'm confused about what you mean by the 'bacteria have formed a layer on the agar gel' and how it hasn't grown in the inhibition zones because didn't we 'spread it evenly' on it in the first place?
The antibiotic kills the bateria in that zone creating the zone of inhibition. You have the baterica spread out everywhere, place a antiboitic and it will start to kill the bacterial cells around the antibiotic, the area in which the bateria isnt growing/are dead, this is the zone of inhibition
Anyone else watching the ads just so that this guy still makes money
yup
Yup
yup
yup
yup
use me as an ‘i’m bored so i’m scrolling through the comments’ button
How dare you insult science guy!
where is your well deserved ted ed speech?
NCT-zennnn lol
Anyone know how to nominate a teacher for the "best teacher award?"
Lowri Goldby i
no nobody knows, and I just made u open ur device to see this
www.teachingawards.com/entries/
Christopher P.S. no cause he can see you answer in the lock screen...
there is one! it's called the Global Teacher Prize - you can just google it
Watching this a week before my 2024 gcse biology exam
How did you do my brother got all 9s and some 8s but got 7 on english
Congratulations
this... this is the endgame now
i feel ya
Good luck my guy
yikes here we go
word
yup
Good luck in the exam tomorrow guys!
Cheers, you too 😀
Thanks u too
u too my dude, make sure u cover this r.p cuz it didnt come up in 2022
pooing myself fr
hahahahahahhaahahahhahhahaha i didnt revise these at al
Does anyone know the intro music its lowkey a bop
Ben Scann i wish!!
Morning Walk - Jingle Punks
Bio paper 1 next week💀
Watching this at x2 before my exam in 1 hour
He explained this so much more easier than my teacher who spoke for an hour!
at least yall have a chemistry teacher
damn were you also self learning?@@Help.im.being.held.hostage
How else is getting set a load of these during quarantine
My science teacher used this him for cover work. This is possbily the greatest acheivement Ive seen any RUclipsr make.
what a donny, top class lad
2021 gang wya?!
Is this for combined science? - she says 1 day before exams start
nope, big bruh moment
no its for triple science
Gaby gaw he literally said triple
No it’s not
Gaby gaw andddd it was on the exam ): I didn’t watch it because it said triple
THANK YOU DR SHAUN YOU HAVE HELPED SO MANY OF US STUDENTS A GREAT GREAT DEAL!!! WE TRULY APPRECIATE YOUR HARD WORK!!!
2019 gang wya
after watching your video on antibiotic resistance, i subscribed. I will continue watching to help my GCSEs
thank you very much
Just sat biology, thank you for carrying me through it, top don you are
who else up right now to binge watch his videos a day before the exam?
I was taught that having a lit bunsen next to the agar plate created a convection current in the air which meant that less of the microorganisms in the air settled on the agar culture. Just another point to bare in mind!
Bear in mind* A+ student nice
thanks!
that is correct as it also prevents any contamination of microorganisms within the air. but aqa mark schemes tend to stick to the regular 'to kill any unwanted bacteria' phrase :) i'm 2yrs late lmaooo
can't believe the 42 people that have disrespected this king that number best not rise
your videos are life saving thx!!
Japchaejimin uwu IKR
Eeiiihh army
honestly, yes
Thank you so much. i am in year 10 and have a biology mock next week this is very helpful. in 5 minutes i have learnt more than i have in an hour lesson.
You should preview your books on your RUclips channel. I could buy one.
So much better than confusing cgp books
last min revision tuesday14 may 2019
Plez be my dad
bro...
TEST TODAY
This guy makes science seem easy. He is the king of science.
What is a bench? You said it in the required practical. Please reply!
just your work space
Not gonna lie, this man is a gift from god.
Sir, do we need to know how to culture the bacteria as well as the effects of antibiotics or just the effects of antibiotics for this required practical?
It's the whole thing I'm afraid.
@@Freesciencelessons Oh okay. Thank you for the video and reply :).
Shaun is the greatest matrix glitch in my separate science revision
It’s two hours before the exam ffs
This guy really making that coin from me today
who else has their bio exam tomo morning and are just banging this out
Can we get this guy knighted?
Lmao, those ppl reading this are stressing for tomorrow. Last minute revision much 😂 good luck
whoever has this guy as a tutor should be grateful. lol
Anyone done the 2019 practicals paper yet?
Sir so do we only have to memorise the second part of the video about the different antibiotics or do we also have to memorise the first part about preparing the petri dishes?
I think it's better to memorise both parts, because he did mention a few times throughout the video that we could be asked about it in the exam.
Sir you should put this in the combined high playlist as this came up In the 2023 paper bio paper 1
lol this guy deserves so much for how much hes helped the students who are always procrastinating and leaving revision till the last min
fr
Is this practical for combined?
lott X no idea
nope
TRIPLE ONLY
lott X no
i don’t think so?? we’ve never done it, literally hadn’t heard of it until last night so i’m praying it isn’t
Biology Paper 1 today lads InshAllah we getting 9's
Can anyone please tell is this topic on combined trilogy?
its only for triple
No
I mean it literally says on the video it's for triple only 😂
Clutch
Thankyou very much for this. I couldn't did this practical due to lockdown but I have a test in a few weeks
am i the first 2021'er here? got my mock in 3 days haven't done anything lol........... pray for me
It's not 2021 yet...
Legit watching this the day of my exam 😂
This guy has helped me pass my GCSEs, he’s an amazing guy, he should be appreciated, thank you so much ❤️💕
Help what I’m so confused I remember doing this but I’m in foundation and I’ve found it on a foundation paractce paper unless I’m confused and printed off a high paper again someone help
Whos watching this the morning before their biology exam👍🙋♀️🙋♀️
Thank you. I watched a video before this but i just didn’t understand, you make it so simple and easy to understand
Started revising early october hopefully this pays off
Can someone help me plz... is this (culturing microorganisms) topic in edexcel spec . If yes than please help me to find this on the edexcel spec
My g
Good Luck for tomorrow everyone
give this man a Nobel prize
Anyone else here the night before biology paper 1 2019?
anyone know if we need to know the name of the nutrient broth?
No we just need to know that it contains all nutrients etc. needed for the bacteria to grow and divide in
In a practice paper that I did a question about avoiding contamination came up saying something like name 3 ways to avoid contamination so one of mine was to place the agar plate upside down to stop condensation dripping and contaminating and my teacher said I don’t need to write that?
just need to say store upside down, don't say why unless the question asks
Camping Camper that doesn’t prevent contamination? It just prevents the colony of bacteria from being disrupted. All you needed to write was to sterilise the inoculation tube, sterilise the work bench and open the Petri dish near the Bunsen flame.
who else got grade 8 and 7 and 6 on science triple cause of this guy he carried my grades W guy THNKSSSS SO MUCHHHHHHHHHHHH I WISH I CAN THANK YOU IN REAL LIFFEEEE
anyone here the night before lmao
gonna fail but oh wells
i kinda want free science lessons socks now
bro.....
very inspirational man
You are a hero sir
If this comes up today I’ll be happy
absolute legend
biology ez tomorrow
my teacher send this video for homework
Can you make a playlist just for the required practicals?
I would dance to that at a party
It is a bit late but u could have just gone on his website and it says and has a link for the vid
comments that say ‘6 months ago’.. i hate you. that means you revised 6 months in advance and i hate you cuz i WISH I DID
why is there a tag for 3031
midnight night before the exam revision on top
Gcse 2019 today kmn
i appreciate these videos more than anything right now but he really looks like one of my mates and it’s so distracting skdjsjd
good luck for tomorrow guys!!
rip my grades tomorrow
This man is the GOAT at teaching.
You know the example? Where do you measure from, the inside the small circle or the zone of inhibition?
So do you use the first method to complete the second one? Or are they slightly different?
60th comment for the noment
🍇
2020???
this is gonna be in trilogy too. it's not just synergy students who need this. i got moved down to trilogy bc they said synergy requires a lot more content and that you can get a higher grade when you do trilogy
an army that is doing last minute revision like me XD
jiminstolemyjams RMgotthembackforme lool. the test was acc easy af. i used to get 5's in mocks but i think i might get a 7 on this
ᄋᄋᄋ so did u get a 7
@@sadam693 its only if you're doing triple on the AQA combined triology. Combined students won't get this
Splatoon 2 News! I know🙄, I do triple too.
First exam tomorrow, thanks for everything king
Hi, I know you said turn the plate upside down when culturing the bacteria, but do we still need to turn it upside down when investigating the effects of disinfectants? I was thinking you should but I’m not sure because the circles could fall off the gel if it is upside down.
Thanks broski 🙂
I'm confused about what you mean by the 'bacteria have formed a layer on the agar gel' and how it hasn't grown in the inhibition zones because didn't we 'spread it evenly' on it in the first place?
The antibiotic kills the bateria in that zone creating the zone of inhibition.
You have the baterica spread out everywhere, place a antiboitic and it will start to kill the bacterial cells around the antibiotic, the area in which the bateria isnt growing/are dead, this is the zone of inhibition
would you do the same process with antiseptic?
Yes you would use filter paper discs soaked in antiseptic.
0:58 Thankyou so much for your videos
Who is here from stupid teams???
Hero
my exam tomorrow, hopefully i pass!
i got my bio mocks tomorrow😭
i got my bio exam in 3 days lol
@@ayaanchaudhary8754 tomorrow now...
@@prxcioussx today now lol
Ibsr this guy was sent from heaven.