A-Level Biology - Perfect Biological Drawings in Paper 3
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- čas přidán 28. 08. 2024
- [D Biology classroom] CAIE A-level biology 9700
How to make plan (low-power) and detailed (high-power) diagrams in Paper 3 that help you to get full marks?
To purchase exam practice questions arranged by topics: tinyurl.com/mr...
For online tutoring sessions or home/group tuition, contact me at daviddelecturer@gmail.com
Visit my FB page : D Biology Classroom.
well this is useful and it is short, thank you!, literally watching it before exam.
All the best !
David de lecturer Thanks💕
*searched for some Amazing AS practical notes
*opened CZcams
*saw this channel
*saw some videos
*Liked, Shared, Downloaded and SUBSCRIBED!!
AWESOME VIDEOS BRUHHH
Thanks man !!!
@@DBiologyClassroom same man, I love you bro !!!! can't wait for more veidos :)))
@@ahmadikram2875 Thank you. Love u too. LOLOL
@@DBiologyClassroom same man, ahmad and i did the same test and failed ;-; i made a video with some questions can you respond to it plz?? here's the link czcams.com/video/dQw4w9WgXcQ/video.html love you bro !!
@@sufidapoofy5085 hey... thanks. but no thanks LOLOL
Love u too, mate
These are always very informative and comprehensive, and give exactly the types of tips that save grades! Thank youuuu!!!
Cheers !
for me that was the most useful study video ever
Thanks for the compliment !
I've never felt more relieved in my life lmao :D
Thanks a lot :")
HAHA glad to hear that. You are welcome !
thank you so much. I have exam this afternoon. you're videos are really useful😢
All the best!
bout to dive in my practical p.3 in 2 hours. thank you! i've liked subed and commented ! wish all as student luck !
All the best !
23 Gregor What paper was it and what did they ask? I have mine tommorrow.
+Emilio López it was the easiest paper ever . variant 1 I guess not sure though . its was serial dilution . identify concentration of vitamen c in an unknown solution . using serial dilution and how many drops of DCPIP to get an estimate . after that there is a bar chart and then the microscope :) there was a magnification math problem and then draw the sample etc. :) good luck and don't stress
23 Gregor Thanks my man. This was paper 31 right?
+Emilio López yup bio cie 9700/31
Hi sir, your vedios are so cool!. Thankyou for all the efforts u had put in all of your vedios...
Sir, can u make vedios on theory part as well, for both AS and AL....
Thankyou veryy much! :)
Cheers ! Yup I will more !
David de lecturer but you didnt :((((
It's 2022 and this was great, thank you 🙏🏽
You are welcome !
YOU'RE A LIFESAVER
Happy that I can help :)
Tomorrow I have Bio AS paper 3..and i am really scared..as my every experiment of bio p3 was bad..i hope i can do it tomorrow..thanks for the video sir
Same
@@sarafatima7562 oh damnnn hahaha..another 4 hours..btw which country are u taking A levels in?Pakistan?
Abbas Arshad yup. Lahore pk
@@sarafatima7562 did u took physics yesterday??goodluck yaar 😫
Abbas Arshad good luck to you too. From where are you appearing
u r the best person ever....just subscribed
cheers ~~
that was very quick....i have my AS bio practical in 4 hours....any tips
DONT GET PANIC. just remember those marking points and it's the same no matter what the question is.
saifullah khan What paper was it and what did they ask? I have mine tommorrow
This is epic, broski
Thanks, you are epic too bruh
Please make videos on physics and chemistry P3 too
I have the exam on wednesdays and these awesome videos are going to save me!!!. Nice vids man. Any tips for the exam??
THanks and good luck !
Tips: it's all about skill, less on biological knowledge. So whatever you see on the paper, even if it is something that you have never done before, remember it's the answering skills (drawing, table making, graphs etc.) that will help you to score.
David de lecturer Thank you m8
This is truly helpful.Thank you
Glad it was helpful!
Thankyou so much 🙂🙂🙂🙂🥺🥺🥺
You are welcome !
i think it is always better to explain with past question and the marked scheme
Hi, the slides being used in paper 3 are not released afterwards unless the exam centre purchases it. So, most of the time only the candidates and the invigilators know how the specimen actually is and why the marking schemes have certain specific points.
LIFE SAVER
Glad that you find it helpful!
thank you so much this video really helped
Thank you !
thank you so much.This was very helpful❤❤
you are welcome!!!
Sir are we supposed to draw root hairs in our plam diagram?
It's ok if you don't
Thank you for this :D
You are welcome !
you're a god send!! god bless you
HAHA thanks !
Thanks a million!!!
You are so welcome ;)
@@DBiologyClassroom man's be replying 3 years later, legend.
Thank you so much bro
You are welcome !
Thanks for the video! :) I had a couple of questions though
If, when drawing the detailed representative cells I can't see much detail inside them, do i just leave them empty? Do i assume the position of the nucleus and draw it even if i can't really see it?I just get really confused with the amount of detail to be drawn. My book showed some really detailed drawings, as examples, but then again I never saw the slide as clear as the photomicrographs that were used for the drawings in the book.
Also we've always been warned about crossing the lines or the space provided. I've even heard some teachers say not to cross under the marks, but I've noticed alot of the time, for the detailed drawings, we're given the whole page to draw, but the marks [5] for example are given to the side, like halfway. I know this is a silly question, but I can use the entire page for my drawing right? Not just stick to where the the marks are right?
Is there an easy way to identify or differentiate between a phloem sieve tube element and a companion cell under the microscope? I've seen a paper where we were asked to draw some stuff, along with companion cells, so again, what kind of detail should i draw? will i draw for those what i'm seeing or what i know should be there?
Please help me asap if you can, my exam is tomorrow. Thank you so much in advance.
1. If it's a microscope slide, the details are not so clear but you can somehow see them, draw it. If totally cant see dont assume they are there. If it is a photomicrograph on the exam paper, draw ONLY what you see, draw exactly what is on the paper.
2. As you as your drawings are not touching the words printed on the paper it is okay.
3. C.c are smaller than STE. And most of the time, you can see one or two perforated sieve plate on the slide, draw those so your drawing is more distinguishable.
Good luck for your exam !
Thank you so so much for the very quick reply :)
cheers !
Thanks!! -2024 me
You are welcome
- 2024 me too
THANK YOU SO MUCH
You are welcome !
YOUR EXPLANATION ARE DAMN sirr🍀💜 🔥.. SIMPLY SUPERB ..Sir,could you make videos on genetic engineering , evolution and biodiversity! As my exams a week later for theory !
MY BIO PRACTICAL 33 are tomo
Much relieved after watching your videos ☺️
Hey, all the best !
Hey!!Great video
Can you explain how to calculate the simplest whole no ratio?
Mark scheme states the following
Large whole no to smaller whole no, to the lowest common denominator
Divide the larger number with the smaller number. But if the number have decimals you need to convert them to whole number. for example A is 4.5, B is 3. Divide both by 3 and u get a ratio of 1.5 : 1. But 1.5 is not a whole no., so u can times both of them with 2, and u will get 3:2. This is the simplest whole no. ratio of A and B.
David de lecturer thank you
But whats the lowest common denominator here
Eg if we have 12 and 5
What would be the simplest ratio
Please do mention the lowesr common denominator
Ok, i think i got it
lowest common denominator is 5 in this example
So 12÷5=2.4 and 5÷5=1
So ratio would be 2.4:1
And multiplying it by 5 would give 12:5 which is the simplest ratio.
If im wrong please do tell
netflixtvposts why don’t you use a calculator?
Saif Shehattah I can but I needed to show working and was confused about the lowest common denominator. But I've got it now.
Nice video ,it helped a lot
Thanks !!
Can i do a bit of light outline with flaws for the figure and then making the drawing and erase the light outlines?
You can, but make sure you erase it very very well or else it might look like sketchy line.
@@DBiologyClassroom thank you so much🤍
i have a very important question to ask...if we accidentally pour some of the reagants on the question paper and it makes stains on it...will it lead to mark deduction
it is alright unless the stain makes your answer not readable.
thanks this is very helpful
You're welcome !
for plant cell detailed drawings, should we draw the cell membrane AND cell wall?
The cell membrane of a plant cell is touching the cell wall so you don't have to draw another line for it unless the cell is plasmolysed.
@@DBiologyClassroom thanks! the cell was plasmolysed in my exam 😂
Great Stuff No Doubt, Got My Practical Paper Variant 34 In About 12 Hrs any videos you might wanna upload for the students taking the exam David?
Probably not enough time for another one before your paper.
Anyway, good luck !
any advice apart from being calm and not panicking
Remember the fact that paper 3 is more about the skill in answering questions than your biological knowledge. So it's ok if the practical or the slides are something that you have never done/seen.
Derek Frost Westbrook saifullah khan What paper was it and what did they ask? I have mine tommorrow
Emilio López Even me I'm no better aware of the paper than you
Hi, so for vascular bundles, do we have to use the curly/squiggly brackets and then label it? Are we allowed to just draw on a line on the vascular bundle
It is better to use brackets
Thank u👍👍
You are welcome !
Great content
Thank you !
I just wanted to ask whether the proportional dilution refers to simple/serial dilution?
Hope your early response
Have exams tmrw
Proportional is simple dilution
@@DBiologyClassroom Thank you so much sir for the confirmation. I am having the exams today. Wish me luck!!
@@arunaubeysinghe7798 All the best !!
@@DBiologyClassroom I did my exam. There was a question regarding serial dilution. Thanks for the help you gave me and I really love your videos, simple and sweet and tells all the info we need to know
KEEP MAKING THESE VIDEOS!!!
CHEERS!
@@arunaubeysinghe7798 you are welcome!
very good ;)
Thanks !
Don't use drop shadows on type!
Subscribed!
cheers !
how to find the degree of uncertainty for different equipment?
smallest division divided by 2
Many Thanks
You are welcome
thank you babe
You are welcome !
i have question... what power do u use to obtain the low power diagram?
In the exam, your microscope has 2 objective lenses only: x10 and x40. So x10 is used when making low power drawing.
@@DBiologyClassroom tq sm
helpful
Glad you find it helpful !
Hello , just want to ask what is the meaning of Reject "label within drawn area"? it is keep mentioning in mark scheme
so for labelling cell wall, we should label between two lines or label touching the outermost line?
1. Means you cant write on your drawing.
2. between 2 lines
same with epidermis?
sorry it is mentioned in the video >
but i saw in mark scheme there was one year said that label epidermis at outer two lines or touches outermost line not into area past a single line.... so i am confused
you sure it says "not into area past a single line" ??? that is quite impossible
who else is here for the Edexcel Monday paper?
@@slow9789 ur gAy mOOOOm
@@slow9789 we got this shit
@@Hayat-xj2gialso us: gracefully fuck up
love ur optimism tho, hopefully we wont
@@Hayat-xj2gi we do we do
@@aimrow4202 that's what they all say
I disliked the video because
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then I want to Like it.. :D
lol... okay...
I've got 9700, practical skills 33 this week. Our question never asks for labels in the plan diagram, should i make a few labels? Maybe the obvious ones?
Nope. Don't label when it's not asked.
Also, only label what is asked, as you may lose marks if you label stuff that's not asked
Thank you :)
Sumi Aisha What did they ask? I have mine tommorrow thx
there was this slide of a root , we had to measure graticule units and make some simple cslculations and label the xylem. and there was a food test on 4 different solutions from different parts of the digestive system...
thank you💎😂💝👍
U r welcome !
i have my bio practical AS exam just after 4 hours
saifullah khan i just finished mine !
ME TOO.....yeah it was awesome...now tomorrow is Physics....AGHGHGH
cykaty tiukplos What paper was it and what did they ask? I have mine tommorrow
Hey...can we attempt the WHOLE paper 3 (Question and 2 both) with pencil...not using a pen?
No. On the first page of exam paper : " Write in dark blue or black ink. You may use a pencil for any diagrams, graphs or rough working."
What if I attempt whole paper with pencil?
Maybe they will minus a few marks.. I am not sure.
Ohhh okay...Thanks :)
nic e
Thanks !
@@DBiologyClassroom hey any tips for bio prac 34? How to get the microscope to focus more and quicket or wht to do if it wont??
@@aena5995 Always start with the lowest power lens. Focus it first, place the image in the center, find what you want to see. Then only move on to the next lens. Don't jump to high power straight away.
@@DBiologyClassroom are we allowed to get it focused by the invigilator in cie aslevel ? And sometimes when i move the focus knob it still wont focus in the exam what to do then , also do they reuse the same microscope slide or specimen in every exam so can we draw according to the plan diagrams we remember from the book of leaf,stem,root or onion cell etc. Any other general advice ? For question referring to quantitaive or qualitative are we always supposed to write biochemical tests like benedicts,biuret etc as the answer? And for simple dilutions do we not use 1/10 1/100 1/100 ratios like we do in serial, do we have to use mv=mv formula? Doing the ppr today 😣
@@aena5995 1. No they cant help. 2. They rarely use the same slides for exam, so DO NOT memorise and draw. Just use your knowledge to help identifying structures. 3. Any test with numerical value is quantitative, with non-numerical value observations (eg. colour change) is qualitative, not only the biochemical test. 4. Both dilution can use M1V1=M2V2, it's just that serial dilution you can use ratio to do it without the calculation. That's why we don't need to use the formula.
foll back
asksed asksed asksed asksed
Thankyou alot.
Most welcome!