GCSE Biology - What is DNA? (Structure and Function of DNA) #65
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- Опубліковано 7 бер 2020
- This video covers:
- The structure of DNA
- What nucleotides are
- Complementary base pairing
- How genes code for proteins
- The functions of proteins
Exam board specific info: (probably useful for everyone though)
AQA - Separate/triple science only
IGCSE Edexcel - Separate/triple science and higher tier only
Edexcel - Everything is relevant to your course!
OCR 21st Century - Separate/triple science and higher tier only
OCR Gateway - Separate/triple science only
Maths Playlist:
• GCSE Maths (9-1)
GCSE Chemistry playlist:
• GCSE Chemistry - Atoms...
GCSE Biology Playlist:
• Video
GCSE Physics Playlist:
• Video
You’re literally so underrated
For you to drop such a comment your education level is underrated!
@@xlayy_000 wdym?
@@xlayy_000 bruh i think u might have misunderstood what she said. She meant that this cannel is good but hasn’t got as much fame and attention as it deserved lol
@@xlayy_000 so your education level is ‘underrated’ fir not knowing what she means 😅
@@noobynerds2149 Yeah i knew it later i found it out later thats why i didnt reply when she said "wdym?"
To remember complementary bases, think of the letters made of straight lines (A-T) and curved lines separately (C-G).
or apples in the tree and cars in the garage
or AT-AT for AT and crossguard lightsaber for CG
Write it on your hand
I use All Thieves Get Caught
@N. Thanks so much , I was so confused how you're doin good
Wow. This is the only time I actually understood DNA. Thank you for your effort in these videos!
Happy to held Jenan! 👍
You have no idea how incredibly helpful your videos are. I’ve gone from double award science to triple science for a level and needed to understand the triple science DNA from GCSE. I watched this video and made loads of note which allowed me to understand this within an hour. Thank you so so much. 😊
If you’d like to practise what's covered in this video, check out the lesson on the Cognito platform - cognitoedu.org/coursesubtopic/b2-gcse-aqa-h-t_8.03. The platform’s totally free, and has been built to make learning and revision as 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 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
P
i was so confused by this to start with but now i understand it fully :) thankyou so much!
Yay, glad the video helped Scarlett!
@@Cognitoedu eeeeeeèeeèèèeeeèèeèèeèèèèèè&
excellent! Studying my book and watching your video to repeat - it's helping a ton!
I’m a freshman in high school you literally just saved my life thank you so much I was so confused you can really see the effort that you put into these videos❤❤❤
Thank you!! You're a lifesaver! I've been searching around trying to find better instructions of this material than what was in my college course. Having the visual representation makes all the difference!
your videos are sooo helpful, thanks :)
My teacher shows us these videos! They are so amazing 🤩
have you covered the entire gcse spec of aqa or do you still have gaps as i am going to go through all of them as they are really useful
Hi, there are still some videos to come so make sure you grab a copy of your specification to tick off the topics that the videos have covered. That way you can keep track of everything you’ll need know more easily :)
THANK YOU SO MUCH! I never thought i would ever understand all these things in one video! I finally understand something about DNA and proteins, thanks!!
Never been this early to anything but I’m glad I did 😁
These videos really help me out, thank you so much, you make this difficult subject so much easier to understand, thank you!
Love ur vids! You help me understand these topics so easily!
Bless you, you really have a gift of clarity. Thank you for your lessons!
You will be the reason i pass my biology exam tomorrow...✌️
Did you past bro?
Thank you very much for this wonderful explanation. It is possible to take the power point for an explanation of what is needed
I would love to see more videos on molecular biology!! Please!!
litterally would die for you man, thank you so much!
@technosupport
Hey guys, I teach gcse aqa bio content on my channel so I'd love it if u guys checked it out n clicked the sub button! Thank you so much 👍
Thank you so much for making this video! I am so glad I clicked on it. I watched many videos and neither made sense
Got my paper 2 tmr, boutta secure that grade 8 thanks to you Cognito 🤝
Love ur videos!!Their so helpful
This helped me so much! Thank you!
Glad it was useful fleur! 😊
I LOVE REVISING NOW ! THANKS TO YOU LEGEND .
That's was so helpful, i could finally understand, thanks💗🌸!
Ngl this channel is a life saver I am in my first year of ig and I have exams coming up soon I am gratefull
Way better than an actual teacher teaching it to you in the classroom.!
I personally loved the way of your teaching. You stated everything very clearly and repeated no sentences. On UA-cam where good people like you who instead of wasting younsters time are sharing knowledge and saving their lives have less subscribers while on the other hand people who make useless content have so many views and subscribers.
We think that those people are a source of entertainment while they are just earning by ruining our time. I hope that people get aware of what they are doing.
This legend should be granted a Nobel
Indeed very Lucid explanation,
Very beneficial.
thank you. i wasnt bothered to read from my cgp book so this was helpful
CGP is shite mate, it only sells because of the cover.
Thankyou so much it's really a nice video my mind is now open I've understood everything now
Thank you Sir🙏. Its so well explained... that too simply
Soo good this is so useful
I just had to subscribe
Thank you for uploading such helpful video's 😊
Glad I found your channel
You made it so easy to understand! Thank you!
Ah thanks Tracy, glad the video helped! 👍
you just explained everything in 6 min than it took my teacher in a whole month
guys also remember for edexcel they may ask you that the sugar phosphate backbone is connected through weak hydrogen bonds
I learn a lot
This was amazing thank you very much
Glad you enjoyed it! 😊
Love the new intro!!
someone commented a way to remember the base pairings 'tigers are great cats'
T-A G-C
All Thieves Get Caught. (A-T) (G-C)
@@user-jq3qt8no7h but they dont🥲
@@user-jq3qt8no7h Also it can be like Apple is found on Tree(A-T). Car in a garage (C-G)
He doesn't skeep any stape,I love this.
Yes, he explains the most difficult concepts so simply, so that everyone has the chance to understand, and that is the sign of a genius!
awesome! thank you!
Ur extremely helpful
are you guys ever thinking of making more geographic or hisstory videos
Thank you very much !!!
thank you so much.
amazing work
i love this guy thanku
For remembering complimentary bases, you can remember this short mnemonic: AT(Always Together) & GC(Good Couple) 😁hope this helps :p
Really helped❤
@@naipindikaiya769 glad to help :)
Good effort
dude i pass my exams because of u
I can only understand his videos but not other videos, and most mandatory thing about this channel is that I can remember what he said for a long era 😭
Thank fuck this literally covered everything in my homework absolute legend
I'm doing my last IGCSE Biology exam tomorrow.
R u doing IGCSE or is this homework for some other syllabus?
Life saviour 🔥
Your videos kinda osmosis type. Have any link with that channel?
Where is your website??
Ur just amazing
I love you cognito 😭
Thank you
THANK YOUU
thank you
Nice ty
How I remember base pairs: AT is a word so they are together, GC are remaining meaning they are together
How does this have only 12 likes 😬
ikr so not fair
@@faithpraise9883 it has 900 now mate
@@zenthous9568 it has 1.1K now mate
Good videos Amadeus!
But the DNA is right-sided Alpha Helixes, but not the left-sided, as we see in the images. 🙃
Cartilage, is a different story, thought (it's left-handed)
Came from online school - alvin
You are not alone
@@Mr-Cough Ben?
I don't like ben 10
Cannot believe how convenient the whole this was than the book itself
Where can I buy DNA?
masha'Allah
cool vidoe
Im 9 in primary school(im a science nerd) and I understand everything.
keep it up, keep watching videos and learning about more advanced concepts, it will help you in the future when it is time to take these exams, and you won’t have to worry that much since you already know everything, you can just sit back and relax and revise a little bit!
Why are amino acids called their way if the are made of a bunch if bases?
The way u teach is so cute
I love u Cognito
4:15
where are all the comments
u found them
i walk a lonely road
The only one that I have ever known
Don't know where it goes
But it's home to me, and I walk alone
I walk this empty street
On the Boulevard of Broken Dreams
Where the city sleeps
And I'm the only one, and I walk alone
I walk alone, I walk alone
I walk alone, I walk a-
My shadow's the only one that walks beside me
My shallow heart's the only thing that's beating
Sometimes, I wish someone out there will find me
'Til then, I walk alone
Ah-ah, ah-ah, ah-ah, ah-ah
Ah-ah, ah-ah, ah-ah
I'm walking down the line
That divides me somewhere in my mind
On the borderline
Of the edge, and where I walk alone
I thought that DNA makes u know who are your real parents-
I have my biology exam in 4 hours 😔and I only started studying now
Same 😭
WHAAAT!!1 HOW DID IT GO OMG
4 hours,not even 4 days but 4 hours. You are a true procrastinator.
How did it go?
😎 cool
massive lore drop
All The Gay Cousins
🎉❤
+
noice
wer ist auch wegen bio 9 klasse vom mwg hier lol
Pro tip play in 1.75x
A BIG THANK YOU! Now I understand what is going ON. Unfortunately I always studied physics and any kind of electronic system and always fended off the biological studies. Now I realise that if there are four unique nucleotides symbolized as A, G, C, and T, which stand for the four bases-adenine, guanine, cytosine, and thymine and next the many combinations that follow - I can compare this to binary logic and how, whichever super processoror you may have, is simply and always working with a zero (of) or one (one meaning 5 volts in the case of a computer) and the various ways of using this 0 or 1 logic achieves all that we see being achieved by computers today. So as I understand it, this is Biological Logic. Hence I think that digital logic has distracted mankind for many many years. Just imagine what can be achieved if all people developing digital logic were to change to probing into biology more deeply to explore and undersand the complex operating system and method of operation of human biological logic. Let us face it. If it is as straight foward as this, we are most definiley biologically programmed from begining to end.
Suiiiiii
Why is this so complicated
I need help my mum is abusive
what help
Am too late
But bro u still need help?
What help?
Thank you