A Level Biology - Carbohydrates: Monosaccharides & Disaccharides

*** WHAT'S COVERED ***
1. What carbohydrates are
* The elements they contain (Carbon, Hydrogen, Oxygen) and their general formula.
* The key functions of carbohydrates in living organisms, including energy supply, energy storage, structural roles, cellular recognition, and as building blocks for other molecules.
* The three main types: monosaccharides, disaccharides, and polysaccharides.
2. Monosaccharides (simple sugars)
* Their general formula and how they are categorised based on carbon atoms (pentoses and hexoses).
* Examples like ribose, deoxyribose, glucose, fructose, and galactose.
* A detailed look at glucose, including alpha and beta forms, how carbons are numbered, its solubility, and why it's rich in energy.
3. Disaccharides
* How they are formed from two monosaccharides via condensation reactions, creating glycosidic bonds and releasing water.
* Examples including maltose (glucose + glucose), sucrose (glucose + fructose), and lactose (glucose + galactose).
* How hydrolysis reactions break down disaccharides by adding water to break the glycosidic bond.

*** CHAPTERS ***
0:00 Introduction
0:29 What Carbohydrates Are
1:11 Functions of Carbohydrates
2:17 Types of Carbohydrates
2:39 What Monosaccharides Are
3:13 Glucose (Alpha & Beta)
3:56 Key Features of Glucose
4:29 Disaccharides & Condensation Reactions
5:15 Disaccharides & Hydrolysis Reactions

*** PLAYLISTS ***

#Alevel #Biology #study

[straightupsubstrate]

This channel gives me so much nostalgia man. I was able to get an A in my GCSE biology just because of this channel. Binge watching all of the videos a few months before the exams, can't forget those days. Keep up the good work, Cognito ❤

[IleriAdeoye]

nobody understands how happy this makes me...favourite revision page for GCSEs making a level vids while I'm doing my a levels (year 12)

[evelynsusanx]

PLEASEEE MORE ALEVEL VIDEOSS!!! I BEG OF YOU cognito saved me for gcses I can't live without the videos for alevels!!

[Zahra-yifg]

How long until all the A-level videos would be done?

[sumrasiddiqi]

This is really useful and would be great if all topics are put up soon. Thank you

[ryolo-jc]

Thank you so much for posting AS Level content. Really appreciate it. Looking forward to more like this

[FlippedBlade]

Lets goo, i badly want him to spend more time on A levels 😢

[YusufUddin-------]

cognito in 2 words---> the goat

like if u agree

[NathanielJ]

My friend...i have waited a long time for you upload more content faster since i have exams on Thursday for AS level bio mcq

[NadaGdeisat-noyg]

Id really appreciate it if this channel started pruducing physics a level videos

[Shadow_heartzz]

I have my GCSEs right now and you'revideos have been helping me keep up the high grades. I hope you can finish the A-level course or at least the majority of it by the time I have to sit my A-level exams!

[taranaaaa]

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[quackjosh]

Can you guys continue this series 😭i need it cause im doing biology privately :')

[loveexolivia]

pleaseee do more a level vidss also i kinda miss amadeus' voice

[BlizzarRoblox]

pls upload moreeee!! i love this channel

[zarkadege]

I have my gcses this year, and I've been using this channel and its website obsessively, which has been an insane help. I'm looking to take biology for A-level starting this September, and seeing the the A-level content being uploaded here bit by bit as promised is definitely a good sign. It's a shame to see Amadaeus gone (hope I spelt his name right), but it's cool hearing a new voice for the new content. Looking forward to seeing more in the future :)

[BrightGamerz-jz]

Could you please do a video on Compound Interest (Math), if you don't mind.

[KMystery-hz]

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[vidless]

I don't have biology but here we are...

[evelynsusanx]

PLEASEEE MORE ALEVEL VIDEOSS!!! I BEG OF YOU cognito saved me for gcses I can't live without the videos for alevels!!