A-level Biology POLYSACCHARIDES Biological Molecules-Learn these carbohydrates structure + function

Learn the structure of polysaccharides and the function of the polysaccharides as part of the carbohydrate theory in the biological molecules A-level Biology topic. Learn the structure and function of starch, cellulose and glycogen.

Have a pen and paper at the ready to complete a summary comparison table to consolidate all the key points.

Try my resources to improve your skills and grades:

2)FULL A-LEVEL ACTIVE RECALL WORKBOOK

3) A-LEVEL NOTES

→ For more revision videos, try watching my ENTIRE topic videos:

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Photo credit:
Photo credit: Amylose, amylopectin and glycogen image

[qta]

I have recently started a lvl bio a couple weeks ago, and your videos have helped so much with consolidating content. thank you so much :))!

[jess]

this is really good, i’ve just started watching all your videos and they are all super clear and consise — super glad i stumbled across your channel! i take advanced biology in school but the professor does talk very fast and i can’t catch up sometimes. these videos clarified all my doubts, thank you so much! ❤️

[SkippiVarndenkof]

Thank you for this, I had been neglectful of solidifying the facts about these molecules so kept missing the single markers or multiple choice simple ones, but now I've got these clear in my mind thanks to this great, concise video!

[MEB-mbvu]

Thanks you so much for this, I’m writing notes in preparation for my exam in May and when looking through my book it wasn’t making much sense, but just having someone clearly talk through the information and the visuals really helped

[rehya]

thanks! i blurted out the table, and I have found my areas of weaknesses, so active recall can further supplement my study of polysaccharides.

Alpha glucose is crucial for providing me with energy for my draining 6th form era haha

[Ribbib-cksq]

Fantastic video my teacher just speaks and is confusing so this cleared things up alot.

[luckymusukwa]

This is really good and simpler to understand

[haidazeb]

I was wondering whether we need to know whether it is a 1-6 glycosidic bond or 1-4 glycosidic bond. Because in lesson my teacher briefly mentioned that we don’t know need to know whether it’s 1-4 or 1-6. Would you say it’s better to learn it or is it not in the spec? ( I am doing aqa bio)

[lanceleavitt]

Very helpful. I came here trying to learn more about the polysaccharides that make up the
chitin in the exoskeleton of ants. So, with gratitude, we add your knowledge to our continuing education.
--- Thanks for the great upload. ---

[jencyauriavales]

Hi, just wondering.... when u said "starch is formed from 2 polymers of alpha glucose" should it not be it is formed from 2 'monomers' of alpha glucose

[jasonsingh]

Hi Miss, I don’t get what you mean by how the structures being insoluble mean it won’t affect water potential. Could you explain that to me further. Thank you 😊

[ell]

Hey, do we have to know specifically about collagen because i keep finding exam questions about it but I can’t find it on the spec. Thank youu

[mahmoudbisaso]

Nice video.Can I access the notes the content in the video us a bit unclear

[suzis.]

But in metabolism when the bonds are broken and formed what happens to the carbohydrates? I mean which are broken by polar?

[aman-bdub]

can i watch your videos if i take AS level cie?

[maqyk]

How is starch insoluble in water if it can undergo hydrolysis and break down into the glucose monosaccharides? Surely this would mean that then the glucose dissolves in the water meaning it is soluble?

Hope im not being dumb sorry

[s..]

hi i do ocr level biology do you think i should still revise using your channel? thnaks. ps: i love your videos

[Masculinity-]

why cant we have good revision resources for

[tayebax]

Hey, the website for the practice questions don’t work