[arvin_infinity]

Lets say

Maltose= it's alpha-glucose but not beta-glucose
Starch= alpha
Cellulose= beta
Glycogen= alpha


Any tips-mnemonic to memorise them?


+rep

[The Illuminati]

(Original post by arvin_infinity)
Lets say

Maltose= it's alpha-glucose but not beta-glucose
Starch= alpha
Cellulose= beta
Glycogen= alpha


Any tips-mnemonic to memorise them?


+rep

Can't you just think of all of them as alpha apart from cellulose?

[thegodofgod]

(Original post by arvin_infinity)
Lets say

Maltose= it's alpha-glucose but not beta-glucose
Starch= alpha
Cellulose= beta
Glycogen= alpha


Any tips-mnemonic to memorise them?


+rep

(Original post by The Illuminati)
Can't you just think of all of them as alpha apart from cellulose?

That's exactly how I remember it, as cellulose is the only polymer where you rotate every alternate ß-glucose molecule 180^o, as well as the fact that cellulose is the only polymer which is not branched.

[arvin_infinity]

(Original post by The Illuminati)
Can't you just think of all of them as alpha apart from cellulose?

I tried that but after a while I was like : soo was it all B and one alpha oorr!!

[arvin_infinity]

(Original post by thegodofgod)
That's exactly how I remember it, as cellulose is , as well as the fact that cellulose is the only polymer which is not branched.

It helped cause now I remember cellulose is the odd one out!

the only polymer where you rotate every alternate ß-glucose molecule 180^o

em what?

[thegodofgod]

(Original post by arvin_infinity)
em what?

The structure of cellulose is such, that every other ß-glucose molecule is flipped vertically, i.e. they're symmetrical in the x-axis (ignore the methyl cellulose bit):

[The Illuminati]

Isn't this F212? Have either of you started F215 revision yet?

[05sykesd]

I think of it as; Humans cannot digest beta glucose, and cellulose is fibre (which goes straight through people) so, cellulose must be made of beta, whereas we can digest the rest do they must be alpha

[thegodofgod]

(Original post by The Illuminati)
Isn't this F212? Have either of you started F215 revision yet?

I don't do OCR - I'm on AQA, but yeah, we're doing Unit 5 now

[The Illuminati]

(Original post by thegodofgod)
I don't do OCR - I'm on AQA, but yeah, we're doing Unit 5 now

Does your unit feel like they've packed as much stuff as physically possible and SO many new concepts?

[thegodofgod]

(Original post by The Illuminati)
Does your unit feel like they've packed as much stuff as physically possible and SO many new concepts?

All of the new stuff:

• Taxis / Kinesis
• Role of receptors
• Action potentials
• Synapses
• Muscle contraction
• Gluco- / Thermoregulation in more detail
• Feedback mechanisms
• Protein function
• Protein synthesis (mRNA, tRNA, Transcription, Translation)
• Totipotency / Regulation of transcription and translation
• DNA Technology (Gene cloning, Vectors, PCR, Recombinant DNA, Gene therapy, Locating/Sequencing Genes, Gene screening, Genetic fingerprinting)

That's just 1 part.

Then there's the stupid Synoptic essay, worth 25/100 marks, which means we have to re-learn Units 1, 2 and 4

Luckily I'm re-sitting Unit 2 anyway, so that helps a bit

But I prefer this than Ecology (AQA Unit 4)

[The Illuminati]

(Original post by thegodofgod)


But I prefer this than Ecology (AQA Unit 4)

I hate Ecology a lot. Like.........A LOT. But all this new stuff is so intense and kinda complicated that Ecology is starting to seem like a nice safe option. And when that happens, I know I'm in trouble.

your unit 5 is so similar to my unit 4 which was the best unit ever. I could talk about action potential all day. I have muscle contractions in my unit 5 too and I can never fully understand it. I told my teacher this and she just told me to look up the essay question for it and learn the answer word for word but I actually want to learn and understand stuff not be able to recite a bunch of stuff that makes no sense to me. Antway how would that even help me in an application question

Can't wait to go to uni and actually have more control over what I learn. I will never have to do Ecology again

[thegodofgod]

(Original post by The Illuminati)
I hate Ecology a lot. Like.........A LOT. But all this new stuff is so intense and kinda complicated that Ecology is starting to seem like a nice safe option. And when that happens, I know I'm in trouble.

your unit 5 is so similar to my unit 4 which was the best unit ever. I could talk about action potential all day. I have muscle contractions in my unit 5 too and I can never fully understand it. I told my teacher this and she just told me to look up the essay question for it and learn the answer word for word but I actually want to learn and understand stuff not be able to recite a bunch of stuff that makes no sense to me. Antway how would that even help me in an application question

Can't wait to go to uni and actually have more control over what I learn. I will never have to do Ecology again

I actually quite like my Unit 5

Love action potentials, nerves, synapses, NM junctions, muscle contraction is okay. Feedback mechanisms seem okay. Taxis / Kinesis is boring but easy, so it's okay . Love receptors and the heart . Love homeostasis . Protein sysnthesis is also lovely .

Detest DNA technology

Although I like Recombinant DNA technology and insulin because I wrote a whole essay on that

[arvin_infinity]

(Original post by thegodofgod)
The structure of cellulose is such, that every other ß-glucose molecule is flipped vertically, i.e. they're symmetrical in the x-axis (ignore the methyl cellulose bit):

Good stuff!!

is that tow ß-glucose inside the bracekts?

I never give up on clicking +rep button and TSR also never let me

[arvin_infinity]

(Original post by 05sykesd)
I think of it as; Humans cannot digest beta glucose, and cellulose is fibre (which goes straight through people) so, cellulose must be made of beta, whereas we can digest the rest do they must be alpha

+rep
Nothing can top that!! amazing