# Do I need to remember the structure of glucose?

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#1
I’m doing OCR A-level Biology, I know I need to be able to distinguish between the different forms of glucose and to be able to identify it from diagrams, but do I need to know how to draw it from scratch?
0
4 years ago
#2
I do edexcel, but im pretty sure you do need to be able to draw it
It may be worth checking the specification.
1
#3
(Original post by Yipyipee)
I do edexcel, but im pretty sure you do need to be able to draw it
It may be worth checking the specification.
Thanks, the spec is quite vague in what it requires students to do but will ask my teacher 😊
0
4 years ago
#4
(Original post by georgelagalle)
I’m doing OCR A-level Biology, I know I need to be able to distinguish between the different forms of glucose and to be able to identify it from diagrams, but do I need to know how to draw it from scratch?
I've never seen a question where you have to draw it from scratch (I'm in year 13 and do OCR also) but I've seen one where they give you the whole structure of Beta/Alpha and ask you to draw the other, so I think you just need to know the difference in position of an OH group
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#5
(Original post by Joemassey1)
I've never seen a question where you have to draw it from scratch (I'm in year 13 and do OCR also) but I've seen one where they give you the whole structure of Beta/Alpha and ask you to draw the other, so I think you just need to know the difference in position of an OH group
Thanks 👍🏼
0
4 years ago
#6
(Original post by Yipyipee)
I do edexcel, but im pretty sure you do need to be able to draw it
It may be worth checking the specification.
do you know what the grade boundaries are for edexcel biology?What percent would be an A
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#7
(Original post by iiarkhamknightii)
do you know what the grade boundaries are for edexcel biology?What percent would be an A
No, for OCR it’s usually around 80%, so edexcel is probably around that sort of number maybe.
0
4 years ago
#8
(Original post by georgelagalle)
I’m doing OCR A-level Biology, I know I need to be able to distinguish between the different forms of glucose and to be able to identify it from diagrams, but do I need to know how to draw it from scratch?
I think you do. Along with ribose and deoxyribose.
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#9
(Original post by HateOCR)
I think you do. Along with ribose and deoxyribose.
Ok thanks 👍🏼
0
4 years ago
#10
(Original post by georgelagalle)
Ok thanks 👍🏼
They are quite similar. If you just remember a-glucose and ribose then you just need to knock off an O for deoxyribose and swap the C-OH and C-H bond for a and b-glucose
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4 years ago
#11
(Original post by georgelagalle)
I’m doing OCR A-level Biology, I know I need to be able to distinguish between the different forms of glucose and to be able to identify it from diagrams, but do I need to know how to draw it from scratch?
Yeah sadly you do, I also do OCR A2 Biology and my teacher has made it clear that you need to know what Alpha and Beta glucose look like. This includes drawing them.
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