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A level Biology: Post your doubts here!

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3 I think. :p
Do mention condensation or alpha helix or branches.
Why am I so idiot? :mad::mad::ROFLMAO::ROFLMAO:

Actually, the last answer I showed was written in the first semester while the first answer is in the second semester. Somehow, my teacher gave me 2 marks :cry::cry:.no reason why
 
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Why am I so idiot? :mad::mad::ROFLMAO::ROFLMAO:

Actually, the last answer I showed was written in the first semester while the first answer is in the second semester. Somehow, my teacher gave me 2 marks :cry::cry:.no reason why
Its okay. :LOL: Bio does alot of weird things to your brain.
Yes I noticed both were different but one thing they had in common was they both did not mention condensation. :p
Sorry to hear that.It is dissapointing. :3
Why does your teacher make me feel that I know nothing about the MS.
 
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Can anyone see my answer for this question and tell me how many marks I should earn please?( it holds 4 marks)View attachment 59707
My answer: amylose is formed by joining multiple glucose units unto unbranched 1,4 glycosidic bonds.amylopectin is formed from joining multiple glucose units into 1,4 glycosidic bonds branching from 1,6 glycosidic bond.
I don't know how good my answer is, but I think it covers all the points :p

Amylose and amylopectin are formed by the condensation between alpha-glucose molecules. In amylose, in this way, a long, unbraching chain of several thousand glucose molecules linked by 1,4 glycosidic bonds is formed. Amylopectin is also made of many 1,4 linked a-glucose molecules, but the chains are shorter than in amylose, and branch out to sides. The branches are formed by 1, 6 glycosidic linkages.
 
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3 I think. :p
Do mention condensation or alpha helix or branches.
Its okay. :LOL: Bio does alot of weird things to your brain.
Yes I noticed both were different but one thing they had in common was they both did not mention condensation. :p
Sorry to hear that.It is dissapointing. :3
Why does your teacher make me feel that I know nothing about the MS.
Both didn't have condensation because both answers were written before I found this thread on xpc. It looks my brain is letting out fumes thanks to bio.:ROFLMAO:
 
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Advantages of genetic engineering over selective breeding.
Have there been questions for this in P4?
If yes how many marks?
 
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This is the new edition of Biology but I think the left side of this page is missing, as there is no Fig 2.7 and also seems like the text is not linking . I desperately need this one, if somebody has the book, could you please scan this page#33 of this book? :(

Untitled.jpg
 
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This is the new edition of Biology but I think the left side of this page is missing, as there is no Fig 2.7 and also seems like the text is not linking . I desperately need this one, if somebody has the book, could you please scan this page#33 of this book? :(

View attachment 59719
Even I got the ebook and this is how it is. :/
BUT hey look here:
https://books.google.com.sa/books?i...JzAC#v=onepage&q=Biological molecules&f=false
Search it up or should I post a screenshot?
 
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Ohh good! wonder why I didn't think of Google Books! (probably cuz they are never helpful, the pages needed the most are always missing:p) Thanks a bunch (y)
 
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