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CIE Biology Revision notes per chapter

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Doing a-level Biology in November... making notes. will upload chapter everyday! if any mistakes please let me know


Thanks for looking :):)
 

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  • Infectious disease.pdf
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  • Biological molecule.pdf
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  • Cell Membranes and transport.pdf
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  • Cell and nuclear division.pdf
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  • Gas exchange and smoking.pdf
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  • Ecology.pdf
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  • Immunity.pdf
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  • Enzyme.pdf
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Can you explain this paragraph to me?

Unlike the xylem, the phloem tissue is made of living cells, because as we will se later, there are several forces causing the transport of water in the xylem, but there are no forces causing the translocation, so substances need to be moved along using active uptake, which needs energy.

And I wanted to ask you about the phloem vessel that why does it need sieve plates and sieve tube element? Can you please explain the whole structure of phloem vessels to me? I'd be grateful!
 
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try seeing this video....ill upload my notes on that topic tomorrow. thianks:)
 
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if these are O Level or IGCSE notes, then there are some things that are very complex and u do not have to study them

for example, u have exaggerated the structure of a simple cell by adding irrelevant parts or attaching pictures that contain all the irrelevant parts

again this only applis if these are O Level or IGCSE notes
 
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for biological molecules,,,in the bi layer it is the hydrophilic(water loving) heads facing outwards not hydrophobic...nd i suppose the colour is blue-black and not black-blue,,,,,and primary structure i guess is,,the number,type and sequence of amino acids to form a polypeptide chain.....but otherwise i suppose this is good for revision,,,really good work man.....thx a lot,,,really appreciate it!! :)
 
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for biological molecules,,,in the bi layer it is the hydrophilic(water loving) heads facing outwards not hydrophobic...nd i suppose the colour is blue-black and not black-blue,,,,,and primary structure i guess is,,the number,type and sequence of amino acids to form a polypeptide chain.....but otherwise i suppose this is good for revision,,,really good work man.....thx a lot,,,really appreciate it!! :)

sorry must be a type error! its all long writting but thanks for ur feedback...really appreciate it! :)
 
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yeah but I seem to be having a problem ! I cant study and memorise notes however im better at doing past papers but i cant solve unless i understand and memorise everything
 
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yeah but I seem to be having a problem ! I cant study and memorise notes however im better at doing past papers but i cant solve unless i understand and memorise everything

ya thats ok! if that happens you should try breaking down things like FOR EXAMPLE: if u need to memorise a paragraph break it down to sentence and write it in bullet point.. and memorise the bulletpoint by keep reading it! that might help! try it
 
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Thank you soooooooo muucccchhhhhh for the notes !! I'm praying for you .. wish you all the best for your exams and In shaa allah you'll get A*'s :D
are they all the AS chapters ?
and if you could tell me about the revision method ? because I changed my board from edexcel to cie >.<
and i'm retaking my AS exams only .. please help me if you could
thanks again :)
 
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