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    (Original post by baffledchick)
    Thank you do these notes cover everything? I've used the textbook for Excretion and Photosynthesis, after that it just seems too long lol
    Yeah pretty Much because this is basically just the spec with answers so it's very efficient 😉
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    are there any predictions yet??
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    (Original post by YouAgain)
    Yeah pretty Much because this is basically just the spec with answers so it's very efficient 😉
    Thank you!! I'll memorise them and then do past papers Just need a B in this but my mocks haven't been going well for this unit, I thought it was pretty simple but..
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    Can anyone tell me the function of the Distal convuluted tubule and how to answer a question that asks "outline the sequencing of a genome" because I see people on about BACs which is not stated in my book

    Many thanks
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    Whats an example of a positive feedback? i
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    (Original post by Beni24)
    Whats an example of a positive feedback? i
    releasing oxytocin during childbirth
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    (Original post by lilmizh05)
    Hey does anyone have the June 2014 paper for F215?
    http://www.thebiotutor.com/past-papers3.html

    All the recent biology papers +mark schemes
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    (Original post by TheLegalDealer)
    Can anyone tell me the function of the Distal convuluted tubule and how to answer a question that asks "outline the sequencing of a genome" because I see people on about BACs which is not stated in my book

    Many thanks
    DCT uses active transport to adjust the concentration of the fluid (urine) before entering the collecting duct. This ensures that the fluid in the collecting duct will have a high water potential so deeper into the medulla, there will be a steep water potential gradient so water can be reabsorbed by osmosis.
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    Someone tell me what topic areas/questions that could be asked on f214
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    (Original post by Student23478)
    Usually They come up in tix boxes but how the hell do we know what to tick??? I get really confused with Q like that
    Do you have an example question like this?


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    (Original post by Beni24)
    Whats an example of a positive feedback? i
    Dropping body temp -> Hypothermia too. Oxytocin is safer though.
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    (Original post by AnnekaChan173)
    Dropping body temp -> Hypothermia too. Oxytocin is safer though.
    Okay thank you, Do you know if they can ask us 7 markers?
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    (Original post by AnnekaChan173)
    Dropping body temp -> Hypothermia too. Oxytocin is safer though.
    Why does drop in body temp causes further drop in body temp? Surely we'd role off the standard answer about how drop in temp detected by thermoregulartory centre in hypothalamus and then talk about the ways in which body temperature is increased again, hence negative feedback? Or am I misunderstanding something?


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    (Original post by Beni24)
    Okay thank you, Do you know if they can ask us 7 markers?
    On positive feedback? No, I'd be surprised if we even got a two/three on positive feedback tbh. Easily though for a change in body temperature negative feedback loop.
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    What is the hardest past paper??
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    (Original post by Beni24)
    Whats an example of a positive feedback? i
    Just to further ease your mind we don't actually need to know an example, just the definition
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    (Original post by ImogenWillis)
    What is the hardest past paper??
    Both June 2011 and June 2014 you only had to get 40 marks to get an A, the lowest it's ever been so i'd assume they're the ones people found the hardest
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    How would i answer "outline the sequencing of a genome " i have no clue how to and people are banging on about BACs which ive never heard of , Help me Please !!!!!!
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    (Original post by maisie__x)
    Both June 2011 and June 2014 you only had to get 40 marks to get an A, the lowest it's ever been so i'd assume they're the ones people found the hardest
    Thanks, do you know which papers would be the best ones to look over or do before the exam to prepare??
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    (Original post by TheLegalDealer)
    How would i answer "outline the sequencing of a genome " i have no clue how to and people are banging on about BACs which ive never heard of , Help me Please !!!!!!
    Sequencing the genome involves PCR and Electrophoresis, so as long as you describe and explain these two processes you should get the marks.
 
 
 
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