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    (Original post by plasmaman)
    my favourite question was a 3 marker asking the advantage of people not having the desire to eat when their stomach was full, same as the mouse and dopamine one you were talking about above.

    And honestly 2 of the marking points were to prevent obesity and vomiting...
    but it will be over in 2 days
    Oh wow yeah I forgot about that one! Crazy times. I think I might have missed a mark on it too because I neglected to state the completely obvious, haha.

    And that's the only fact that's getting me through. Especially since that will be all my exams finished then.
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    (Original post by charlottei)
    Oh wow yeah I forgot about that one! Crazy times. I think I might have missed a mark on it too because I neglected to state the completely obvious, haha.

    And that's the only fact that's getting me through. Especially since that will be all my exams finished then.
    ha ha yeah definitely we're all gonna make it!
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    How have people been doing on past papers? The highest I've got (not including essay marks) on a past paper is 46, but I've only done 2 need to get them all done tomorrow.
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    Not ready for BIOL5 at all.
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    What do you guys think the synoptic essay will be now that our exam has been rewritten?
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    (Original post by z-kauser)
    Not ready for BIOL5 at all.
    me neither help I know nothing


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    does everyone think bio content is harder than bio 4 content ? I do


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    (Original post by asdfghnmbmn)
    What do you guys think the synoptic essay will be now that our exam has been rewritten?
    it's been re written WHAT?


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    could someone explain to me why the presynaptic neurone at a synpase has many mitochondria, im not sure what the extra ATP is used for, any help?
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    What's the difference between the refractory period and hyper polarisation?
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    (Original post by may_1)
    it's been re written WHAT?


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    http://www.theguardian.com/education...-papers-stolen
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    (Original post by djhodnett)
    could someone explain to me why the presynaptic neurone at a synpase has many mitochondria, im not sure what the extra ATP is used for, any help?
    Used to recombine the broken down acetyl and choline from the acetylcholinesterase back into acetycholine
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    My prediction is the essay is either about DNA or ions.
    Ions would be a dream come true
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    (Original post by djhodnett)
    could someone explain to me why the presynaptic neurone at a synpase has many mitochondria, im not sure what the extra ATP is used for, any help?
    As far as I'm aware it's to do with the extra processes involved with the passage of the action potential across the synapse. The presynatptic neurone needs to be able to perform many condensation reactions on the acetyl coenzyme A and the choline (which I think is what makes the acetyl choline) and this requires energy. Also forming the lysosomes to hold the acetylcholine in requires energy. There's probably also some active transport going on somewhere I would presume of acetyl coenzyme A and choline back into the presynaptic knob once the aceylcholinesterase has hydrolysed them.
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    (Original post by Ozy96)
    Used to recombine the broken down acetyl and choline from the acetylcholinesterase back into acetycholine
    (Original post by TheBreatGritain)
    As far as I'm aware it's to do with the extra processes involved with the passage of the action potential across the synapse. The presynatptic neurone needs to be able to perform many condensation reactions on the acetyl coenzyme A and the choline (which I think is what makes the acetyl choline) and this requires energy. Also forming the lysosomes to hold the acetylcholine in requires energy. There's probably also some active transport going on somewhere I would presume of acetyl coenzyme A and choline back into the presynaptic knob once the aceylcholinesterase has hydrolysed them.
    thank you
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    i dont know if this is a really stupid question
    but when using restriction endonucleases in DNA tech
    how do you know where the on the DNA the enzyme is gonna cut?
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    Can someone explain how to construct the restriction map on page 270 of the NT book (application question 1)


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    anyone got any idea fro what the essay might be based on past questions ?
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    Anyone know what year dna technology was asked in the essay?


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    (Original post by EmilyC96)
    Anyone know what year dna technology was asked in the essay?


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    june 2011
 
 
 
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