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    (Original post by shiney101)
    Thank you!
    If you go in depth for some of them more than others eg ATP since there's lots to write about would that be okay? eg: like 3 paras all about ATP, talking about photosynthesis, respiration or muscles contraction etc?
    I wouldn't do a paragraph on both photosynthesis and respiration but maybe if you did like say a paragraph on muscles (because that's proteins as well), respiration (like ETC) and something else you'd get the marks for breadth.
    Generally depends how many paragraphs you write and how good you are at linking it back to the question.
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    Do we need to know what saltatory propagation is?
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    (Original post by lucyloops1996)
    What are we going to do
    I don't know content still not learned, past papers not done, essays not planned.
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    i need gene tech to be the essay
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    (Original post by Hudl)
    Do we need to know about a generator potential because technically just before every action potential occurs there is a generator potential but this isn't usually mentioned in questions or answers. It is only discussed in the pacinian corpuscle chapter!
    Yes, well at least in regards to if the generator potential is above a certain threshold it causes an action potential.
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    (Original post by Henry1204)
    Anyone know a good way to remember the difference between rod cells and cone cells? realllly struggling....

    Cone = Colour!
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    (Original post by bananainpyjamas)
    Can someone please explain to me how DNA sequencing (Sanger method), can work out the exact order of bases in a section of DNA? Thank you!
    Name:  20150616_185102.jpg
Views: 102
Size:  516.7 KB

    If it asks you to read it then:

    You read it from the bottom most band, and then upwards in order of distance e.g.

    1
    ----3
    ----4
    -----------------5
    -2


    would be read as "25431"
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    (Original post by Plasmapause)
    Do we need to know what saltatory propagation is?
    Do you mean saltatory conduction, as in myelinated neurones? If so then yes enough info for a three marker
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    out of all the past papers, which would you guys suggest I do? Won't manage to get them all done on top of content etc
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    (Original post by Plasmapause)
    Do we need to know what saltatory propagation is?
    1)thats its fast due to not travelling whole length of fibre
    2)action potentials only occurs at nodes so the action potential jumps from node to node
    3)doesnt occur at myelin sheaths, only occurs in myleinated axons
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    (Original post by HopefulDentist..)
    out of all the past papers, which would you guys suggest I do? Won't manage to get them all done on top of content etc
    I'd say probably do the most recent one, or find the one with the highest grade boundaries and practice the worst case scenario
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    (Original post by HopefulDentist..)
    out of all the past papers, which would you guys suggest I do? Won't manage to get them all done on top of content etc
    whichever ones have topics you find difficult and practise them, then memorise what the markscheme looks for in those ones so you know what answers theyr elooking for
    skim over the rest, dont even bother writing down the 1/2 markers just do it in your head and check the answer
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    What are you hoping for? I want a B and I am finding the unit 5 past papers really difficult. I've been getting 40-50 marks without the essay but I've not planned for the essay much.
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    What else could you talk about in an enzyme essay>

    Got Structure (primary etc...), competitive/non-competitive, heat & ph, respiration & photosynthesis.

    Anymore ideas??
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    (Original post by Hudl)
    Do we need to know about a generator potential because technically just before every action potential occurs there is a generator potential but this isn't usually mentioned in questions or answers. It is only discussed in the pacinian corpuscle chapter!
    And that's because a generator potential is reserved for receptors not neurones
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    (Original post by jessiebon)
    What are you hoping for? I want a B and I am finding the unit 5 past papers really difficult. I've been getting 40-50 marks without the essay but I've not planned for the essay much.
    how many marks are needed for roughly 89 ums? or a low B/high C ?
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    For the essay, how much detail do we need to go into on topics from Unit 1 and unit 2?
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    any predictions on what the essay might include? im so screwed...
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    (Original post by kiwi8397)
    an essay on proteins will be a gift from the biology gods imo ^_^
    apparently proteins wasthe essay on the stolen bio 5 paper so its unlikely to be that for ours as they will use a different one
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    (Original post by TheRaspberry)
    What else could you talk about in an enzyme essay>

    Got Structure (primary etc...), competitive/non-competitive, heat & ph, respiration & photosynthesis.

    Anymore ideas??
    Muscle contraction - ATPase
    Neurotransmitters being broken down etc
 
 
 
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