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    (Original post by Bullit)
    My guess would be something to do with the resulting lower pH being optimal for the enzymes that break down the cell cytoskeleton. Also the protons interfering with hydrogen bonds in the cell.
    Cytochrome c is released into cytoplasm, which interacts with some other protein with a long name. Then, that protein attaches to the actin cytoskeleton and breaks it down. Blebbing occurs due to loss of cytoskeleton
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    hey guys. what are the predicted topics people think are gonna come up tomorrow?
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    (Original post by gradu)
    I've done the same as you!

    Doesn't seem "too" bad in fairness. I have a solid idea of what will come up :-)

    I predict these essay questions:

    - How is Insulin produced..( refering to recombinant DNA etcetc )
    - PCR
    - MUSCLES
    - Brain

    I'll get a chinese before my exam
    What do you mean by 'how is insulin produced'?
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    (Original post by slacker07906)
    What do you mean by 'how is insulin produced'?
    its probably all that cDNA stuff using reversal transcriptase enzymes etc
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    What do you mean by 'how is insulin produced'?
    production by reverse transcriptase?
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    He means how they insert the insulin gene into bacterial plasmids which are then taken up by E.coli cells and used to harvest insulin from the ones that take up the recombinant DNA plasmids.
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    Yeah I thought so just wanted to double check. Hasn't that already been on?
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    (Original post by rebeccalouise_92)
    when teh sarcoplasmic reticulum release calcium this binds to the troponin which changes shape moving the tropomyosin away from the to actin binding sites.

    this allows a myosin head group to attach to the thin filament and this forms a cross bridge

    the head group bends causing the thin filament to be pulled along and overlap the thick filament. adp n pi are released

    the cross bridge breaks as new atp attaches to teh myosin head

    head groups move back an attach as a result

    movement of actin filaments = muscle contraction. the contraction cycle continues if atp is available and calcium level in teh sarcoplasm is high.. atp is only available for 2 secs in the muscle other sources are aerobic respiration which needs 02, anaerobic resp and phosphate creatine
    hey thanks
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    (Original post by *Funky-buddha*)
    Sorry if it's been asked before but does anyone have the mark scheme for the Jan 2011 paper it'd be a massive help!
    Here

    Goodnight all.

    Good luck.
    Attached Images
  1. File Type: pdf MS_F215_Jan11.pdf (403.5 KB, 61 views)
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    (Original post by yesioo)
    send it to me?
    Sure thing!
    Could you pm me your email address because I don't know how to attach word files on mail on here
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    i predict something on conservation and sustainability!
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    (Original post by yesioo)
    send it to me?
    Ignore the PM thing, i've done it on here

    For anyone else that wants them too, I've *hopefully* covered everything on the spec, although some things may need a bit more detail
    Good luck tomorrow!
    Attached Files
  2. File Type: docx F215 Module 1.docx (38.6 KB, 885 views)
  3. File Type: docx F215 Module 2.docx (44.0 KB, 1410 views)
  4. File Type: docx F215 Module 3.docx (25.3 KB, 3436 views)
  5. File Type: docx F215 Module 4.docx (56.8 KB, 3762 views)
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    Where did today suddenly go?
    I seemed to have spent ages revising but I feel as if I know nothing :eek:
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    all nighter anyone?


    me for sure

    CRAM CRAM CRAM!
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    Someone explain the selective breeding of bread wheat please! .. Don't understand it at all! In the simpliest way possible please
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    (Original post by Jess6893)
    Ignore the PM thing, i've done it on here

    For anyone else that wants them too, I've *hopefully* covered everything on the spec, although some things may need a bit more detail
    Good luck tomorrow!
    Thanks! I shall read this in the morning
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    (Original post by Signed Solution)
    Thanks! I shall read this in the morning
    Hahaa yup, pretty much typed up from the textbook & revision guide
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    (Original post by Jess6893)
    Ignore the PM thing, i've done it on here

    For anyone else that wants them too, I've *hopefully* covered everything on the spec, although some things may need a bit more detail
    Good luck tomorrow!
    extreme. thankyou. goodluck tomorrow
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    wow thread is dead.
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    Good luck everybody!
 
 
 
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