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OCR Biology F212 Revision [3rd June 2013] (Now Closed) Watch

  • View Poll Results: How did you feel the F212 exam went?
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    (Original post by krishkmistry)
    Anyone put high tensile strength for the property of collagen ?


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    thats accepted along with flexible
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    For the people worrying about the 7 mark phagocytosis question, do not worry too much on that. I am currently in your position for my chemistry unit 1. This paper is out of 100, 5 marks lost is not a tragedy by any means....in unit 1 YES, in unit 2, not really.
    Anyhow....there were definitely 2 awardable points there I reckon.

    Btw guys....for collagen question, I put "left SIDED helices". Do you reckon that is awardable?
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    (Original post by Loiks94)
    Was the kingdom animale or protoctist for the water bear and why?
    Protocrista due to size (0.1 micro meters) and it being a water bear

    Protoctusta are usually found in water
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    (Original post by MrMeep2580)
    thats accepted along with flexible
    Put flexible and crossed it out considering its blood vessel


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    (Original post by MedMed12)
    could be that too
    or insoluble
    WOO! I put collagen is insoluble. No point having collagen in blood vessels if it dissolves in blood or water.
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    (Original post by MedMed12)
    well done you!!
    yeah it was a nice paper I got 80/100 on that as a mock and A was 71
    just so annoyed at my silly mistakes as its easy UMS to save on A2 papers :/ I did well in f215 mock so hopefully the real thing I might/could be OK with.
    Was initially aiming for full UMS on this paper :P such a fail aha!
    Dont worry, you will get it you still got 2 more papers for biology! Still a lot of chance
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    (Original post by krishkmistry)
    Clever question that,got to give it to OCR


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    yeah really was for the amino acid general formula question did you draw it out with a carboxyl, amine and R group?
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    Oh dear, I put Tuberculosis mycobacterium, wrong way round :/


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    I put collagen is mad eup of three alpha chains
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    (Original post by Dr. Django)
    For the amino acid question instead of writing out the formula I drew an amino acid and labelled it :/
    Thats right, I just could not write the displayed formula on here
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    (Original post by MarkProbio)
    Personally I loved this paper.

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    how did you revise for this paper ?
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    where did you draw the bands of dna on the test tubes?
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    (Original post by krishkmistry)
    Anyone put high tensile strength for the property of collagen ?


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    Me! I hope thats right?


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    For the 7 marker on phagocytosis I started off talking about the immune response -_-
    I then labeled that as 'immune response' and wrote the phagocytosis explanation..

    Think they will be nice and ignore the immune response bit?
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    (Original post by krishkmistry)
    Put flexible and crossed it out considering its blood vessel


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    well it'll need to constrict and contract so withstand a lot of high blood pressure so it being flexible allows it to do so, plus its one of the main properties of collagen.
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    (Original post by otrivine)
    Dont worry, you will get it you still got 2 more papers for biology! Still a lot of chance
    thanks hope so, but A2 is harder. Just wish I read the questions more carefully tbh I even took a highlighter and I say this after every exams :/


    (Original post by LucyQ)
    Oh dear, I put Tuberculosis mycobacterium, wrong way round :/


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    thats fine should be anyway
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    Structure of collagen for 6 marks? Really... And then another 3 marks on collagen differences -.- wish I'd revised collagen more. I wrote that it had a helix and had fibrils and about disulfide an hydrogen bonds an hydrophobic interactions. For the differences between haemoglobin and collagen I wrote haemoglobin isn't a helix, haemoglobin contains iron and haemoglobin doesn't have fibrils. Can anyone guess how many marks ill get? :s
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    (Original post by krishkmistry)
    Exam was fair but back me and say if you didn't revise you we're screwed.one question - I put collagen had a triple helix and haemoglobin has a double helix - I've contradicted myself haven't I ?


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    I honestly thought I was going to fail going into that exam, hoped for a C. Having said that, I think I got an A. I didn't revise too much, my content knowledge was atrocious. But I there were loads of suggest questions which saved me. Think Grade boundary for an A will be maybe 70?
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    (Original post by ellemcjelly)
    where did you draw the bands of dna on the test tubes?
    WHAT I PUT

    R1: slightly above.
    R2: same position as R1 but then another one above that.
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    (Original post by Sruthi.P)
    Hey guys what's the minimum UMS mark you have to get to get an A? Thanks!
    120 out of a possible 150
 
 
 
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