OCR Biology F212 (Molecules, Biodiversity, Food and Health)- 21st May 2012

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    What do you think they are going to say to that?..The paper needs to be challenging to separate capable from excelling students. They are hardly going to be like 'yeh your totally right, lets just ignore your result and give you an A because it was challenging'
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    (Original post by Jamie66)
    I might copypasta this and send it to them haha... Completely agree with everything you said. Nearly the whole of the first question was suggest, which basically just put me off to a really bad start... I was really hoping for an A, but now I'm really doubting myself
    I definitely agree! Really revised hard, learnt the specification and all the past questions....it wasn't really a test of your scientific ability but more application and logic! Too vague and I was doomed from question 1! lets hope the boundaries are extremely low!
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    (Original post by AS01)
    ya the paper was quite good
    ya a lot on enzymes I had thought better to keep exm on enzymes rather than writing F212
    ya its about how they feeding on flies creates selection pressure so the one which can produce inaudible sound will feed on fly and the same mutated genes passed on and the one which cannot produce inaudible sound died as they cannot feed anymore.
    yup I described the type of variation giving examples of bats
    which one you find the hardest?
    the hardest was the one with what happens if have no calorimeter? ?
    i said you light bulb something and use stop watch and calculate % transmission
    then for second one said boil with HCL neutralise hydrogen carbonate e..t.c
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    (Original post by AS01)
    I put random, sample,species evenness,abundance(as the question does not specify the species in the quadrat) and species richness
    thats 5 werent there 6 marks?
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    (Original post by Corryms)
    habitat was there too.
    yeah and that! you got the same?
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    (Original post by otrivine)
    is bacteria heterotrphic ?

    and for that question i said domain 3 and are archeae bacteria and eukaryote and said based on trna research like rna polymerase?
    same i wrote parasitic and heterotrophic
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    Although grade boundaries will be based on general results, a little help from protesting and complaints may reduce the grade boundaries slightly. I mean after all, every mark counts.

    Example: http://news.bbc.co.uk/1/hi/8482880.stm
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    (Original post by MrMeep2580)
    Swear the question wasn't about bacteria being heterotrophic it was about Fungi, in which i said they are Sacrophytic therefore they are heterotrophic
    no you had to complete like the names got plants protoctist cellulose cell wall e,t,c
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    (Original post by MrMeep2580)
    Swear the question wasn't about bacteria being heterotrophic it was about Fungi, in which i said they are Sacrophytic therefore they are heterotrophic
    I thought it was asking whether Prokaryotes were heterotrophs or autotrophs?
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    (Original post by otrivine)
    is bacteria heterotrphic ?

    and for that question i said domain 3 and are archeae bacteria and eukaryote and said based on trna research like rna polymerase?
    dunno i wrote heterotrophic too
    and its based on rRNA
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    one of the words was habitat as it was 'the place where an organism lives'
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    (Original post by superduperr)
    no it was a beta glucose?
    i put polysaccharide too, i had no idea!
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    (Original post by AS01)
    same i wrote parasitic and heterotrophic
    wait only said write nutriton write? so only wrote heterotrophic?
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    (Original post by otrivine)
    the hardest was the one with what happens if have no calorimeter? ?
    i said you light bulb something and use stop watch and calculate % transmission
    then for second one said boil with HCL neutralise hydrogen carbonate e..t.c
    You can't caculate transmission without a calorimeter, I said use different concentrations of reducing sugars and use them to compare and find a qualative or quantative result
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    (Original post by otrivine)
    the hardest was the one with what happens if have no calorimeter? ?
    i said you light bulb something and use stop watch and calculate % transmission
    then for second one said boil with HCL neutralise hydrogen carbonate e..t.c
    I said just look at the intensity of the colour of solution if darker then more sugar present if light then less.
    What did you keep why they are said models?
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    (Original post by kj14)
    thats 5 werent there 6 marks?
    6 Marks available for 6 words you had to fill in, I think..
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    (Original post by Corryms)
    What did people put for the question that said to suggest one way the farmer can increase production.
    I put vaccinations?
    I put feed them with antibiotics :s


    This was posted from The Student Room's iPhone/iPad App
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    (Original post by kj14)
    dunno i wrote heterotrophic too
    and its based on rRNA
    shoot made a mistake if i said like RNA polymerase will they allow it?
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    (Original post by kj14)
    thats 5 werent there 6 marks?
    I don't know but as far as I reckon its just 5 of them
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    (Original post by MrMeep2580)
    yeah and that! you got the same?
    I put random, sample,species evenness, species richness, habitat, and biodiversity.
    Not sure if I actually put biodiversity, I just know I didn't put abundance, simpsons, or percentage cover.
 
 
 
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