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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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    53
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    (Original post by krishkmistry)
    Anyone put high tensile strength for the property of collagen ?


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    I did
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    (Original post by niceguy95)
    Thats right, I just could not write the displayed formula on here
    Phew! I've run out of reps but awesome
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    (Original post by MrMeep2580)
    WHAT I PUT

    R1: slightly above.
    R2: same position as R1 but then another one above that.
    Thats what I put, hope it's right!!
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    Think it's going to be 74 at the max - fair paper with a lot of easy marks


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    WATER BEAR:
    ANIMAL http://en.wikipedia.org/wiki/Tardigrade
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    As soon as I see biological molecules, all I think of are the 4 main ones, i.e lipids, proteins, carbohydrates and nucleic acids. So for the question on the name of the biological molecule that *some enzyme* was, I, being a gullible ****, wrote Proteins...I thought it was weird how they said it was a protein molecule in the question...I cannot believe the word enzyme didn't cross my mind. I want to slap myself so hard. :doh:
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    Can someone explain, about the high concentration of ethanol question after the break down part
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    I just read the page about water bear's on Wikipedia, its kingdom is animalia :dong:
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    What is all this about underlining mycobacterium?


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    (Original post by MrMeep2580)
    WHAT I PUT

    R1: slightly above.
    R2: same position as R1 but then another one above that.
    cabn you explain this? cant remember what I put
    definitely had one higher up on r1
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    (Original post by ellemcjelly)
    thats what i said but loads of my friends said it was animalia coz it was a bug :s
    Wikipedia says its an animal.

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    (Original post by MrMeep2580)
    WATER BEAR:
    ANIMAL http://en.wikipedia.org/wiki/Tardigrade
    That's disappointing, wrote that then crossed and put protoctusta as t was called WATER bear
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    As the label for X I put "Organic base cytosine", and my friend said I wouldnt get the mark. Would I get the mark?
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    Was there a question about the order of classification..... And if so how many marks think i missed the question
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    (Original post by MrJiggly)
    As soon as I see biological molecules, all I think of are the 4 main ones, i.e lipids, proteins, carbohydrates and nucleic acids. So for the question on the name of the biological molecule that *some enzyme* was, I, being a gullible ****, wrote Proteins...I thought it was weird how they said it was a protein molecule in the question...I cannot believe the word enzyme didn't cross my mind. I want to slap myself so hard. :doh:
    I did the same thing but its a biological molecule and enzymes are proteins too. I don't think so we will lose this mark
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    (Original post by niceguy95)
    Can someone explain, about the high concentration of ethanol question after the break down part
    Higher volume of ethanol means there's a higher probability of ethanol forming a ESC with ethanol dehydrogenase. less DET broken down so less toxins released.
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    (Original post by MrMeep2580)
    WHAT I PUT

    R1: slightly above.
    R2: same position as R1 but then another one above that.
    me too my friends didn't agree but i was pretty happy with my answer to be honest!
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    (Original post by sylly)
    120 out of a possible 150
    thanks
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    (Original post by MrMeep2580)
    WHAT I PUT

    R1: slightly above.
    R2: same position as R1 but then another one above that.
    I put that but in r2 the one above was in line with the far right test tube

    think about it like this...
    in the first test tube with the band given the DNA strands were XX
    after replicating once in the new nitrogen it was XY
    after replicating again it was YY and XY
    then the final test tube was YY

    It may be wrong but it made sense to me
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    (Original post by niceguy95)
    Can someone explain, about the high concentration of ethanol question after the break down part
    I thought it was to do with competitive inhibition:
    The other substrate was competitive to substrate in binding to the active site of the enzyme.
    Therefore the high conc of the inhibitor, the less other substrate broken down into toxic products -> less poisoning effect on person
 
 
 
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