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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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    Hi guys, I need your honest opinion on this. For the phagocyte question, I read the pathogens part, but didn't read the whole question until it said "phagocyte" so I instantly started to write about B Lymphocytes and T Lymphocytes, completely messed up that question, i talked about T Lymphocytes detecting antigen on Antigen presenting cells, and binding to it, secreting enzymes to kill the cell by actions of T Killer Cells etc. Do you think I will lose all the 7 marks, or do you think they will be kind and allow maybe 2 marks? The worst part is that I know everything about phagocytosis. Can't believe I messed up a 7 mark question, really wanted 135 UMS.
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    (Original post by ellie2996)
    For question one I put polypeptide (( do you think this would be accepted?
    I'm sorry but I doubt it!
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    The exam seems easy but looking back on it wording of the questions seems confusing and you can easily lose easy marks

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    (Original post by burnatte4)
    I'm sorry but I doubt it!
    Why not? A sequence of amino acids is a polypeptide chain.
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    (Original post by JindleBrey)
    Why not? A sequence of amino acids is a polypeptide chain.
    I put polypeptide, it seems right.
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    (Original post by AnharM)
    Hi guys, I need your honest opinion on this. For the phagocyte question, I read the pathogens part, but didn't read the whole question until it said "phagocyte" so I instantly started to write about B Lymphocytes and T Lymphocytes, completely messed up that question, i talked about T Lymphocytes detecting antigen on Antigen presenting cells, and binding to it, secreting enzymes to kill the cell by actions of T Killer Cells etc. Do you think I will lose all the 7 marks, or do you think they will be kind and allow maybe 2 marks? The worst part is that I know everything about phagocytosis. Can't believe I messed up a 7 mark question, really wanted 135 UMS.
    same here bro.
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    (Original post by Legal drugdealer)
    for the TB question i put M.Bovis is this right?
    Is it myobacterium or mycobacterium :rolleyes: because I wrote Mycobacterium bovis :/
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    I think polypeptide is right because saying primary structure is the term not the name... but who knows?
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    do spelling matter, i think i put micobacterium, also for q1 i put primary structure, is that right?
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    Thought it was a very nice paper for OCR's standards, especially in comparison to the awful one I sat last summer. Only question that threw me slightly was the 6 marker on collagen structure, as I was struggling for points after getting 3 down aha. 3 marker on EIA I was clutching at straws a bit too, my 3 things they have to take into consideration were:
    -Length of time it will take for building to be completed
    -What area (size) of habitat will be affected by the building work
    -Are there any endangered species present in that habitat already

    No idea whether any of those would gain a mark?
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    (Original post by TheIsotope)
    do spelling matter, i think i put micobacterium, also for q1 i put primary structure, is that right?
    I put primary structure and I think that's right but then again others think its polypeptide, guess we'll never know...atleast until the markscheme is made.
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    (Original post by Unsworth)
    Thought it was a very nice paper for OCR's standards, especially in comparison to the awful one I sat last summer. Only question that threw me slightly was the 6 marker on collagen structure, as I was struggling for points after getting 3 down aha. 3 marker on EIA I was clutching at straws a bit too, my 3 things they have to take into consideration were:
    -Length of time it will take for building to be completed
    -What area (size) of habitat will be affected by the building work
    -Are there any endangered species present in that habitat already

    No idea whether any of those would gain a mark?
    I wrote the last two you wrote, I'm pretty sure they're correct as I've seen them both in mark schemes before
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    Don't you love not having to wait 24 hrs to talk about ocr exams?


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    (Original post by yasmin.mahfouz)
    Don't you love not having to wait 24 hrs to talk about ocr exams?


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    thats only for edexcel. OCR is taken only in the UK so it doesnt matter.
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    What do we think an A will be
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    (Original post by Unsworth)
    Thought it was a very nice paper for OCR's standards, especially in comparison to the awful one I sat last summer. Only question that threw me slightly was the 6 marker on collagen structure, as I was struggling for points after getting 3 down aha. 3 marker on EIA I was clutching at straws a bit too, my 3 things they have to take into consideration were:
    -Length of time it will take for building to be completed
    -What area (size) of habitat will be affected by the building work
    -Are there any endangered species present in that habitat already

    No idea whether any of those would gain a mark?
    My three things for the EIA:
    Any endangered species in the area.
    How the development would affect biodiversity
    Simpsons index of diversity to take into account.
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    (Original post by Kits)
    What do we think an A will be
    Was about to ask the same thing. Considering the highest its ever been is 73 (i think), maybe 72, probably at most 75
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    I'm probably arguing this point more because I did put this, but surely 'polypeptide' is acceptable for the very first question, because that IS the name given to a sequence of Amino acids. And in every past paper I have done with a question like that, they accept 'polypeptide' ...
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    (Original post by hassaniqbal99)
    Is it myobacterium or mycobacterium :rolleyes: because I wrote Mycobacterium bovis :/
    It's Mycobacterium tuberculosis or Mycobacterium bovis (just needed to put 1 I think - I put both). There are rumours it may have been needed to be underlined.
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    (Original post by lucindaellaaa)
    I'm probably arguing this point more because I did put this, but surely 'polypeptide' is acceptable for the very first question, because that IS the name given to a sequence of Amino acids. And in every past paper I have done with a question like that, they accept 'polypeptide' ...
    I put polypeptide, so did lots of other people so I'm sure it will be okay
 
 
 
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