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OCR Biology F215 Control, Genomes and Environment Fri 15 June 2012

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    (Original post by andrewpeters)
    Anyone else resitting F214, that paper was awful! Even worse is that I don't have any UMS to fall back on from last year as I got an A exactly.
    so dude
    how did it go?
    get an offer?
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    (Original post by im so fresh)
    so dude
    how did it go?
    get an offer?
    No offers yet. I'm waiting on Brighton as my last resort, have been put on hold.
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    (Original post by yukiko)
    Does anyone know if you have to learn about how the calcium ions allow muscle contraction for the sliding filament model??
    Yes. Calcium ions bind with troponin molecules, causing troponin and tropomyosin to move from normal position on actin filament therefore unblock binding sites / allow the exposure of binding sites for myosin heads to bind with actin - forming an actin-myosin crossbridge.
    Think that's all we need to know.
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    (Original post by andrewpeters)
    No offers yet. I'm waiting on Brighton as my last resort, have been put on hold.
    best of luck.
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    (Original post by vasu93)
    i was wondering what 'downstream process' means and what happen there?
    The term 'downstream process(es)' simply refers to what that occur in the next stage(s) of an industrial process.

    I presume you are talking about the spread on industrial enzymes?

    To make it clearer I will give you an example that is not related to enzymes:

    Making a T-shirt


    Material is dyed --> Material is cut --> Sleeves attached --> Logo is printed --> Labels attached --> Packaged.

    the processes that are downstream of cutting the material are: --> Sleeves attached --> Logo is printed --> Labels attached --> Packaged.

    Now apply the same principle to a process involving industrial use of enzymes.

    Hope that helped (:
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    (Original post by andrewpeters)
    Anyone else resitting F214, that paper was awful! Even worse is that I don't have any UMS to fall back on from last year as I got an A exactly.
    tell me about it :/ thought it was easy during the exam..but then results showed something else ): resitting definitely
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    the past papers of this exam look scary ):
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    Explain why the bacteria have carboxylase enzymes?
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    Hi F215 people!
    At school we got given a revision disc with loads of past questions (from the previous specification) that are relevant to this course.

    I've uploaded them to Google Docs, and they should be viewable from the below link:

    https://docs.google.com/open?id=0By8...U5EN2RDcmtBU2s

    This includes questions for F211, F212, F214 and F215
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    (Original post by a123)
    Explain why the bacteria have carboxylase enzymes?
    Anaerobic respiration
    I think maybe so they can convert ethanal back to pyruvate when oxygen becomes available. This pyruvate can enter the link reaction (joins acetyl CoA). Acetyl CoA enters Krebs cycle and NADH and FADH allows oxidative phosphorylation to take place, generating more ATP.

    This maybe a synoptic question. I don't know if this is right.
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    (Original post by beanstalkgirl_24)
    Hi F215 people!
    At school we got given a revision disc with loads of past questions (from the previous specification) that are relevant to this course.

    I've uploaded them to Google Docs, and they should be viewable from the below link:

    https://docs.google.com/open?id=0By8...U5EN2RDcmtBU2s

    This includes questions for F211, F212, F214 and F215

    Please +ve rep if this has been helpful!
    Thanks a lot!

    I was thinking maybe we could collectively come up with a big list of all the possible experiment questions that might come up in F215? So that none of us get caught out on some stupid "glass bead" type questions again
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    (Original post by beanstalkgirl_24)
    Hi F215 people!
    At school we got given a revision disc with loads of past questions (from the previous specification) that are relevant to this course.

    I've uploaded them to Google Docs, and they should be viewable from the below link:

    https://docs.google.com/open?id=0By8...U5EN2RDcmtBU2s

    This includes questions for F211, F212, F214 and F215
    cannot thank you enough - this is a fantastic resource!!! i've just downloaded all the files from f214 and f215! THANK YOU
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    (Original post by Lalaa)
    WOW! that exactly what i got! and im retaking F211 in june!
    Coincidences nowadaihs! I have not started F211 at all.... wbu?
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    (Original post by beanstalkgirl_24)
    Hi F215 people!
    At school we got given a revision disc with loads of past questions (from the previous specification) that are relevant to this course.

    I've uploaded them to Google Docs, and they should be viewable from the below link:

    https://docs.google.com/open?id=0By8...U5EN2RDcmtBU2s

    This includes questions for F211, F212, F214 and F215

    Please +ve rep if this has been helpful!
    You are ahmazing!! :awesome: Thank you! +rep
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    (Original post by beanstalkgirl_24)
    Hi F215 people!
    At school we got given a revision disc with loads of past questions (from the previous specification) that are relevant to this course.

    I've uploaded them to Google Docs, and they should be viewable from the below link:

    https://docs.google.com/open?id=0By8...U5EN2RDcmtBU2s

    This includes questions for F211, F212, F214 and F215

    Please +ve rep if this has been helpful!
    This is amazing, what my teachers give me are only past exam questions from the new spec.

    (Original post by CGB)
    Thanks a lot!

    I was thinking maybe we could collectively come up with a big list of all the possible experiment questions that might come up in F215? So that none of us get caught out on some stupid "glass bead" type questions again
    I have already started a list on what came up and what hasn't came up in the F214 and F215 exams from the specification.
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    hey I was just wondering how most of you are revising for this exam?
    For f214 I just made notes from the Ocr textbook and tried to memorise them and completely failed :/. But doing this 'technique' at As level i got C's (not amazing I know but I only need a C). But, I would like a B in this and f214 to hopefully take my overall grade upto a B with the hope I done well on my practicals.

    so yeah.... and I have just started my notes for f215 recently, am I starting too late to achieve a grade B? But my notes for f214 are already done. Any help appreciated thanks
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    Was just wondering in the OCR exams, for biology/chemistry is it possible to lose marks on questions if you mention wrong points despite mentioning all the correct points?

    For example, a ordinary 3 marker - You mention all correct three points but then mention an extra point that may not correct. Would I be penalised for this and get 2/3 instead of 3/3? I ask this question because, I notice myself losing marks on questions whenever I add too many points, and feel like I may have added something which may not have been accurate.

    I know that if it asks for three points, you are only allowed to give three points, but this is for general questions.

    Also, is there some sort of way of contacting OCR as I have a few other questions about the specification, specifically about the 'synoptic questions' and the 'how science works' questions.
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    (Original post by beanstalkgirl_24)
    Hi F215 people!
    At school we got given a revision disc with loads of past questions (from the previous specification) that are relevant to this course.

    I've uploaded them to Google Docs, and they should be viewable from the below link:

    https://docs.google.com/open?id=0By8...U5EN2RDcmtBU2s

    This includes questions for F211, F212, F214 and F215
    Thats Great Thanks for sharing!!
    How come I can't download them as folders like folder one is Cellular Control?
    Do I have to download them one by one?
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    (Original post by S_Azizi)
    Was just wondering in the OCR exams, for biology/chemistry is it possible to lose marks on questions if you mention wrong points despite mentioning all the correct points?

    For example, a ordinary 3 marker - You mention all correct three points but then mention an extra point that may not correct. Would I be penalised for this and get 2/3 instead of 3/3? I ask this question because, I notice myself losing marks on questions whenever I add too many points, and feel like I may have added something which may not have been accurate.

    I know that if it asks for three points, you are only allowed to give three points, but this is for general questions.

    Also, is there some sort of way of contacting OCR as I have a few other questions about the specification, specifically about the 'synoptic questions' and the 'how science works' questions.
    Yeh contact OCR and please let us know what they say!:rolleyes: the least is you get 10-12 reps !
    But I tell you that if you put a point where in MS says R (your answer) you lose a mark for it !
    say its in a table and you got to put only one word and you put two one of them is wrong you dont get the mark! I am talking from the past experience !
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    (Original post by arvin_infinity)
    Yeh contact OCR and please let us know what they say!:rolleyes: the least is you get 10-12 reps !
    But I tell you that if you put a point where in MS says R (your answer) you lose a mark for it !
    say its in a table and you got to put only one word and you put two one of them is wrong you dont get the mark! I am talking from the past experience !
    Only problem is, trying to get contact with them. People have told me they're really unresponsive.

    Going to ring them now, to see what they say.

    Edit: Rang them, they said they're not able to speak to candidates regarding how exams are marked. I'll need to get my teacher to ring in.

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Updated: October 9, 2012
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