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AQA BIOL1 Biology Unit 1 Exam - 16th May 2011 watch

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  • View Poll Results: Are you resitting this unit?
    YES!
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    (Original post by SpecialApple)
    NOT HAVING A GO HERE but their objective is not the 'catch you out'. Their objective is to differentiate the candidates who have done proper hardcore revision and know all the info and how to apply it from the candidates who just skimmed over the subjects. In all honesty though, I have for suuuure failed this!
    If they are not there to catch you out why do they ask such vague questions then have such precise mark schemes? Why do they not bother to mark the exam papers properly? Why is it that for the same question on different papers you need different answers? They are SUPPOSE to differentiate but they do a **** job.
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    (Original post by xkate1019x)
    what did everyone write for the atheroma question?
    i wrote about how it's a build up of cholesterol in the artery wall and how it can lead to a blockage which leads to higher blood pressure and stops oxygen reaching the heart via the corany artery and this causes a heart attack
    not sure if thats right though
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    (Original post by Steerforth)
    yes that will get you 2 marks if qualified with a back up statement.
    Whats the max i can get if talking about villi, as i wrote everything in nelson thornas book about it

    increas surface area for diffusion
    thin walled - reduce distance over which diffusion takes placerich with netweork of blood capillies - as they are supplied with it - so blood carries away absorbed glucose molecules - maintain diffusion gradient
    can move - maintain diffusion gradient
    then about microvilli.

    |: please give me some hope
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    (Original post by Philhope)
    wasnt 1.4 haha it asked for average
    1.4 / 3 is the average...
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    ngl this thread will depress me so i'm not even gonna look at the answers, it's done now 8-)
    ugh need to revise for Chemistry nowww!
    thought the exam was really good though 8-)
    awkward moment im on the last page and there's 30 minutes left of the exam :/
    okieeees byee! hope it went well
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    i wrote buffered zone instead of buffered solution! does that even matter?
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    (Original post by lemar)
    isit allright to talk about carrier proteins and protein channel for the 6 mark question
    Yeah did you link it to active transport and mitochondria?
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    (Original post by crazycake93)
    85.7 beats per minute, you cant round up, since there aren't half heart beats. 85 sucessfull heartbeats were completed.
    oh ****.
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    (Original post by anam.choudhry)
    i wrote about how it's a build up of cholesterol in the artery wall and how it can lead to a blockage which leads to higher blood pressure and stops oxygen reaching the heart via the corany artery and this causes a heart attack
    not sure if thats right though
    i wrote about how it narrows the atery due to cholesterol/fatty deposit. but then i talked about thrombosis and anurisms... i think this is wrong.
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    (Original post by Limitless)
    Yeah did you link it to active transport and mitochondria?
    no not realy do i get even one mark for mentioning it
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    (Original post by yash121)
    i wrote buffered zone instead of buffered solution! does that even matter?
    What question is this exactly? I don't seem to remember it.

    Doing this for the second time now, so let's hope it isn't too bad.
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    (Original post by EffKayy)
    Whats the max i can get if talking about villi, as i wrote everything in nelson thornas book about it

    increas surface area for diffusion
    thin walled - reduce distance over which diffusion takes placerich with netweork of blood capillies - as they are supplied with it - so blood carries away absorbed glucose molecules - maintain diffusion gradient
    can move - maintain diffusion gradient
    then about microvilli.

    |: please give me some hope
    I'm afraid talking about villi will get you nothing, as that is not how the CELL is specialised, but how the intestine is specialised. Otherwise that sounds like a 4/5 out of 6 answer.
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    (Original post by EffKayy)
    SAME! I was like "lets do this..."
    at the end: well that was a disaster.
    June 2010 was much easier? Please agree!
    The calculations were very difficult and lost all 3 marks there. Nothing written about carrier proteins for the last one, just villi and microvilli. nothing about mitochondria :'( forgot that.
    Also forgot that the vaccine can attack the heart muscle thingi :'(
    I was proper up for it like yeahhhh let's kick some ass!
    No you're right about that, I only did June 2010 as a practice paper but I did think it was significantly easier than todays'. Yep same definitely lost some marks on calcs I didn't write anything about mitochondria but I wrote about carrier proteins and villi/microvilli giving large s/a etc etc, and I put about the vaccine having potential to destroy the heart muscle lol :P Never mind what I put though, At the end of the day this is only an exam, we still have unit 2 which is worth 25 more marks (which I will still fail, btw :P) and it's not a matter of life or death, you're not dying, you mum and dad will still love you and your friends/boyfriend/girlfriend will still love you even if you get the lowest U ever.. and theres always another re-sit. I think the more times you re-sit the easier it gets so BRING ON MY 3RD SITTING OF UNIT 1 wooooo! hehe
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    (Original post by yash121)
    i wrote buffered zone instead of buffered solution! does that even matter?
    Never even heard of a buffered zone. Better hope you have handwriting that makes zone look like solution.
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    (Original post by Scaudwell)
    What question is this exactly? I don't seem to remember it.

    Doing this for the second time now, so let's hope it isn't too bad.
    The pH onee!!
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    (Original post by lemar)
    no not realy do i get even one mark for mentioning it
    I think you probably get one mark.
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    for the atheroma guys, u say faty deposits in wallf of atery culd lead to thrombosis, so reduced supply of o2 reaching heart, less repsiration or atp provided so heart attack lol
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    (Original post by Steerforth)
    I'm afraid talking about villi will get you nothing, as that is not how the CELL is specialised, but how the intestine is specialised. Otherwise that sounds like a 4/5 out of 6 answer.
    Heres the para in the book

    Vili are located in the blahblah. They are part of a SPECIALISED exchange surface adapted for the absorption of the products such as glucose. They increase efficency of absorption by:

    and the points.

    So ? so confused
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    (Original post by yash121)
    The pH onee!!
    In terms of what? There are many aspects of Biology to do with pH, brah.
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    (Original post by ??????????????????)
    Never even heard of a buffered zone. Better hope you have handwriting that makes zone look like solution.
    I wrote solution crossed it out! I thought i read zone somewhere lol! ahh only one mark! :P
 
 
 
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