AQA Biology AS New Spec - 26th May and 7th June

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    (Original post by AdimG)
    Same here for both except I got a ratio of 4:1 which is still pretty much the same😄Seems not many others did tho so I don't know if that's correct
    Yeah, I'm not convinced 😂
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    (Original post by Jumay)
    The 40% disinfectant confused me a little what did everyone get for that??
    Overlap between killed regions coz too many killed with a higher concentration?
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    I had no idea for that phosphate question - I put that the phosphate group had oxygen so therefore more rapid respiration for the growth of the plant, and also due to the instability of the phosphate group they have low activation energy so therefore didnt require a lot of energy to break, so therefore energy was released for rapid growth
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    (Original post by chrisdale98)
    Overlap between killed regions coz too many killed with a higher concentration?
    I put that down. No idea if that is right though
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    (Original post by chrisdale98)
    Overlap between killed regions coz too many killed with a higher concentration?
    I said that, as the zones would merge.
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    (Original post by Jumay)
    The 40% disinfectant confused me a little what did everyone get for that??
    I put so the bacteria doesn't become resistant? Is that a valid point?
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    (Original post by sgill23)
    I didn't like that paper, it started off well but just got worse. Am I the only one who thinks it?
    Totally agree. They were slighly off topic
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    (Original post by yas28)
    I put so the bacteria doesn't become resistant? Is that a valid point?
    I put that
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    I wrote that with an increase of phosphate more ATP and cell membranes (phospholipid bilayer) can be synthesized, atp energy release for active processes so faster growth and more cell membranes equals more cells
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    Why did the sample need to be thin?
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    Some answers I put:
    HIV one I put low case of hiv infection and low deaths from hiv
    Phosphate one I though it said use graph to show there is a link between phosphate and embryo growth so I just used data from the table at each temperature.
    For FEV I put: make sure each didn't breath in or breathed in as much as they can wen finding Feb
    Also used same age etc people
    25 year olds used to compare and mean calculated for reliability
    Elastic tissue in lungs weaken above 30 year olds so they cannot take in air as mch

    How many marks was the what is the clear zone caused by? And also why shouldn't above 40% be used?
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    I got for the ratio 1:3.64 seeing as it was 1.1:4 but you have to simplify so that it is 1:x.
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    (Original post by Luchamb)
    Why did the sample need to be thin?
    So as much light can pass through for a clear image as optical microscopes use light? I don't know if that will score 2 marks though.
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    (Original post by Luchamb)
    Why did the sample need to be thin?
    To allow light to pass through I think?
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    (Original post by Luchamb)
    Why did the sample need to be thin?
    i said so the short wavelength can pass through and so you could see the snall stomata. I completely guessed that question!
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    (Original post by chelseaoscar15)
    Weird how nothing or meiosis, mitosis, selection, heart, species + taxonomy, breathign mechanisms came up in either paper.

    What did you guys put for the process used in the worm to get oxygen.
    I was so annoyed that they didn't come up or protein-synthesis or DNA replication
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    (Original post by Luchamb)
    Why did the sample need to be thin?
    I wrote that its one cell thick so that the light can pass through the specimen
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    (Original post by maddie001)
    I got for the ratio 1:3.64 seeing as it was 1.1:4 but you have to simplify so that it is 1:x.
    Yeah I did this too, but rounded to 3.6.
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    Does anyone have any predictions for grade boundaries?
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    (Original post by yas28)
    Does anyone have any predictions for grade boundaries?
    hopefully like 60% for an A probably not though
 
 
 
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