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

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    (Original post by swiftylol)
    I put the one with the largest diameter, was it not protease in the little circles, and the diameter around them how much of the plate thingy the protease digested?
    I remember adapted aswell.
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    (Original post by swiftylol)
    I put the one with the largest diameter, was it not protease in the little circles, and the diameter around them how much of the plate thingy the protease digested?
    Oh that makes sense.
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    (Original post by EffKayy)
    Hey, i know you use the NT book, so for the last question did you write all the stuff it said about Villi and Microvilli in the NT book because it has a specific link to glucose there too?! I never wrote about carrier proteins, totally forgot. woops.
    First I wrote all about the Na/K Pump and how glucose is absorbed into the blood. Then I wrote about mitochondria and why theyr are needed, microvilli and increase in SA and muscles in the villi. Not sure the muscles in the villi will get makers though :confused:
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    (Original post by ??????????????????)
    The question was about describing the trend I think. Said as pH increased rate increased.
    I also put this.. It seemed too simple!
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    (Original post by ??????????????????)
    the question was about describing the trend i think. Said as ph increased rate increased.
    wait!!!!!! Omg the question asked for the optimum ph, i didn't read that? I just described the trend?
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    (Original post by HollyL)
    Yes I talked about surface area too
    I also said that the thickness of exchange surface was very thin. Not sure it that is correct though..
    I said that too!
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    (Original post by sanaindaclub)
    First I wrote all about the Na/K Pump and how glucose is absorbed into the blood. Then I wrote about mitochondria and why theyr are needed, microvilli and increase in SA and muscles in the villi. Not sure the muscles in the villi will get makers though :confused:
    the book says stuff about increase surface area for diff, thin wall, move maintain diffusion gradient, supplied with blood vessels. I wrote all of that and some about the muscles, nothing about anything else e.g. transport How many marks wil i get
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    (Original post by HollyL)
    Yes I talked about surface area too
    I also said that the thickness of exchange surface was very thin. Not sure it that is correct though..
    I WROTE THAT! thin so faster diffusion/absorption?
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    Lol, one things for sure, im suddenly all hyped up about my unit 2 revision!
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    (Original post by HollyL)
    I also put this.. It seemed too simple!
    i thought the rate decreased with increased ph cos the circles got smaller
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    (Original post by HollyL)
    I also put this.. It seemed too simple!
    Yeah but heard of Occam razor?
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    (Original post by sanaindaclub)
    Lol, one things for sure, im suddenly all hyped up about my unit 2 revision!
    Same here
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    What did people write for the question involving Phagocytosis and how it destroyed bacteria?
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    (Original post by ??????????????????)
    Yeah but heard of Occam razor?
    Yepp
    Lets hope then!
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    (Original post by ??????????????????)
    Yeah but heard of Occam razor?
    Something about most accurate/best answers/ hypothesises being the simplest ones? Saw it on house m.d.
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    (Original post by superstressed)
    i thought the rate decreased with increased ph cos the circles got smaller
    What was the question again?
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    (Original post by Baha)
    What did people write for the question involving Phagocytosis and how it destroyed bacteria?
    Phagocytes engulf pathogen and enclose them in a phagosome
    Lysosomes in the phagosite release hydrolytic enzymes
    Which digest, break down the pathogen
    This is a non specific respose.
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    (Original post by HollyL)
    Yepp
    Lets hope then!
    But the simplest answer was the bigger one. So I don't wanna D:
    (Original post by sanaindaclub)
    Something about most accurate/best answers/ hypothesises being the simplest ones? Saw it on house m.d.
    Saw it on Scrubs
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    (Original post by EffKayy)
    I WROTE THAT! thin so faster diffusion/absorption?
    Yes that's what I put,,, More efficient diffusion/absorption
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    (Original post by Baha)
    What did people write for the question involving Phagocytosis and how it destroyed bacteria?
    1) Phagocyte attracted to pathogen via chemoattractants. Moves down a concentration gradient.
    2) Pathogen attaches to surface of phagocyte. Vesicle called phagosome forms.
    3) Lysosomes release enxymes into phagosomes
    4) Pathogen hydrolysed
    5) Breadown debris absorbed

    It was little more wafly! I hope i get the whole four marks. What do you think?
 
 
 
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