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    (Original post by Rebecca0184)
    on the question about fats in the digestive system, i completely forgot to put anything about bile, but i put about lipase being broken into fatty acids and glycerol and it being released by the pancreas and small intestine. how many marks will i have?
    The question did state that you should mention chemicals involved. If you gave good points in the use of enzymes (and mentioned lipase), I suppose you could get around a 4.
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    (Original post by Shad-A)
    What enzymes did you guys mention for the 6 marker?
    I talked about all the information involving enzymes lipase, amylase like where they are produced and what they digest. I then started talking about bile
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    (Original post by Applequestria)
    The question did state that you should mention chemicals involved. If you gave good points in the use of enzymes (and mentioned lipase), I suppose you could get around a 4.
    So what kind of points where you supposed to mention??
    Personally I talked about all the information involving the three enzymes and the reaction of bile
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    (Original post by Rawan24)
    So what kind of points where you supposed to mention??
    Personally I talked about all the information involving the three enzymes and the reaction of bile
    They'll be looking for you to mention lipase, where it's produce (pancreas and small intestine) and what it converts the fats (lipids) into (fatty acids and glycerol)

    It only asks for the digestion of fats, so mentioning amylase, carbohydrase, protease etc. will not get you any additional marks
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    (Original post by Applequestria)
    The question did state that you should mention chemicals involved. If you gave good points in the use of enzymes (and mentioned lipase), I suppose you could get around a 4.
    oops! it never came to mind! when i was counting through my paper to see how many marks i think i got, i only gave myself 3 anyway, i think i got around 44, hopefully i'll get an A!
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    (Original post by scottystreet)
    Just found some stuff about the Przewalski horse reproducing with the wild horse (http://www.ansi.okstate.edu/breeds/horses/przewalski/).
    Gametes are 32 and 33. They reproduce to form offspring with 65 chromosomes. Therefore, the answer in the exam would have been 12.
    DAMN. I got it wrong.
    It asked for the number of chromosomes not how many pairs and so you must have had to add 16 and 8... At least Id like to think so
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    I put carbon dioxide for the part b of question 1. It said state one gas as if
    to say there were two so I think it is also acceptable.


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    (Original post by Frank the Tankk)
    Well I f***ed up on the gametes question and put 8, 16 + 24...don't know why -.- but overall the paper wasn't too challenging, I'd say around 45 will be an A* and I reckon I got about 49...need to make up for my 45 (was a mid A) in chemistry so I can push for an A*. Don't you think the grade boundary for January's Chem paper where high compared to biology boundaries?:s
    i put 24 and I'm sure it's right because it didn't ask for the number if chromosomes, but for how many will there be
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    (Original post by Chloestar)
    I put carbon dioxide for the part b of question 1. It said state one gas as if
    to say there were two so I think it is also acceptable.


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    But the diffusion was from point A (which was inside the leaf) to point B (outside the leaf) so it has to be oxygen. Carbon dioxide diffuses into the leaf, oxygen diffuses out of the leaf.
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    Anyone know where I can find an unofficial mark scheme ?
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    (Original post by Elliemay97)
    Anyone know where I can find an unofficial mark scheme ?
    Someone posted one on page 9 of this thread; right at the end, but I'm sure that they got 2 questions wrong- well according to the revision guide
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    Which questions do you think are wrong? And those questions don't add up to 60?
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    (Original post by HJT513)
    Which questions do you think are wrong? And those questions don't add up to 60?
    The first question is phloem and mesophyl, DEFINITELY SURE OF IT
    Question 2d the squares are 11
    Question 5b is bile because its asking for the 'substance'
    Question 5c is enzyme Y which is acidic conditions
    Question 8d is 16+8 because its asking for the number of chromosomes in human body cell not the pairs in a sex ccellists
    It's also missing some questions which I can't remember, but who ever did the mark scheme did a good job
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    Using that unofficial mark scheme I got about 34 marks which isn't great but it's alright I guess. Pretty sure a few questions are missing on it and some answers are wrong though..


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    (Original post by Rawan24)
    The first question is phloem and mesophyl, DEFINITELY SURE OF IT
    Question 2d the squares are 11
    Question 5b is bile because its asking for the 'substance'
    Question 5c is enzyme Y which is acidic conditions
    Question 8d is 16+8 because its asking for the number of chromosomes in human body cell not the pairs in a sex ccellists
    It's also missing some questions which I can't remember, but who ever did the mark scheme did a good job
    It was enzyme X


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    (Original post by Rawan24)
    The first question is phloem and mesophyl, DEFINITELY SURE OF IT
    Question 2d the squares are 11
    Question 5b is bile because its asking for the 'substance'
    Question 5c is enzyme Y which is acidic conditions
    Question 8d is 16+8 because its asking for the number of chromosomes in human body cell not the pairs in a sex ccellists
    It's also missing some questions which I can't remember, but who ever did the mark scheme did a good job
    And it was Xylem and phloem


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    But in the revision guide it says mesophyl and phloem :L oh I don't know anymore
    at least we all can guarantee that the grade boundaries will be low
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    (Original post by Chloestar)
    And it was Xylem and phloem


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    It was hydrochloric acid not bile
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    (Original post by Rawan24)
    But in the revision guide it says mesophyl and phloem :L oh I don't know anymore
    at least we all can guarantee that the grade boundaries will be low
    Yeh haha most people at my school found it hard, think everyone on here is just really brainy:s good luck!


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    (Original post by Chloestar)
    Yeh haha most people at my school found it hard, think everyone on here is just really brainy:s good luck!


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    You tooo!
 
 
 
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