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    Anybody taking Edexcel Biology IAL Unit 3 in jan 2018?
    exam is in few days, any tips?
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    Yeah me, what do you think is going to come?
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    Hi, I am thinking enzyme activity or Cell memebrane
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    I could only find 1 pastpaper for enzymatic activity from JAN 2009 and until now!
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    enzymes came 2 times in jan 2015 and june 2010
    i think it would be either cell membrane or enzymes or maybe mineral deficiency as well i don't know.
    Also do you guys have any summarised notes to study from?
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    can someone explain the answer to c (ii) in question 2 in nov 2017?
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    (Original post by farida145)
    can someone explain the answer to c (ii) in question 2 in nov 2017?
    not sure of it either but i think you should first draw a vertical line at age 22 and stop where it crosses the mean curve.

    then draw a horizontal line (make sure it's very accurate ) along the length of the whole graph. the horizontal line will cross two points of the 1 and -1 standard deviation.
    then draw two vertical line down at the point where the horizontal line Crosses and obtain the age range.

    I guess this is what i kinda understood. hope it helps.
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    how do you draw standard deviations? is it according to the scale on the graph or?
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    •The SDS can be used to draw error bars where the SD value is subtracted and added to the mean value. To scale Y-axis, the lowest value is the lowest mean minus its SD and the highest value is the highest mean plus its SD.
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    guys what about totipotency and root tip? never seen any past paper with it lmao.
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    oct 2016 I think
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    (Original post by colourlessness)
    not sure of it either but i think you should first draw a vertical line at age 22 and stop where it crosses the mean curve.

    then draw a horizontal line (make sure it's very accurate ) along the length of the whole graph. the horizontal line will cross two points of the 1 and -1 standard deviation.
    then draw two vertical line down at the point where the horizontal line Crosses and obtain the age range.

    I guess this is what i kinda understood. hope it helps.
    thank you so much
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    (Original post by colourlessness)
    how do you draw standard deviations? is it according to the scale on the graph or?
    yes you plot them according to the scale of the Y axis and it doesn't have to be that accurate
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    (Original post by darmes)
    guys what about totipotency and root tip? never seen any past paper with it lmao.
    no both came in the recent exams june 2017 and nov 2016
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    (Original post by unknown2914)
    •The SDS can be used to draw error bars where the SD value is subtracted and added to the mean value. To scale Y-axis, the lowest value is the lowest mean minus its SD and the highest value is the highest mean plus its SD.
    thankks!
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    Anyone finished please share answers ...
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    (Original post by WOLFO_Ooo)
    Anyone finished please share answers ...
    WHat was the answer for the cost difference of using aspirin and statins?
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    (Original post by Osh0711)
    WHat was the answer for the cost difference of using aspirin and statins?
    i think it was 224.49
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    how did you find the exam guys?
    i thought it was easy
    but how did you solve the question asking about the manipulated data in paragraph 7?
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    (Original post by farida145)
    i think it was 224.49
    thank god
 
 
 
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