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    Name:  yeoooo.png
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Size:  23.2 KBthe answer to b ii) is L but I am not sure way

    would someone mind explaining? thanks
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    (Original post by upthegunners)
    Name:  yeoooo.png
Views: 191
Size:  23.2 KBthe answer to b ii) is L but I am not sure way

    would someone mind explaining? thanks
    What's the point of a control in scientific experiment?
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    (Original post by Hype en Ecosse)
    What's the point of a control in scientific experiment?
    Why have they not included the LDH enzyme in the control? Shouldnt it be lactate, water and LDH at all temperatures as opposed to lactate and water at all temperatures?
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    (Original post by Hype en Ecosse)
    What's the point of a control in scientific experiment?
    I am not sure how exactly to explain it :lol:
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    (Original post by JamesNeedHelp2)
    Why have they not included the LDH enzyme in the control? Shouldnt it be lactate, water and LDH at all temperatures as opposed to lactate and water at all temperatures?
    What would we learn by having LDH as part of the control? We're investigating the effect of LDH species on reaction rate; by excluding it as a controlled variable, but keeping all other factors the same, we can ensure that the LDH species is a determinant of reaction rate, as opposed to something like temperature, substrate or solute concentration in the water affecting our results.

    Edit: Sorry! I realised I haven't entirely answered your question.
    Ideally, we'd like to control for LDH concentration, yes, but that's not one of the options, and the ones that do involve LDH simply don't contribute anything to the experimental design. Controlling one species of LDH at one temperature, or two species of boiled LDH don't really tell us anything about the reaction rates of different LDH species.
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    (Original post by Hype en Ecosse)
    What would we learn by having LDH as part of the control? We're investigating the effect of LDH species on reaction rate; by excluding it as a controlled variable, but keeping all other factors the same, we can ensure that the LDH species is a determinant of reaction rate, as opposed to something like temperature, substrate or solute concentration in the water affecting our results.

    Edit: Sorry! I realised I haven't entirely answered your question.
    Ideally, we'd like to control for LDH concentration, yes, but that's not one of the options, and the ones that do involve LDH simply don't contribute anything to the experimental design. Controlling one species of LDH at one temperature, or two species of boiled LDH don't really tell us anything about the reaction rates of different LDH species.
    That makes a lot of sense- thanks!

    So I have after all been legitimately schooled.

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    (Original post by upthegunners)
    I am not sure how exactly to explain it :lol:
    Read this: http://www.thestudentroom.co.uk/showthread.php?t=879371
 
 
 
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