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    what are some ways to measure the rates of reaction with enzymes?
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    Change in mass (either reactants or products)
    Gas evolved using a gas syringe


    cant think of any others at the minute with enzymes
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    because proteins are likely to be soluble changes in mass wouldn't exactly be the easiest thing.
    At A level its probably gas evolved per unit time if it evolves CO2 as NinjaRikki said or if either the product or the substrate is coloured and changes colour in the course of reaction, you can measure the intensity of the colours by absorbance.
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    (Original post by Sigma5116)
    because proteins are likely to be soluble changes in mass wouldn't exactly be the easiest thing.
    At A level its probably gas evolved per unit time if it evolves CO2 as NinjaRikki said or if either the product or the substrate is coloured and changes colour in the course of reaction, you can measure the intensity of the colours by absorbance.
    ok thankyou i tried to google it but nothing came up.
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    LOOL! EMPA :d
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    (Original post by Sigma5116)
    if either the product or the substrate is coloured and changes colour in the course of reaction, you can measure the intensity of the colours by absorbance.
    i would use this, e.g. add enzyme to starch and also add iodine, percentage of starch remaining in solution can be determined by the amount of light absorbed.
 
 
 
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