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    I have a mock tomorrow and need a few points on some things. I wasn't there for the actual practical (which was yesterday) so I need a few points to write about.

    The class done a practical on the effect of temperature on trypsin. I need help with these specific areas:

    1. How was it a fair test?
    2. How the data may be unreliable? - I wrote human error for the reading of the time. I'm not sure if that is correct.
    3. Controlled variables?
    4. How to keep it constant

    I'd really appreciate it if people can help, thanks.
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    3. pH, concentration of enzyme, concentration of substrate
    4. By using a buffer solution and making sure that the concentration of enzyme and substrate is the same in each repetition.
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    1. Basically, by keeping everything else the same. So it'll be things like always using the same volume, keeping concentrations the same, using the same set uo using objective measures of enzyme activity

    2. Don't write human error. Human error means a bad experiment. Unreliable means data that don't agree with each other - regardless of whether they are accurate (right or not). So data will be unreliable if you can't measure them with sufficient stringency.
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    Thank you
 
 
 
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