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IB Biology IA

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Hi. I am doing my first IA but I am having lots of difficulties..... My research question is How do different levels of pH (level 2 and 9) affect the activity of amylase?. However, my school is not providing amylase so what is the easiest way to get amylase for the experiment? and how do I have to write variables and personal engagement?

Edited by Misoooooooooongyang

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If the school does not provide amylase, try to change the research question to "yeast enzymes". You can buy yeast anywhere and you can even change the concentration of your yeast suspension.

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Amylase is present in the saliva of humans ........

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