Enzyme/ PH Lab On Lactase

Field: Biology

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I have a final lab due. For my lab I wanted to test the effects of pH on lactase. For the experiment I placed a different substance into 5 different test tubes. The pH value ranged from 3-13. I then placed milk into each test tube, along with lactase powder. For my results, my glucose test strips did not work and I don’t have time to order new ones. I just need to know the glucose color of each test tube (on the strip) and the correlating glucose concentration. The 5 substances were vinegar, coffee, water, dish soap, and bleach.