Lab 3 4 suagr starch lipid

Lab 3 4 suagr starch lipid - Piper Gunderson Biology Lab...

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Piper Gunderson 6-14-2011 Biology Lab Analysis- Proteins, Starch, Sugars, Lipids In the large biological molecule lab, we tested for four different molecule compounds. Each compound has an individual test to determine the presence. We tested five different substances, each of which we had to predict what substance they were. In the first sample, sample A; we determined that it is most likely a starch solution. We were able to determine this because it showed a negative test for proteins and lipids. It did however show a positive test for glucose and starch. We were able to predict that it was a starch rather than sugar solution because sugar is made of glucose, which is what the Benedict’s reagent tested for, and glucose, is the broken down molecules from starch. We noticed in the glucose test that the positive result was minimal and only the bottom was orange rather than the entire solution. This is because the starch may have begun to break down although it was probably not completely broken down
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Lab 3 4 suagr starch lipid - Piper Gunderson Biology Lab...

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