bio lab

Classified in Chemistry

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I g of carbs 4 kal | proteins 4 kal | fat 9 kal
- benedicts test for glucose : light blue - green through red +  
- Iodine test for starch: orange - dark blue +
- Biuret test for protein: light blue - purple +
- Sudan IV test for lipids: pale pink - red/pink +

Positive standard: is a  standard that we know that has a certain compound so we look at the color reaction and tell us what to expect. So we know the substance if interest is known to be present in the test run

Negative standard: we know that the substance of interest is absent in our test run

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