If the mystery food sample contained the nutrient, then it would change to the same color as the indicator.✔ positive control.negative control.
Justify your answer.
The mystery food sample did test positive for Sudan red. Nicole ate salad dressing, which contains fat, a lipid. She is the likely culprit.
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In this lab, the only test that turned out positive was for proteins.lipids.polysaccharides.X monosaccharides.
Based on the data, was Zack, who ate the tofu, guilty of leaving a mess in the classroom? yes✔ no
Based on the data you collected, who likely left the the classroom mess? Zack✔ NicoleChristianAbigail
What is the name of the glass container above that you used to heat water?
The data above indicate an error. How do you know? What might have caused the error?
The data indicate an error because water is used as a negative control and should not test positive for protein (it should remain blue). The pink/purple result suggests that either the water sample was contaminated with protein, the test tube was dirty, or the sample was mislabeled.
Which possible errors did you include in your response? Check all that apply.
To determine if the substance in the first test tube above is indeed a meat, you could also test it using ✔ Biuret solution.Lugol's solution.Benedict's solution.Sudan red.
Why was a beaker used for heating the solution?
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