1. You test a sample with Biuret Reagent, and find a blue (not purple) color at the end of the test. What of the followi

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1 You Test A Sample With Biuret Reagent And Find A Blue Not Purple Color At The End Of The Test What Of The Followi 1 (64.11 KiB) Viewed 45 times

1. You test a sample with Biuret Reagent, and find a blue (not purple) color at the end of the test. What of the following statements is the best conclusion for this test result? a. You conclude that the sample has no starch. b. You conclude that the sample has no protein. c. You conclude that the sample has no lipid. d. You conclude that the sample has no reducing sugars. 2. To test for starch, you could use: a. Benedict's test b. Biuret test c. Sudan IV test d. Lugol's lodine test 3. If you perform a Sudan IV test, and get a red layer on top of the sample, this indicates: a. The sample has protein. b. The sample has starch. c. The sample has lipid. d. The sample is water. 4. If you test a water sample with Benedict's Reagent, which of the following is true? a. The result should appear negative. b. The result should appear positive. c. The result cannot be anticipated - that's why we are testing the water. d. The result should have a reddish orange precipitate after boiling. Lab Study Guide: Exercise 3-Microscopy/Cells