Essays Tagged: "Biuret test"
Testing for Macromolecules
ctions of sample substances to indicatorsSAMPLEBenedict's solution + heatIodine solutionFilter paperBiuret reagent1.protein solutionPurpleNo changeDried upPurple2.vegetable oilNo changeNo changePaper ... dine test was for the presence of starch, filter paper was for the presence of fatty acids, and the Biuret test was for amino groups present in proteins. Benedict's solution was used to test for the p ...
Subjects: Science Essays > Biology
Classification of Macromolecules
tained macromolecules, specifically; carbohydrates, proteins, or vitamin C. The tests used were the Biuret test, the xanthoproteic test, the Benedict's test, the starch test, and the indophenol test. ... that ascorbic acid and orange juice would test positive for vitamin C. To test for carbohydrates, a Biuret test and a starch test were conducted on each substance. To test for proteins, a Benedict's t ...
Subjects: Science Essays > Biology
Testing for Macromolecules
ed in the first procedure.9. 5 drops of NaOH and 5 drops of CuSO4 were added to each test tube. The Biuret reagent was made by the mixing of two chemicals.10. The reaction with Biuret reagent was obse ... samples.During the lab, I have noticed that the protein solution reacted most dramatically with the Biuret reagent. When adding drops of Biuret reagent to other samples, they all turned blue, some wit ...
Subjects: Science Essays > Biology
The Use Of Positive And Negative Controls To Determine The Macromolecules Present In An Unknown Solution
of the blue solution, ranging from yellow-green to red-brown (Hequet and Abidi, 2006). Lastly, the Biuret solution was used to test for the presence of protein. It is a mixture of copper sulfate and ... tion and heated for approximately five minutes to determine if reducing sugars are present.Table 3: Biuret test for protein SolutionPositive(+)/Negative(--)Qualitative Observations1% glucose ...
Subjects: Science Essays > Biology