3. Compare the Biuret test results of albumin and pepsin, the Benedicts, and starch results for potatoes and onions, and describe how one can determine the relative amounts of sugars present in a sample using the Benedicts test.…
4. Name, describe, and interpret the findings of diagnostic tests used to assess the ability to digest lactose.…
4. The Sudan III test has been performed for you. Please see the image below to answer question 4a-g: Were the following substances positive or negative for lipids, as indicated by the Sudan III test? (7 points)…
The objective of the Reducing Sugar Test was to test if the substance has a reducing sugar in it by adding Benedict’s solution and heating it, there would be a color change if a reducing sugar is present, or it will remain blue (no reducing sugar). The objective of the Starch test was to test for starch in substances by using Iodine. The iodine will cause a substance to turn to a dark blue color if it is positive for starch. The objective for the Grease Spot Test was to test if the substance had a lipid. A positive reaction would make a translucent grease mark on a brown paper bag. The objective for the Dye test was to test for lipids. When mixed with water and the tested substance, a positive result will occur in it being separated from the water. The objective of the Protein Test was to test for proteins present in a substance using the Biuret Solution. The substance should produce a violet color within 10 drops of Biuret. The objectives of the Spit Lab were to test for starch, a reducing sugar, and effect of amylase on a cracker that is positive for starch and negative for a reducing sugar. Iodine would test if starch was present if the cracker solution changes to a dark black/blue color. Benedict’s Solution mixed with the cracker and heated would test for a reducing sugar (if reducing sugar, it will turn from a green to an orange to a dark brownish color). The amylase was tested on a Triscuit cracker by heating it in Benedict’s Solution, the amount would make it either a green, or orange, and the most amounts would make it brown as mine and my partner’s results.…
The iodine test was used to test for starch and glycogen in a particular solution. If the result turned out to be neither a blue-black or reddish-brown colour, it would be considered a negative result. If it turned blue-black, starch was…
How could you use Descartes' rule and the Fundamental Theorem of Algebra to predict the number of complex roots to a polynomial as well as find the number of possible positive and negative real roots to a polynomial? |…
3. Collect three food labels and, from the nutritional information on these labels, explain whether the foods are high, low or neither in terms of fat, sugar and salt content.…
Complete Table 2 and answer Post Lab Questions 1 through 4 in complete sentences on the Week Three Lab Reporting Form.…
Identify the functional groups for each of the biomolecules that react in the following biochemical tests: Benedict’s test, Iodine test, Brown Bag test, Sudan III/IV test, and the Biuret's Test.…
3. List any of the food samples that tested positive for more than one type of…
This table records the observations made about the physical appearance of all chemicals used in this experiment.…
If there is starch in the substance, the colour changes to a dark brown when drops of iodine solution are added to it. Starch is the only solution that exhibits a major change (dark brown) that is different from the other solutions (orange colour) when iodine is added. It can therefore be inferred that a positive test for starch macromolecules occurs when the solution turns dark brown when Iodine solution is added.…
The test tube was heated for 5-6 minutes. After 2 minutes of making sure it was nothing was going to change after heating, it was clear that there was no change had occurred with the benedict’s solution. The benedicts solution stayed a light blue color when added to the strong starch solution, and continued to stay the same color after heated. This indicates no simple sugars present.…
The amount of starch in the bananas can be compared by performing the iodine test and finding the intensity of dark blue colour in each sample .…
Hypothesis F3: If you add Biuret’s solution to the patient’s urine sample, then it will change color, meaning a protein, or child, is present.…