Late Nite Lab Essay

387 words - 2 pages

10/23/2015

Late Nite Labs

Experiment­Specific Questions
Experiment 1: Monosaccharide Test
1.  Fill in the table below with the results from the monosaccharide test experiment, and your conclusions based on those 
results.
Results Monosaccharide Test
Solution

Initial Color

Color with Benedict's Solution

Color After Heating

Monosaccharide?

glucose solution

 

 

 

 

water

 

 

 

 

sucrose solution

 

 

 

 

fructose solution

 

 

 

 

2.  Benedict’s solution is added to white grape juice and heated. The color changes from blue to orange. Based on this result, 
what biological molecules are present in the white grape juice?
 
...view middle of the document...

  Iodine solution is added to a chocolate chip cookie solution. The color changes to purple. Based on this result, what 
biological molecules are present in the chocolate chip cookie solution?
 
3.  What is the relationship between monosaccharides and starches?
 

Experiment 3: Lipid Test
1.  Fill in the table below with the results from the lipids test experiment.
Results Lipids Test
Solution

Initial Color

Color with Sudan Solution

corn Oil

 

 

water

 

 

2.  What results would you expect from a sudan test of chicken soup?
 
3.  What is the size difference between fat polymers and starch and protein polymers?
 

Experiment 4: Protein Test
1.  Fill in the table below with the results from the protein and peptides test experiment..
Results Protein and Peptides Test
Solution

Initial Color

Color with Biuret Solution

egg albumin solution

 

 

water

 

 

2.  What results would you expect from a biuret test of chicken soup?
 

Experiment 5: Food Contents Test
https://labs.latenitelabs.com/api/assessment/shortAnswer/99299/52938

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10/23/2015

Late Nite Labs

1.  Fill in the table below with the results from the food experiment.
Results Food Test
Food

Reducing sugars

Starch

Lipids

Protein

potato juice

 

 

 

 

onion juice

 

 

 

 

whole milk

 

 

 

 

skim milk

 

 

 

 

2.  Although we consider it non­fat, skim milk actually has very low levels of lipids. Therefore, it should test positive with Sudan 
solution. Why is the Sudan test for skim milk negative?
 

https://labs.latenitelabs.com/api/assessment/shortAnswer/99299/52938

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