Prelab
Analyze the table below filled with data. The abbreviation Rxn = reaction
Seliwanoff Benedict's Biuret Sudan III Emulsion Water
Test Soluble?
A Red Orange No Rxn Two Negative Yes
Color Color layers
B Blue color Blue color Very Two Negative Slightly
Purple layers
C Blue color Blue color Blue Red Positive No
color globules
C Blue color Blue color Very Two Negative Yes
Purple layers
1. "A" is most likely a:
protein carbohydrate fat
If you answered carbohydrate, is it a ketose or aldose? (circle answer)
If you answered carbohydrate, is it a reducing sugar? Yes or No (circle)
2. "B" is most likely a:
protein carbohydrate fat
If you answered carbohydrate, is it a ketose or aldose? (circle answer)
If you answered carbohydrate, is it a reducing sugar? Yes or No (circle)
3. "C" is most likely a:
protein carbohydrate fat
If you answered carbohydrate, is it a ketose or aldose? (circle answer)
If you answered carbohydrate, is it a reducing sugar? Yes or No (circle)
