LCQ4
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10 Terms
What is the disaccharide composition?
Two monosaccharides, sharing same molecular formula when composed of simple monosaccharide residues
Qualitative test
Indicate whether/not a substance is present
Quantitative test
allows you to determine how much of a substance is present
What is the negative control when testing for each of these macromolecules?
dH2O
What is a negative control meant to show?
Verifies how test result appears in absence of particular molecule which test is designed to identify
What is a positive control?
A test on a substance expected to give a positive reaction
Why use a positive control?
Shows how a positive result appears, but also indicates something has gone wrong, if positive control does not display expected results/
What test is used to indicate the presence of lipids?
Sudan Test
What test is used to indicate the presence of proteins?
Biuret test
It takes 5 drops of a 0.50% ascorbic acid solution to decolorize 10 ml of DCPIP. It takes 10 drops of lemon juice to decolorize the same amount of DCPIP. What is the ascorbic acid content of the lemon juice?
0.25%