Asked by Andy Blackwell in Uncategorized
What compound tested positive when tested with the biuret reagent?
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Asked in Science
Does protein turn a blackish blue color when being tested?
Asked in Science
If an unknown sample is tested with both biuret reagent and benedict's reagent Both tests result in a blue color What has been learned Why are these called negative results?
If an unknown sample is tested with both biuret reagent and Benedict reagent both tests result in a blue color what has been learned why are these called negative results?
That the unknown sample is not a monosaccharide and is does not contain peptide bonds (is not a protein). This is because they both produced negative results because Biuret tests positive in solutions that contain peptide bonds and will turn a violet color. Benedict reagent reacts to monosaccharides and will turn green-reddish orange when a monosaccharide is present. Neither of these things happened so the results are negative.
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