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What particular part of protein molecule positively reacts with biuret test?
Wiki User
∙ 10y ago
amino acid
Wiki User
∙ 10y ago
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What is the purpose of doing the biuret test with water?
the test is to determine if the substance you are testing has protein in it
What is indication of violet color in biuret test of enzymes?
The presence of protein.
How do you test for protein in food?
Use Biuret reagent.
How many of these chemical groupings must be present in a molecule to give a positive biuret test?
you should have at least 2 of these,to obtain a positive result in Biuret's test. because biuret test is a test used to detect if there is peptide linkages.
Is biuret test suitable to test the presence of proteins in the urine?
Yes, the biuret test will indicate the presence of peptides. If it turns violet, it is a positive result.
What is the purpose of doing the biuret test with water?
the test is to determine if the substance you are testing has protein in it
What is the chemical indicator used to test protein?
To test for protein. Biuret or solutions of sodium hydroxide and copper sulfate. Tested with a dropper a + result will be purple or something
What is used to test for presence of protein?
Biuret solution
Effect of chemical acid on protein?
Biuret test
Why protein solution turns purple when copper sulfate solution is added?
Copper sulfate solution provides cupric ions that react with the peptide bonds present in the protein molecule. The test is called as biuret test, as it was originally given by biuret compound.( when urea is heated it forms biuret). The reaction is due to the formation of complex between the cupric ions and lone pair of electrons present on the Nitrogen and Oxygen atoms of peptide bond.
How do you tell if a substance contains protein by using biuret test?
If Biuret Reagent is related to the presence of Protein macromolecules, then a positive result will change it's colour from blue to violet.
What can be used as a protein indicator in foods for a science experiment?
Biuret
Which type of food is biuret solution used to test for?
protein
Test for protein in food?
The Biuret reagent can be used.
What indicators are used for each molecule simple sugars starches lipids proteins?
simple sugars- benedicts starches- iodine protein- biuret lipid- brown paper bag test
What is a biuret?
A biuret is the compound formed by the condensation of two molecules of urea with the loss of a molecule of ammonia, (NH2-CO)2NH or any of its derivatives.
If biuret reagent turns purple what substance is present?
food that has protein like milk will cause the Biuret solution to turn purple.
