Please enable JavaScript.
Coggle requires JavaScript to display documents.
Proteins - Coggle Diagram
Proteins
-
-
-
-
-
-
Test for proteins
The most reliable protein test is the biuret test, which detects peptide bonds. It is performed as follows:
Place a sample of the solution to be tested in a test tube and add an equal volume of sodium hydroxide solution at room temperature.
-
A purple colouration indicated the presence of peptide bonds and hence a protein. If no protein is present, the solution remains blue.
Proteins are usually very large molecules. The type of carbohydrates are lipids in all organisms are relatively few and they are very similar. However, each organism has numerous proteins that differ from species to species. The shape of any one type of protein molecule differs from that of all other types of proteins. Proteins are very important molecules in living organisms.