The Biuret test is used to test for the presence of an amino
acid.
True
False
Casein can be isolated from milk by bringing it to its
isoelectric point.
True
False
Biuret reagent is used to confirm the presence of protein. Which
of the following do you expect to give a positive Biuret test?
Deionized water
Glutamic acid (an amino acid)
Casein
More than one of these will give a positive Biuret test.
Albumin is a protein. Do you expect a solution of albumin to be
able to neutralize a small amount of acid?
Yes, because albumin can function as a base.
Yes, because albumin can function as an acid.
No, because albumin cannot function as a base.
No, because albumin cannot function as an acid.
Albumin is a protein. Do you expect a solution of albumin to be
able to neutralize a very large amount of acid?
Yes.
No.