Proteins Flashcards
1
Q
What is a polypeptide
A
More than two amino acids joined together
2
Q
Is the structure of an amino acid?
A
Carboxyl group(cooh) Amino group (h2n) Variable group
3
Q
What bond forms between amino acids?
A
Peptide bonds
4
Q
What is the test for proteins?
A
Biurets test
5
Q
How to do biurers test?
A
The solution has to be alkaline so you add sodium hydroxide solution to the sample.
Now add copper sulphate and if positive it will change colour to purple and if negative blue.
6
Q
What is called when two amino acids are joined together?
A
Dipeptide
