Protiens Flashcards
1
Q
How does a peptide bond form?
A
Condensation reaction between amine and carboxylic acid group
2
Q
How many amino acids in a polypeptide chain? (general formula)
A
Peptide bonds + 1
3
Q
Polypeptide vs functional protiens.
A
Polypeptide - primary structure
functional protien - 1 or more polypeptide chains.
functional proteins - have ionic and disulphide bonds between bonds aswell.
4
Q
essential amino acid definition
A
have to be ingested as they can not be synthesised by humans.
5
Q
Biuret test for protiens
A
liquid solution of sample.
Add coper II sulphate and it will tirn lilac from blue.
hold up white paper - subtle change.
