Protiens

Question 1

How does a peptide bond form?

Answer 1

Condensation reaction between amine and carboxylic acid group

Question 2

How many amino acids in a polypeptide chain? (general formula)

Answer 2

Peptide bonds + 1

Question 3

Polypeptide vs functional protiens.

Answer 3

Polypeptide - primary structure
functional protien - 1 or more polypeptide chains.
functional proteins - have ionic and disulphide bonds between bonds aswell.

Question 4

essential amino acid definition

Answer 4

have to be ingested as they can not be synthesised by humans.

Question 5

Biuret test for protiens

Answer 5

liquid solution of sample.
Add coper II sulphate and it will tirn lilac from blue.
hold up white paper - subtle change.