2.4 Protien

Question 1

Composition of Protiens

Answer 1

Long chains of recurring monomers called amino acids

Question 2

Common basic structure of Amino Acids

Answer 2

Central carbon atom bound to:
An amine group (NH2)
A carboxylic acid group (COOH)
A hydrogen atom (H)
A variable side chain (R)

Question 3

Draw Structure of a Generalised Amino Acid

Answer 3

(‘Draw’)

Question 4

Purpose of Polypeptides

Answer 4

Make up protiens

Question 5

Formation of Polypeptides

Answer 5

Amino acids join together on ribsomes
Form long chains of ‘polypeptides’

Question 6

Variety of Amino acids

Answer 6

Each amino acid differs in composition due to variable side chain
Distinct properties (polarity/charge/etc.)
Thus, protein will fold/function differently according to specific position within polypeptide chain

Question 7

How Amino Acids join

Answer 7

Covalently bonded via condensation to form a dipeptide and water