Protein Structure

Question 1

Describe how monomers join to form the primary structure of a protein

Answer 1

1 condensation reaction between amino acids
2 forming peptide bonds
3 creating specific sequence of amino acids

Question 2

Define the quaternary structure of a protein

Answer 2

More than one polypeptide

Question 3

Describe how the structure of glycogen is related to its function

Answer 3

1 coiled so compact
2 polymer of glucose so easily hydrolysed
3 branched so more than ends for faster hydrolysis
4 insoluble so not easily lost from cell

Question 4

Describe how one amino acid is added to a polypeptide that is being formed at a ribosome during translation

Answer 4

1 tRNA brings specific amino acid to ribosome
2 anticodon on tRNA binds to codon on mRNA
3 amino acids join by condensation reaction using ATP

Question 5

Describe the primary structure of all proteins

Answer 5

1 sequence of amino acids
2 joined by peptide bonds