Protein And Enzymes

Question 1

Describe the structure of proteins

Answer 1

Polymer of amino acids
Joined by peptide bonds formed through condensation reactions
Primary structure is the number and order of amino acids
Secondary structure is held together by hydrogen bonds and folds into either alpha helix or beta pleated sheet
Tertiary structure is the specific 3D shape which it folds into, it held together by hydrogen ionic and disulphide bonds
Quaternary structure is two or more polypeptide chains joined together

Question 2

Describe how a peptide bond is formed between two amino acids to form a dipeptide

Answer 2

Thorough condensation reaction
Bond between amine and Carboxyl