exam qs lqc 8a

Question 1

Explain why a mutation might lead to a change in the activity of an enzyme.

Answer 1

a mutation results in a different sequence of amino acids, therefore different R groups, resulting in changes to ionic hydrogen and disulphide bonds, changes in shape of active site causing a change in enzyme activity

Question 2

Explain how the properties of enzymes help to make blood clot quickly.

Answer 2

enzymes lower the activation energy of reactions in the clotting pathway therefore speeding it up, enzymes are not destroyed by the reaction they catalyse and speed it up

Question 3

State why enzymes are described as biological catalysts.

Answer 3

proteins which reduce activation energy of biological reactions