Chapter 9 - enzymes

Question 1

EC 1: oxidoreductase

Answer 1

oxidation/reductions

e.g. lactate dehydrogenase

Question 2

EC 2: transferase

Answer 2

transfer of a group

e.g. hexokinase

Question 3

EC 3: hydrolases

Answer 3

water cleaves a bond

e.g. glucose-6-phosphatase

Question 4

EC 4: lyases

Answer 4

non-hydrolytic cleavage addition or removal of groups

e.g. carbonic anhydrase

Question 5

EC 5: isomerases

Answer 5

intramolecular rearrangement

triose-phosphate isomerase

Question 6

EC 6: ligases

Answer 6

join 2 molecules

e.g. amino-acyl tRNA synthetases