Describe enzyme action with reference to the shape of the active site of an enzyme being complementary to its substrate and the formation of products

Identify in diagrams and images specific endocrine glands and state the hormones they secrete, limited to: (a) adrenal glands and adrenaline (b) pancreas and insulin (c) testes and testosterone (d) ovaries and oestrogen

State where, in the digestive system, amylase, protease and lipase are secreted and where they act