Two main functions of monosaccharides.

Lactose:
a) What is the enzyme responsible for the catalysis?
b) What are the products of hydrolysis?
c) Where is it naturally found?

Maltose:
a) What is the enzyme responsible for the catalysis?
b) What are the products of hydrolysis?
c) Where is it naturally found?

Sucrose:
a) What is the enzyme responsible for the catalysis?
b) What are the products of hydrolysis?
c) Where is it naturally found?

Suggest how the digestive disorder lactose intolerance arises.