LIFE SCIENCE

Detailed explanation-1: -Lactase (lact-ase): Lactase is an enzyme that catalyzes the hydrolysis of lactose to glucose and galactose. This enzyme is found in high concentrations in the liver, kidneys, and mucous lining of the intestines.

Detailed explanation-2: -When lactose enters the small intestine it is quickly broken down by the enzyme called lactase. Only then can the separate building blocks of the lactose (glucose and galactose) be absorbed by the small intestine.

Detailed explanation-3: -Lactose is a disaccharide consisting of 2 monosaccharides, glucose and galactose, linked together via a -1→4 bond. Hydrolysis of this bond requires a specific enzyme called lactase which digests lactose to its components allowing the uptake of glucose and galactose from the intestine.