Digestion

we get to discuss the application of this as it pertains to digestion. 

Lets say you are drinking a glass of milk. Milk contains sugars known as lactose! In most people the pathway for milk includes ingestion, digestion, absorption and elimination. Please explain this pathway in detail (when you get to digestion and absorption focus on only the molecule Lactose).  

Next.... How would their process change in someone who is lactose intolerant (they cannot DIGEST lactose). 

Remember if you used any outside sources please cite them.