How would you explain the two types of processes within the digestive system?

I really don't know what you're asking, but I'm going to answer anyway:

Mechanical digestion: Food is broken down into smaller pieces but still retains its chemical properties.

Also called physical digestion. Examples: Action of teeth & emulsification by bile.

Chemical Digestion: Food is broken down and changed chemically into smaller chemical units. Reaction is called hydrolysis and carried on by enzymes. Ex: Starch--->sugars, Protein--->amino acids.