Final answer:
Carbohydrate digestion involves breaking down complex carbohydrates into monosaccharides during the process of digestion. These monosaccharides are then absorbed into the bloodstream and used for energy production.
Step-by-step explanation:
During carbohydrate digestion, complex carbohydrates are broken down into simple, soluble sugars called monosaccharides. This process begins in the mouth with the action of salivary amylase on starches and continues in the small intestine. In the small intestine, pancreatic amylase and brush border enzymes break down disaccharides and complex sugars into monosaccharides such as glucose, fructose, and galactose. These monosaccharides are then absorbed into the bloodstream through the epithelium of the small intestine and transported to tissues for energy production.