D. SMALL INTESTINE 1. Name the building blocks of each major class of nutrients: complex carbohydrates (AKA polysaccharides like starch), fats (AKA triglycerides), and proteins. 2.About 99% of all nutrients ingested are absorbed in the small intestine. A. Name the 3 portions of the small intestine in order. The Duodenum, Jejunum, and Ileum. B. In which of these 3 portions does the greatest amount of nutrients absorption occur