digestive system

• lipids are broken down into fatty acids and glycerol
• carbohydrates are broken down into disaccharides, then monosaccharides
• proteins are broken down into polypeptides, then short peptides, then amino acids
• carbohydrate digestion uses salivary amylase
• protein digestion uses pepsin
• lipid digestion uses lipase
• disaccharides are sucrose, maltose and lactose
• amylase breaks down starches to produce maltose
• polysaccharide is starch