1. ingestion-placement of food into mouth. 2.propulsion-peristalsis moves food from one organ to the next 3.absorption-Transport of digested end products from the lumen GI tract into the bloodstream or lymph 4.mechanical breakdown 5.defecation 6.chemical digestion-The sequence of steps by which large food molecules are broken down into their respective building blocks by catalytic enzymes within hydrolysis reactions. Solution 1. ingestion-placement of food into mouth. 2.propulsion-peristalsis moves food from one organ to the next 3.absorption-Transport of digested end products from the lumen GI tract into the bloodstream or lymph 4.mechanical breakdown 5.defecation 6.chemical digestion-The sequence of steps by which large food molecules are broken down into their respective building blocks by catalytic enzymes within hydrolysis reactions..