Digestion is a form of catabolismthat is often divided into two processes based on how food is broken down: mechanical and chemical digestion. Absorption is the process in which nutrients are passed into the bloodstream. Digestion and absorption begins in your mouth and ends when waste exits your colon. Digestion is the breakdown of large insoluble food molecules into small water-soluble food molecules so that they can be absorbed into the watery blood plasma. Absorption and egestion These are the processes that happen in the digestive system: ingestion (eating) → digestion (breaking down) → absorption → egestion (removal from the body) Another example of biological absorption is the absorption of digested food specifically through the wall of the intestine (especially, the small intestine). Absorption Of Digested Foods Absorption is the process by which the products of digestion are absorbed by the blood to be supplied to the rest of the body. Digestion and Absorption Lipids in your body are essential for proper digestion and absorption of food and nutrients. The term mechanical digestion refers to the physical breakdown of large pieces of food into smaller pieces … Food is fuel for your body and provides nutrients, which are broken down and absorbed … In certain organisms, these smaller substances are absorbed through the small intestine into the blood stream. Get More Vitamin D. Vitamin D not only benefits your body on its own, but is also assists with the … The digested food in the small intestinepasses through the walls of the small intestine into the blood vesselsby diffusion or by active transport. During absorption, the digested products are transported into the blood or lymph through the mucous membrane. Absorption is achieved by the following mechanisms. The absorption of minerals by the body is affected by many factors.