nutrition definitions 0.0 / 5 ? BiologyEnzymes and digestionIGCSECIE Created by: Myah.sxCreated on: 02-11-17 21:36 Ingestion The taking in of substances - e.g. food and drink into the body through the mouth. 1 of 6 Mechanical digestion The breaking down of food into smaller pieces without chemical change to the food molecules. 2 of 6 Chemical Digestion The breakdown of large insoluble molecules into small insoluble. 3 of 6 Absorption The movement of small food molecules and ions through the wall of the intestines into the blood. 4 of 6 Egestion The passing out of food that hasn't been digested or absorbed, as faeces, through the anus. 5 of 6 Assimilation The movement of digested food molecules into the cells of the body where they are used and become part of the cells. 6 of 6
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