BLG 144 Lecture Notes - Boiling Tube, Hemorrhoid, Appendicitis
Document Summary
Food has two main functions which provide: chemical p. e. (starting point) for respiration, substances used in metabolism to produce/maintain cells and tissues. Role of carbohydrates and lipids in the body. Low levels in diet may cause appendicitis, cancer of colon, haemorrhoids, constipation. Essential fatty acids are precursors of other important substances. Increase in temp of the h2o is measured. More accurate results by reduced heat loss: water jacket less loss of heat, sample burnt in o2 allows more combustion, copper coil transfers more heat to water, stirrer distributes heat evenly to area of thermometer. Healthy diet requires right balance between carbohydrates and lipids: food rich in carbohydrates is an instant source of energy ( glucose) Tend to be bulky and contain large amounts of h2o. Food/drink rich in pure glucose is absorbed without digestion. Lipid-rich food amount of energy released is high. Cannot be synthesised and must be present in diet.
