CHAPTER 2: NUTRITION-FOOD = basic need for all living things-Repair & replace damaged tissues-Build new cells-warms body-Build healthy body-Growth-Provides energy to bodyCLASSES OF FOODCarbohydrates-Carbon, hydrogen, oygen -!ain source of energy-"o provide energy to body-Plants# form supportingstructure $cell walls%-&ugar, starch, cellulose'# Rice, potato, sugar,bread & banana-Plants# Comple starch-(nimals# GlycogenProteinCarbon, hydrogen, oygen,nitrogen)sulphur, phosphorus-Growth of new cells-repair damaged bodytissues-to build en*ymes,hormones, haemoglobin &antibodies-'cess are ecreted fromthe body asureain theurine+ish, mil,, meat, eggwhites & nuts $groundnuts& soya beans%--ac, of protein#!ashiororFats-Carbon, hydrogen & oygen-supply ener"y # !ar$th-heat ins%&atortoreduceheat loss from body-protect internalorgans$,idney & heart%-.issolvevitaminsA' D' E'(Plant fats# margarine,coconut oil, olive oil,peanut oil(nimal fats# butter, eggyol,, ghee, mil, )Ani$a& )atshavehi"her *ho&estero&+ita$ins-organic compound -maintain good health -protect body from diseases-/itaminB&C=solublein water-/itamin (, ., ', 0 =&oluble in fats,re)er to tab&e-inera&s.$inera& sa&ts-inorganic substances-needed in small 1uantities-maintain the health of body -!2R' calcium phosphorus iron, iodine, sodium & 3uorine,re)er to tab&e/ater -456 of body weight-control body temperature-as a medium for various chemical reactions in body-Control concentration of blood-"o brea, down, dissolve & transport food during digestion-'crete products such as urea & carbon dioideFibre 0Ro%"ha"e1-+ound in food that containscellulose-to ,eep our intestineshealthy-to stimulate peristalsis &muscle movement of thesmall & large intestine-lac, of roughage#constipation/egetables, beans, fruits,brown rice7)cannot be bro,en downby digestive system+ita$ins/itamin&ource +unction '8ect of de9ciency( !il,, egg,9sh liver oil,carrots, tomatoes,papaya, pump,in-Promote good vision at night-:ealthy s,in, bones, teeth &hair;ight blindnessB