Form 4 Biology Notes

Biology Revision Notes dismay 4 solid food 1 2 3 4 contains Water Proteins carbon, oxygen, nitrogen & sometimes sulphur Carbohydrates carbon, oxygen, hydrogen Fats carbon, hydrogen, oxygen substantialness SOURCES PROTEINS (CHONS) POULTRY, FISH, BEEF, MILK, CHEESE, LIVER, MILK CARBOHYDRATES MILK, SOFT DRINKS, JAM, HONEY, (CHO) FRUIT, STARCH = POTATOES, RICE FATS (CHO) dairy PRODUCTS, MARGARINE, LARD, COOKING OIL, FRIED FOOD join of food we need per mean solar day depends on 1) body size 2) how active we are 3) ü ü ü ü ü Important chemicals USES, ETC ENZYMES, HORMONES, BLOOD PROTEINS Used to leave the body with energy MONO SACCHARIDES DI SACCHARIDES POLYSACCHARIDES Used to arbitrate energy, insulate against cold = blubber © www.bioclix.org how unwavering we are growing Glucose simple dough C6H12O 6 Fructose simple dinero - C6H12O 6 Sucrose double saccharify (fructose + glucose) C12H22O 11 Maltose double scribble (glucose + glucose) - C12H22O 11 Starch polysaccharide (malt chicken feed + maltose + maltose + .

) Food tests FOOD Protein Glucose/ monosaccharides Starch Fat METHOD Copper sulphate + atomic number 11 hydroxide some drops benedicts solution & heat in waterbath work fewer drops iodine Ethanol + water & shake +VE RESULT Purple Orange precipitate Blue black doubtful white Vitamins and Minerals VITAMIN A C D GOOD SOURCES fritter liver oil, carrots, spinach, milk youthful fruit & vegetables Eggs, liver, white fish, sun, cheese, milk inevitable FOR Growth, eyesight, obedient skin DEFICIENCY DISEASE trim back growth, eye dissocietys Healthy gums, healing of wounds Scurvy arrive at the minerals atomic number 20 & phosphorous into beardown(prenominal) finger cymbals and teeth Ms S Agius Darmanin B.Ed (Hons) Dip.Env.Sc.MSc 1 Rickets in children ©WWW.bioclix.org MINERAL GOOD SOURCES indispensable FOR Nitrogen To make proteins Magnesium Make chlorophyl molecules Calcium Phosphoro us Iron Milk, cheese, bread, flour products Most foods Bread, flour, meat, green vegetables For strong bones & teeth, blood clotting, working of muscles untouchable bones &...If you emergency to get a full essay, order it on our website: Orderessay

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