1) A chemical that is needed by the body to keep it in good health is called .............. a) Minerals b) Nutrients c) Fibre 2) --------------------------- are made from carbon, hydrogen & oxygen a) Protein b) Carbohydrates c) Fats d) Fibres 3) Carbohydrates are made from a) carbon , oxgen , nitrogen b) carbon , oxgen , hydrogen c) carbon dioxide , oxygen , hydrogen 4) ----------------- molecules link together in long chain to make larger molecules such as starch. a) Glucose b) Amino acids c) Carbohydrates  5) Glucose and starch are two of the most widely known -------------- , and there are others as -----------------------. a) sugar, cellulose b) carbohydrates , cellulose c) cellulose , carbohydtates d) carbohydrates , glycerol 6) The basic units of lipids are ------------------ and ---------------------. a) amino acids , cellulose b) cellulose , glycerol  c) fatty acid , glycerol 7) Production of energy in -------------------- larger than ----------------------------. a) carbohydrates, fats  b) fats , carbohydrates c) protein , carbohydrates 8) Fats form a part of the -------------------------. a) cell wall b) cell membrane c) cytoplasm  9) ------------------ are used to store energy. a) Fats b) protein c) Carbohydrates 10) Select two functions of fats a) provide instant energy b) acts as heat insulators and helps to keep the mammal warm in cool conditions. c) used to store energy. d) used for growth and repair. e) Needed for the growth of body and replace tis 11) ---------------- are made of carbon and hydrogen atoms with a few oxygen atoms. a) Fats  b) Carbohydrates c) Proteins  d) Lipids  12) --------------------- link together into long chain to form protein molecules. a) Fatty acis b) Amino acids c) Glycerols 13) ----------------- are made of carbon, hydrogen, nitrogen , oxygen and sulphur. a) Proteins b) Fats c) Carbohydrates 14) List two importance of protein  a) Needed for the growth of body and replace tissues .  b) acts as heat insulators c) Produces enzymes d) used to store energy. 15) ---------------------- which are chemicals made of ---------------- and take part in food digestion reactions and in speeding up reactions inside cells. a) Nutrients , protein b) Enzymes, fats c) Minerals d) Enzymes , protein e) Nutrients , fats 16) --------------- prevents Scurvy in which gums bleed . a) Vitamin E b) Vitamin C c) Vitamin D 17) Prevents the disease rickets in children , where bones are soft and legs may bend . a) Vitamin E b) Vitamin C c) Vitamin D 18) Vitamin D is found in a) fish liver oil , sunlight , cheese b) fish liver oil , lemon , cheese c) cheese , milk , guava 19) Calcium is importance as  pick 4 a) needed to make muscles  b) make blood pigment  c) helps in blood clotting  d) makes strong bones  e) regulates blood pressure  f) cause high blood pressure 20) Iron is importance as ----------- a) needed to make muscles b) make blood pigment c) helps in blood clotting d) regulates blood pressure 21) ----------------- is carbohydrate that makes up the cell wall in plants. a) Lactose b) Glycerol c) Cellulose 22) We can't digest it but it helps to move food along the intestines. a) Fats b) Fibres c) Protein 23) If a person's diet lacks fiber, they may suffer from bowel problems as --------------- a) anemia b) constipation. c) diarrhea 24) A ----------------- is when the nutrients are present in correct amounts to keep your body healthy. a) diet paln b) balanced diet c) unbalanced diet 25) ------------------ is a diet that provides too few nutrients or too many nutrients . a) Balanced diet b) Malnutrition c) Nutrition 26) ------------------- is used to cool the body down by the evaporation of sweat from the skin. a) Food b) Blood c) Water 27) Lack of nutrients may cause a) constipation b) scurvy c) anaemia  d) diarrhea 28) -------------------- in food is known as dietary fiber. a) Protein b) Cellulose c) Starch 29) Cellulose is carbohydrate that makes up the ------------------------ in plants. a) cell membrane b) cell wall c) cytoplasm 30) All chemical reactions in the body take place in ------------ a) saliva b) acid c) water 31) -------------------- foods contain carbohydrates which are made of long chains of ----------------- small --------------- molecules. a) Starchy,identical, carbon b) Starchy,identical, sugar c) Starchy,unidentical, sugar d) Acidic ,identical, sugar 32) -------------------- are made up of chains of small molecules called -------------------.These small molecules are -------------------------- a) Proteins, fatty acid acids, not identical. b) Fats , amino acids, not identical. c) Proteins, amino acids, not identical. d) Proteins, amino acids, identical. 33) Fats are made up of fat molecules which contain ------------------- and ---------------------. a) amino acids , glycerol b) fatty acids , cellulose c) fatty acids , glycerol  d) amino acids , cellulose 34) Intake of substances (e.g. food, drink) into the body through the mouth a) Digestion  b) Indigestion c) Absorption  35) Break down of long chain molecules into smaller molecules that dissolve in water and can pass through the wall of the gut. a) Digestion b) Indigestion c) Absorption 36) The body carries out digestion of food to convert ---------------------- food molecules into -------------------- ones. a) small insoluble, larger soluble b) large soluble, smaller insoluble c) large insoluble, smaller soluble 37) Small food molecules can pass through the walls of the ------------------- and then dissolve into the ------------------. a) large intestine, blood stream b) small intestine, blood stream c) small intestine, gut  38) What are the 7 parts of the alimentary canal? a) mouth, pharynx (throat),salivary glands , stomach, small intestine, large intestine, rectum, and anus b) mouth, liver, esophagus, stomach, small intestine, large intestine, rectum, and anus c) mouth, pharynx (throat), esophagus, stomach, small intestine, large intestine, rectum, and anus d) mouth, pharynx (throat), esophagus, stomach, small intestine, large intestine, pancreas, and anus 39) 5 different stages during its passage through the alimentary canal a) Ingestion,Chemical reaction , Assimilation,Egestion,mechanical reaction  b) Mechanical digestion,Ingestion,Assimilation,Egestion c) Ingestion,Mechanical digestion,Chemical digestion,Absorption,Assimilation,Egestion 40) The hollow organs that make up the GI tract are the mouth, esophagus, stomach, small intestine, large intestine, and anus a) Salivary glands  b) Associated glands c) Alimentary canal 41) -------------------------------- the breakdown of food into smaller pieces without chemical change to the food molecules a) Chemical digestion b) Mechanical digestion c) Assimilation 42) -----------------------the breakdown of large, insoluble molecules into small, soluble molecules a) Chemical digestion b) Mechanical digestion c) Assimilation 43) --------------------------------- the movement of small food molecules and ions through the wall of the intestine into the blood a) Chemical digestion b) Assimilation c) Absorption 44) ------------------------- the movement of digested food molecules into the cells of the body where they are used, becoming part of the cells a) Egestion b) Assimilation c) Absorption 45) ---------------------------------- the passing out of food that has not been digested or absorbed, as faeces, through the anus a) Egestion b) Assimilation c) Absorption 46) -------------------------------- is the breakdown of food into smaller pieces without chemical change to the food molecules a) Physical/Mechanical digestion b) Chemical digestion c) Absorption 47) chisel-shaped for biting and cutting a) Canines b) Molars c) Incisors 48) The processes that take place during physical digestion help to increase the surface area of food for the action of-----------------during chemical digestion a) saliva b) enzymes c) acids 49) ---------------------------- is mainly carried out by the chewing action of the teeth, the churning action of the stomach and the emulsification of fats by bile in the duodenum a) Chemical digestion b) Mechanical digestion c) Absorption 50) pointed for tearing, holding and biting a) Premolars and molars b) Canines c) Incisors 51) larger, flat surfaces with ridges at the edges for chewing and grinding up food a) Premolars and molars b) Canines c) Incisors 52) The ----------------- lining contains muscles which contract to physically squeeze and mix the food with the strong digestive juices . a) esophagus b) Stomach c) small intestine 53) Cells in the liver produce bile which is then stored in the ------------------ a) kidney b) pancreas c) gallbladder 54) It breaks down large drops of fat into smaller ones. a) Mechanical digestion  b) Emulsification c) Absorption 55) Biles are a) acidic b) alkaline 56) ---------------------- are produced in the mouth and the pancreas (secreted into the duodenum) a) Proteases b) Lipases c) Amylases 57) Amylases digest into -------------------- smaller sugars a) glycerol b) amino acid c) starch 58) ------------------------- are a group of enzymes that break down proteins into amino acids in the stomach and small intestine (with the enzymes in the small intestine having been produced in the pancreas) a) Amylases b) Lipases c) Proteases 59) Proteases are a group of enzymes that break down ------------- into -----------------------. a) proteins, amino acids b) starch, amino acid c) proteins , fatty acids 60) are produced in the pancreas and secreted into the duodenum. a) Amylases enzymes b) Proteases enzymes c) Lipase enzymes 61) ---------------------- digest lipids into fatty acids and glycerol a) Proteases enzymes b) Lipase enzymes c) Amylases enzymes 62) The stomach produces several fluids which together are known as -------------- a) salicva b) gastric juice c) bile acid 63) Associated glands are  a) liver, stomach., pancreas b) liver, pancreas, salivary glands c) mouth, oesophagus,stomach,small and large intestine 64) Food is swallowed then enters the stomach, which is basically a muscular bag filled with ---------------- . a) Alkaline b) hydrochloric acid c) Bile acid 65) Two things happen to food in the stomach: a) absorbtion of water b) the physical breakdown of food begins c) the chemical breakdown of food begins d) microbes are destroyed. 66) After the small intestine, the remains of any undigested food travel to the ----------------------------. a) Anus b) guts c) large intestine. 67) The --------------- is valuable and so is absorbed in the large intestine into the blood stream. a) Nutrients b) water c) Vitamins 68) The undigested waste travels to the-------------- where it is stored until leaving the body through the --------------------. a) rectum , blood stream b) anus , rectum c) rectum , anus 69) There are ------------teeth in the first set called milk teeth. a) 22 b) 32 c) 20 70) The first teeth emerge through the gums at aboutof ----------------- age. a) 8 months b) 6 years c) 6 months 71) The milk teeth set is complete by about age ----------- a) 10 b) 3 c) 6 72) Milky teeth are replaced by second set of -------------- teeth. a) 32 permanent b) 32 temporary c) 36 permanent 73) The permanent teeth begin at about age---------- and is completed by about age ------------------- a) 8, 17 b) 6,17 c) 6,21 74) are the chemicals that break large insoluble food molecules into smaller soluble molecules a) Digestive bile b) Digestive enzymes c) Digestive acids 75) 3 kinds of Digestive enzymes a) carbohydrase b) protein  c) lipase d) lipds e) protease f) glycerol. 76) The digestive enzymes called ---------------------- break the chemical bonds between the individual sugar molecules in each carbohydrate chain a) lipase b) carbohydrases c) protease d) glycerol. 77) These enzymes work in an acidic environment to break proteins into smaller amino acids. a) lipase b) carbohydrases c) protease d) glycerol 78) Fats are digested in two stages: a) emulsification, absorbtion b) emulsification, digestion  c) emulsification, indigestion d) digestion ,emulsification 79) Bile (released by the gall bladder) allows the fat to “mix” with water by breaking the fat into smaller droplets. a) Assimilation b) digestion  c) emulsification 80) A chemical that helps digestion by breaking large molecules into smaller ones a) bile b) enzyme c) acids 81) Substances found in food that are needed in small amounts for health. a) enzyme b) minerals c) vitamins 82) –Compounds in food that provide the elements needed in small amounts for a healthy diet. a) vitamins b) minerals c) enzyme 83) The organ where water is removed from undigested food. a) large intestine b) small intestine c) stomach 84) A nutrient in food needed for growth and repair a) protein b) vitamins c) carbohydrate d) fats 85) – A nutrient in food that provides a store of energy a) protein b) vitamins c) carbohydrate d) fats 86) – A nutrient in food that provides energy a) vitamins b) protein c) minerals d) fats e) carbohydrate 87) Different nutrients are incorporated into each part of a cell: Protein are incorporated in  a) nucleus b) Cell wall  c) Cytoplasm  d) Cell membrane  88) Different nutrients are incorporated into each part of a cell: fats are incorporated in a) nucleus b) Cell wall c) Cytoplasm d) Cell membrane 89) Different nutrients are incorporated into each part of a cell: carbohydrates are incorporated in a) nucleus b) Cell wall c) Cytoplasm d) Cell membrane 90) Different nutrients are incorporated into each part of a cell: water are incorporated in a) nucleus b) Cell wall c) Cytoplasm d) Cell membrane

Grade 6 Digestive system

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