1. Scurvy Not enough Vitamin C

2. Clinistix paper Positive result Red to purple

3. Peter: Weight:50kg, Daily energy requirements: 11500 kJ Calculate Peter’s daily energy requirement per unit body weight (kJ/kg)? 11500/50 = 230 kJ/kg

4. What is absorption? The digested food molecules enter the circulatory system.

5. What food substances are absorbed by Z? Lipid soluble substances: fatty acid, glycerol, vitamin A, D, E, K Z

6. Vitamin C Food test DCPIP test

7. Baby need more energy per unit body weight because The relative surface area of baby is large, they need more energy to produce heat to compensate heat loss

8. DCPIP test Positive result Blue to colourless Decolorized

9. Reducing sugar Food test Benedict’s test

10. Blood in Y will first transport to….through…… liver; hepatic portal vein Y

11. What is the fate of excess protein? Excess amino acids cannot stored and will be broken down in liver by deamination : (i) Urea formed is carried via the bloodstream to the kidneys and is excreted in the urine. (ii) The remaining part of the amino acid is converted to glycogen and stored in liver.

12. Benedict’s test Positive result Brick red precipitate

13. Protein Food test Albustix paper

14. Stomach Digestive juice Gastric juice

15. What is X? Villus X

16. Iodine test Positive result Brown to blue black

17. Protein Functions Growth and repair, produce enzyme, hormone, haemoglobin

18. Lipid Function Produce energy, shock absorber, heat insulator

19. Protease Can be found in Gastric juice, pancreatic juice, intestinal juice

20. Calcium Function Form bones and teeth

21. Water Function As solvent, for transport, heat loss by sweating

22. Physical digestion function Increase surface area of food for digestive enzyme to act on

23. Vitamin C Deficiency disease Scurvy

24. Vitamin A Deficiency disease Night blindness

25. What is the fate of excess glucose? Excess glucose is converted to glycogen by the liver for storage. Some of the excess glucose is converted to lipid.

26. Calculate the energy in 300mL milk Milk (per 100 mL) Energy272 kJ Carbohydrate4.8g Protein3.4g Fat3.8g Calcium110 mg 272*3 = 816 kJ

27. What is L? Pancreas

28. Mouth Digestive juice Saliva

29. What is egestion? The undigested materials are removed from the body as faeces.

30. Saliva contain Salivary amylase, water

31. What is E? Ileum

32. Dietary fibre Deficiency disease Constipation

33. Vitamin D Deficiency disease Rickets

34. Constipation Not enough Dietary fibre

35. Constructive worker need more energy because They need more energy for stronger muscle contraction

36. Night blindness Need to eat more Fish liver oil, carrot

37. Rickets Need to eat more Dairy product, Cheese, Milk

38. Digestion of protein starts at K

39. Constipation Need to eat more vegetables

40. What is the fluid inside Z? Lymph Z

41. Chemical digestion by Digestive enzymes

42. Mouth Physical digestion by Chewing of teeth

43. Bile Physical digestion by Emulsify fat to oil droplet to increase surface area for lipase to act on

44. Villus number Large number to increase surface area

45. Liver Digestive juice Bile

46. Small intestine Digestive juice Intestinal juice

47. Small intestine is long because It can provide more time to digest and absorb food substances.

48. Saliva Secreted by Salivary gland

49. Bile contain Bile salt, hydrogencarbonate salt, bile pigment

50. Pancreatic juice contain Amylase, protease, lipase, Hydrogencarbonate salt

51. Gastric juice contain Protease, hydrochloric acid

52. What is Z? Lacteal Z

53. Iron Function Form haemoglogin

54. Intestinal juice contain Carbohydrase, protease

55. Lipid Food test Spot test

56. Lipase Can be found in Pancreatic juice

57. Which part absorbs the largest amount of nutrient? E

58. Amylase Can be found in Saliva, pancreatic juice

59. Food move in alimentary canal by peristalsis

60. Which part is acidic? stomach

61. Energy requirement depands on Age, gender, occupation, body status

62. Dietary fibre Function Stimulate peristalsis in gut (intestine)

63. Vitamin A Function Form pigment for night vision

64. Teenager need more protein because They need more protein for growth

65. Teenager need more calcium for The growth of bones and teeth

66. Villus shape Finger like to increase surface area for absorption

67. What is Y? Blood capillaries Y

68. Starch Food test Iodine test

69. Matching Glucose..Protein Glycerol..Starch Amino acid..Lipid Fatty acid.

70. What is ingestion? Food is taken in through the mouth.

71. What is digestion? Food is broken down into soluble and simple molecules.

72. Glucose Function Produce energy by respiration

73. What is assimilation? The absorbed food molecules are taken up by cells for metabolism.

74. What is N? Rectum

75. Bile Secreted by Liver

76. Stomach Physical digestion by Churning of muscle

77. State two features of X that allow it to absorb food substances easily. X is finger like to increase surface area to absorb food. There are lots of X in small intestine to increase surface area to absorb food. X

78. Vitamin D Function Help Calcium absorption

79. Albustix paper Positive result Yellow to Green

80. Calcium Deficiency disease Rickets

81. Which part stores faeces? N

82. Scurvy Need to eat more Fruit, vegetable

83. Anaemia Need to eat more Meat, liver

84. Girls needs more iron than boys because Girls loss blood in menstruation. They need more iron to produce blood

85. Teenager need more protein because They need more protein for growth

86. What food substances are absorbed by Y? Water soluble substances: glucose, amino acid, vitamin C, minerals, water Y

87. What is B? Gall bladder

88. Night blindness Not enough Vitamin A

89. Glucose Food test Clinistix paper

90. Intestinal juice Secreted by Intestinal gland in small intestine

91. Spot test Positive result Translucent spot disappeared

92. Anaemia Not enough Iron

93. Vitamin C Function Forming connective tissue

94. Gastric juice Secreted by Gastric gland in stomach

95. Pregnant women need more protein because They need more protein for foetus growth

96. Pancreas Digestive juice Pancreatic juice

97. Iron Deficiency disease Anaemia

98. Rickets Not enough Calcium/ Vitamin D

99. Pancreatic juice Secreted by Pancreas

100. What part is acidic? K