Ans: (d)
137. For pasteurisation of milk by Flash method, milk is heated to a temperature of:
     (a) 10°C
     (b) 37°C
     (c) 72°C
     (d) 100°C
Ans: (c)
138. Which of the following chemicals is used for preserving fruit juices? [Hotel Management 1993]
     (a) Ammonium sulphate
     (b) Sodium hydroxide
     (c) Sodium benzoate
     (d) Potassium nitrate
Ans: (c)
139. The human body is immune to which disease?
     (a) jaundice
     (b) diabetes
     (c) small pox
     (d) tuberculosis
Ans: (c)
140. Mother"s milk is preferred to cow"s milk because it contains: [Railways 1991]
     (a) more fats and more lipids
     (b) less fats and less lipids
     (c) more lipids and less fats
     (d) more fats and less lipids
Ans: (b)
141. Which of the following are affected by AIDS? [IFS 1993]
           1) Blood circulatory system
           2) Nervous system
           3) Immune system
           4) Respiratory system
     (a) 1, 2 and 3
     (b) 2, 3 and 4
     (c) 1, 2 and 4
     (d) 1, 3 and 4
Ans: (d)
142. The biological process accomplished in preparing wine from grapes is very similar to the one involved in the preparation
     of: [Hotel Management 1995]
     (a) curd from milk
     (b) cream from milk
     (c) quinine from cinchona
     (d) penicillin from penicillium
Ans: (a)
143. Which of the following cell organelles functions as the power house of a living cell?
     (a) Chloroplast
     (b) Mitochondria
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