1) which of the following does not involve enzyme? a) physical digestion b) chemical digestion 2) where does physical digestion take place? a) mouth b) oesophagus c) stomach d) duodenum e) small intestine 3) where do chemical digestion and physical digestion take place simultaneously? a) mouth b) oesophagus c) stomach d) duodenum e) small intestine 4) which process helps in the movement of food in the digestive tract? a) respiration b) peristalsis c) transport d) assimilation e) defecation 5) what is the pH value of the stomach? a) pH 1.0 b) pH 3.5 c) pH 5.5 d) pH 2.0 e) pH 7.0 f) pH 8.5 6) why is the stomach acidic? a) to help in bacteria reproduction b) to kill microorganisms c) to activate amylase d) to activate protease 7) which of the following is found in the mouth? a) amylase b) protease c) lipase d) bile 8) which of the following emulsify fats? a) amylase b) protease c) lipase d) bile 9) which of the following digest protein to polypeptide? a) amylase b) protease c) lipase d) bile 10) which of the following enzyme is found in stomach? a) amylase b) protease c) lipase d) bile 11) which of the following enzyme is found in duodenum? a) amylase b) protease c) lipase d) bile e) lipids 12) what is the end product of the digestion of fats? a) glucose b) amino acids c) fatty acid d) glycerol 13) what is the end product of the digestion of protein? a) glucose b) amino acids c) fatty acid d) glycerol 14) what is the end product of the digestion of starch? a) glucose b) amino acids c) fatty acid d) glycerol 15) which is the last part of digestion take place? a) mouth b) oesophagus c) stomach d) duodenum e) small intestine

Human Digestive System

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