1) There are ______ sets of teeth. a) 3 b) 4 c) 2 2) Tongue is a ________ organ present inside the mouth. a) Muscular b) Weak c) Strong 3) Food pipe is also called ________ a) Saliva b) Oesophagus c) None of these 4) Proteins are digested by a) amylase b) lipase c) pepsin and trypsin 5) Pharynx is called the voice box. a) True b) False 6) stomach secretes the intestinal juice. a) True b) False 7) Duodenum acts as the junction for the action of a) trypsin and pepsin b) Pepsin and salivary amylase c) bile juice and pancreatic juice 8) The finger like structures found in the walls of the small intestine is called a) villi b) uvula c) capillary 9) _____________ is a flap of tissue that prevents the entry of food into the trachea. a) glottis b) epiglottis c) larynx

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