The most common cause of diarrhea in young children is:

1. Escherichia coli

2. Rotavirus

3. Entamoeba histolytica

4. Salmonella typhi

Which cells of ‘Crypts of Lieberkuhn' secrete antibacterial lysozyme?
1. Argentaffin cells
2. Paneth cells
3. Zymogen cells
4. Kupffer cells

A baby boy aged two years is admitted to play-school and passes through a dental check-up. The dentist observed that the boy had twenty teeth. Which teeth were absent?
1. Incisors
2. Canines
3. Premolars
4. Molars

Which of the following options best represents enzyme composition of pancreatic juice?
1. Amylase, peptidase, trypsinogen, rennin
2. Amylase, pepsin, trypsinogen, maltase
3. Peptidase, amylase, pepsin, rennin
4. Lipase, amylase, trypsinogen, procarboxypeptidase

Which hormones do stimulate the production of pancreatic juice and bicarbonate?
1. Angiotensin and epinephrine
2. Gastrin and insulin
3. Cholecystokinin and secretin
4. Insulin and glucagon

Which of the following guards the opening of hepatopancreatic duct into the duodenum?
1. Ileocaecal valve
2. Pyloric sphincter
3. Sphincter of Oddi
4. Semilunar valve

In the stomach, gastric acid is secreted by the:-
1. parietal cells
2. peptic cells
3. acidic cells
4. gastrin secreting cells

The enzyme that is not present in succus entericus is
1. maltase
2. nucleases
3. nucleosidase
4. lipase

Which of the following statement is not correct?
1. Brunner's glands are present in the submucosa of stomach and secrete pepsinogen.
2. Goblet cells are present in the mucosa of intestine and secrete mucus.
3. Oxyntic cells are present in the mucosa of stomach and secrete HCl.
4. Acini are present in the pancreas and secrete carboxypeptidase.

Fructose is absorbed into the blood through mucosa cells of intestine by the process called
1. active transport
2. facilitated transport
3. simple diffusion
4. co-transport mechanism