Digestion and Absorption

The enzyme enterokinase helps in conversion of

1. pepsinogen into pepsin
2. protein into polypeptides
3. trypsinogen into trypsin
4. caseinogen into casein

Identify the cells whose secretion protects the lining of gastro-intestinal tract from various enzymes.

1. Oxyntic Cells
2. Duodenal Cells
3. Chief Cells
4. Goblet Cells

Match the following structures with their respective location in organs : Select the correct option

1. (a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)
2. (a)-(iii), (b)-(ii), (c)-(i), (d)-(iv)
3. (a)-(iii), (b)-(i), (c)-(ii), (d)-(iv)
4. (a)-(ii), (b)-(iv), (c)-(i), (d)-(iii)

Which of the following terms describe human dentition?

1. Pleurodont, Monophyodont, Homodont
2. Thecodont, Diphyodont, Homodont
3. Pleurodont, Diphyodont, Heterodont
4. Thecodont, Diphyodont, Heterodont

Which of the following gastric cells indirectly help in erythropoiesis?

1. Mucous cells
2. Parietal cells
3. Chief cells
4. Goblet cells

Which cells of 'Crypts of Lieberkuhn' secrete antibacterial lysozyme?

1. Paneth cells
2. Zymogen cells
3. Kupffer cells
4. Argentaffin cells

Which of the following options best represents the enzyme composition of pancreatic juice?

1. Amylase, Pepsin, Trypsinogen, Maltase
2. Peptidase, Amylase, Pepsin, Rennin
3. Lipase, Amylase, Trypsinogen, Procarboxypeptidase
4. Amylase, Peptidase, Trypsinogen, Rennin

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. Canines
2. Pre-molars
3. Molars
4. Incisors

Which of the following guards the opening of hepatopancreatic duct into the duodenum?

1. Pyloric sphincter
2. Sphincter of Oddi
3. Semilunar valve
4. Ileocaecal valve

In the stomach, gastric acid is secreted by the

1. peptic cells
2. acidic cells
3. gastrin secreting cells
4. parietal cells.