A peptide hormone that stimulates secretion of gastric acid (HCl) by the parietal cells of the stomach and aids in gastric motility is:
1. GIP
2. gastrin
3. secretin
4. CCK

The hormones released from cells in the duodenal epithelium in response to acidic and fatty stimuli present there when the pylorus opens and emits gastric chyme into the duodenum for further digestion, are:
1. secretin and CCK
2. GIP alone
3. secretin alone
4. CCK alone

Secretin will be secreted by the duodenal mucosa due to:
1. sodium bicarbonate in chyme
2. fats in chyme
3. peptones in chyme
4. hydrochloric acid in chyme

Chyme enters duodenum through:
1. esophageal sphincter
2. pyloric sphincter
3. anal sphincter
4. ileocecal valve

The secretion of which of the following will carry large amounts of sodium bicarbonate to neutralize the acidity of chyme in the small intestine?
1. pancreas
2. gall bladder
3. jejunum
4. salivary glands

Considered as the beginning of the large intestine, the blind end of the ascending colon is known as:
1. cecum
2. vermiform appendix
3. rectum
4. anal canal

All the following are functions of the human liver except:
1. It converts hemoglobin to bile pigments
2. It detoxifies blood by removing toxins
3. It produces urea from the breakdown of amino acids
4. It produces enzymes for digestion of food in the duodenum

The disease resulting from an accelerated breakdown of red blood cells, leading to an increase in production of bilirubin, is known as:
1. hemolytic jaundice
2. obstructive jaundice
3. viral hepatitis
4. cirrhosis

All the following statements regarding the digestive enzymes are true except:
1. They are hydrolases.
2. They are carbohydrates.
3. They have an optimum pH.
4. They speed up a chemical reaction.

Around 60 – 70 % of starch is broken down to maltose in the duodenum by:
1. pancreatic amylase
2. trypsin
3. maltase
4. salivary amylase