Identify the correct statement regarding lipid digestion and absorption:
1. Most lipids are asorbed without digestion as they are not macromolecules
2. The products of lipid digestion are resynthesized into triglycerides in intestinal epithelial cells
3. The products of lipid digestion diffuse into capillaries in the vicinity of the intestinal epithelium
4. The products of lipid digestion travel in the circulatory system in the form of micelles

Identify the correct statement regarding the transport of the absorbed products of fat digestion:

1. Free fatty acids and monoglycerides are transported to the liver via the hepatic portal vein

2. Triglycerides are transported through the lymphatics in lipoproteins called LDL

3. Triglycerides are transported through the lymphatics as part of lipoproteins called chylomicrons

4. Free fatty acids and monoglycerides are transported through the lymph as part of lipoproteins called chylomicrons

Emulsification of fats occurs in small intestine and it:
1. Results in the formation of small fat droplets
2. Depends upon the polar structure of bile salts
3. Results in the formation of chylomicrons
4. Depends upon the polar structure of bile pigments

Intrinsic factor helps in the absorption of:
1. Amino acids
2. Sodium
3. Glucose
4. Vitamin B-12

During deglutition, what allows the food to enter the stomach?
1. Pyloric sphincter
2. Ileocecal sphincter
3. Epiglottis
4. Lower esophageal sphincter

HCl in stomach is the function of ___ cells that contain an enzyme called ___ that catalyzes the reaction between ______________ and water.
1. Chief; carbonic esterase; carbon dioxide
2. Parietal; carbohydrase; bicarbonate
3. Parietal; carbonic anhydrase; carbon dioxide
4. Goblet; carbonic anhydrase; bicarbonate

Identify the incorrect statement:

1. Increasing acidity in the stomach stimulates endocrine cells in the gastric epithelium to produce somatostatin that inhibits further HCl secretion

2. HCl production increases in response to carbohydrates entering the stomach

3. HCl secretion is inhibited when acidity increases in the small intestine

4. Gastrin, histamine, and acetylcholine all act to increase HCl secretion

Enterokinase:

The large intestine functions in:
1. Bicarbonate secretion and bacterial action
2. Acid secretion and bacterial action
3. Water reabsorption and mass movements
4. Mixing action and intestinal hormone production

A common cause of peptic ulcer disease is:
1. Increased activity of the autonomic nervous system in persons with chronic stress
2. Infection of the stomach wall by Helicobacter pylori (a type of bacteria)
3. Consuming high levels of dairy products and hot, spicy foods
4. Increased production of hydrochloric acid (HCl) or gastrin by the stomach