Bms 300 Exam 4
Exam 4 from Spring 2009
- 1.Cholecystokinin (CCK) is a peptide hormone released from cells in the small intestine. It binds to receptors on:
- A.
S cells in the intestinal mucosa
- B.
Chief cells in the stomach
- C.
Duct epithelial cells pancreas
- D.
Ascinar cells in the pancreas
- E.
C and d are correct
- 2.In the mucosa of the stomach, the _____ cell is enriched for carbonic anhydrase and contains receptors for _____ .
- A.
G cell, gastrin
- B.
Duct epithelial cell, gastrin
- C.
Duct epithelial cell, secretin
- D.
Parietal cell, gastrin
- E.
Chief, CCK
- 3.In the stomach, the region that is enriched for elastin and permits its expansion is the:
- A.
Mucosa
- B.
Submucosa
- C.
Muscular layer
- D.
Serosa
- E.
Mesothelium
- 4.Which of the following is (are) enzymes that act in the bulk fluid in the lumen of the intestine?
- A.
Pancreatic amylase
- B.
Trypsin
- C.
Carboxy peptidase
- D.
Maltase
- E.
A and b are correct
- 5.In the salivary glands of the mouth, Na+ channels are found predominately on the basilar membrane. The Na+/K+ ATPases are located on the _____ surface of the secretory epithelial cells. The _____ cells lack aquaporins.
- A.
Apical, duct
- B.
Apical, secretory
- C.
Basilar, secretory
- D.
Basilar, duct
- 6.Glycogen is a polymer of:
- A.
Amino acids
- B.
Cellulose
- C.
Glucose
- D.
Sucrose
- E.
Starch
- 7.When our mouth "waters" at the sight or smell of food. The source of this is effect is the:
- A.
Parasympathetic activation of salivary glands
- B.
Sympathetic activation of salivary glands
- C.
Parasympathetic activation of parietal cells
- D.
Sympathetic activation of gastric glands
- E.
Activation of salivary glands by gastrin
- 8.The cells that release glucose in response to low blood glucose are the:
- A.
Alpha cell of the endocrine pancreas
- B.
Beta cell of the endocrine pancreas
- C.
Epithelial cells of the small intestine
- D.
Acinar cells of the pancreas
- E.
Hepatocytes
- 9.Which of the following is (are) G-protein coupled receptors that affect acid secretion in the stomach?
- A.
Gastrin receptor
- B.
Acetylcholine receptor
- C.
H2 histamine receptor
- D.
K+/H+ ATP-dependent exchanger
- E.
All except d are correct
- 10.The role of lipase is to:
- A.
Digest lipids into a molecule of monoglyceride and two molecules of fatty acid
- B.
Eliminate waste products from hemoglobin breakdown
- C.
Emulsify lipid droplets into smaller droplets
- D.
Shuttle lipids across the epithelial cell plasma membrane
- E.
A and c are correct
- 11.Bile salts and bile acids are generated from cholesterol and glycine or taurine in the:
- A.
Intestinal epithelial cells
- B.
Epithelial cells of the gall bladder
- C.
Acinar cells of the pancreas
- D.
Duct cells of the pancreas
- E.
Hepatocytes in the liver
- 12.For lipids to enter adipocytes from chylomicrons, the enzyme lipoprotein lipase in endothelial cells:
- A.
Serves as a detergent to emulsify triglycerides
- B.
Transports the chylomicrons from the intestinal epithelial cells into blood
- C.
Converts triglycerides in the chylomicrons into fatty acids and monoglycerides
- D.
Converts fatty acids and monoglycerides in chylomicrons into triglycerides
- E.
A and d are correct
- 13.If you observe the smooth muscle of the gall bladder contract, the hormone that produced this response is likely:
- A.
Secretin
- B.
Gastrin
- C.
Histamine
- D.
Cholecystokinin (CCK)
- E.
Glucagon
- 14.In the process of digestion _____ enter the subclavian vein from the lymphatic system.
- A.
Amino acids
- B.
Monosaccharides
- C.
Disaccharides
- D.
Chylomicrons
- E.
Bile salts
- 15.Hexose sugars that diffuse across the basilar membrane of intestinal epithelial cells first enter the:
- A.
Common bile duct
- B.
Hepatic artery
- C.
Hepatic portal vein
- D.
Hepatocytes
- E.
Lymph in the lacteal
- 16.Type II diabetes results from the lack of _____ where as Type I diabetes results from a lack of _____ .
- A.
Functional pancreatic beta cells, functional glucagon receptors
- B.
Functional insulin receptors, functional pancreatic beta cells
- C.
Functional pancreatic beta cells, functional insulin receptors
- D.
Functional insulin receptors, functional pancreatic alpha cells
- E.
Functional glucagon receptors, functional pancreatic alpha cells
- 17.Individuals who can most effectively gain nutrition from milk can absorb _____ digested from _____ .
- A.
Glucose, protein
- B.
Glucose, lactose
- C.
Galactose, protein
- D.
Glucose, maltose
- E.
A and c are correct
- 18.After a large meal of bread and spaghetti you would expect _____ cells in the endocrine pancreas to be secreting ____ .
- A.
Alpha cells, glucagon
- B.
Acinar cells, amylase
- C.
Beta cells, insulin
- D.
Beta cells, glucagon
- E.
Adipocytes, triglycerides
- 19.Which of the following is NOT a brush border enzyme?
- A.
Sucrase
- B.
Maltase
- C.
Carboxypeptidase
- D.
Amylase
- E.
Lactase
- 20.Amino acids in the small intestine move from the lumen of the small intestine into the epithelial cells by:
- A.
Osmosis
- B.
Passive diffusion down a concentration gradient
- C.
Passive diffusion through a transmembrane Na+ channel
- D.
Cotransport with Na+
- E.
B and c are correct
- 21.Elastic recoil of the lungs:
- A.
Would cause the lungs to collapse if it were not opposed
- B.
When combined with the elastic recoil properties of the chest wall, creates the subatmospheric intrapleural pressure
- C.
Forces air to leave the lungs during expiration
- D.
Both a and b are correct
- E.
All of the above are correct
- 22.An infant born with immature type II alveolar cells:
- A.
Will have abnormally low lung compliance
- B.
Will have too few alveoli for efficient gas exchange
- C.
Will have increased airway resistance
- D.
Will have emphysema
- E.
A and c are correct
- 23.The respiratory disease that results from excessive constriction of the smooth muscle that lines the airways is:
- A.
Asthma
- B.
Emphysema
- C.
Chronic bronchitis
- D.
Chronic obstructive pulmonary disease
- E.
All of the above
- 24.The conducting airways have a volume of about 150ml which is not capable of exchanging gases with the blood. This is referred to as:
- A.
Physiological dead space
- B.
Anatomical dead space
- C.
Alveolar dead space
- D.
None of the above
- 25.The vital capacity is the sum of:
- A.
Tidal volume + inspiratory reserve volume + expiratory reserve volume
- B.
Tidal volume + functional residual capacity
- C.
Tidal volume + residual volume
- D.
Inspiratory reserve volume + expiratory reserve volume
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