PNB Exam III questions and answers
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Lipoprotein lipase is found... - ANS ✔✔In capillary beds surrounding adipose tissue
During the fed-state and as a net effect.... - ANS ✔✔the liver forms glycogen
Charlie has a blood test that shows a normal level of LDLs but an elevated level of HDLs in his
blood. Since his family has a history of cardiovascular disease, he wonders if he should modify
his lifestyle. Base just on the information give, What would you tell him? - ANS ✔✔He should
not be concerned, since the high levels of HDLs indicate that a considerable amount of
cholesterol is being removed from the peripheral tissues
Regarding chylomicrons, which of the following statements is FALSE? - ANS ✔✔They are
synthesized in hepatocytes
The fundus of stomach relaxes as food moves through esophagus. This process is called - ANS
✔✔Receptive Relaxation
Which of the following increases bile synthesis - ANS ✔✔secretin
___ is usually located on the luminal (apical) side of the pancreatic HCO3- secreting cell - ANS
✔✔Na-HCO3 exchanger
When salivary gland is activated, the ductal modification reduces. [K] will ____ in saliva
(compared to resting salivary secretion) - ANS ✔✔decrease
, Bile salts are DIRECTLY involved in the following process(es) of lipid digestion and absorption -
ANS ✔✔micelles formation
Insulin directly increases the entry of glucose into - ANS ✔✔Adipose tissue
If only insulin but not glucagon is secreted when plasma amino acids are elevated, what could
happen? - ANS ✔✔1. Hypoglycemia after a protein rich meal
2. Amino acids are used for protein synthesis instead of providing energy source
All of the following are true about leptin EXCEPT - ANS ✔✔Leptin is secreted from the
hypothalamus
Which of the following would be least likely to be seen 14 days after a rat is injected with a drug
that kills all of its pancreatic Beta cells - ANS ✔✔A fall in the plasma amino acid concentration
An insulin to glucagon ration of 0.4 will - ANS ✔✔activate perilipin phosphorylation
A molecule that activates GI smooth Gs receptor will - ANS ✔✔inhibit smooth muscle
contraction
Which of the following is not involved in the secretion of insulin in the pancreas - ANS ✔✔Cell
hyperpolarization
Glut2 transporters - ANS ✔✔Are readily expressed in the cell membrane of hepatocytes
The gastric emptying rate can be increased by - ANS ✔✔increased action of VIP in the pyloric
sphincter
rated A+
Lipoprotein lipase is found... - ANS ✔✔In capillary beds surrounding adipose tissue
During the fed-state and as a net effect.... - ANS ✔✔the liver forms glycogen
Charlie has a blood test that shows a normal level of LDLs but an elevated level of HDLs in his
blood. Since his family has a history of cardiovascular disease, he wonders if he should modify
his lifestyle. Base just on the information give, What would you tell him? - ANS ✔✔He should
not be concerned, since the high levels of HDLs indicate that a considerable amount of
cholesterol is being removed from the peripheral tissues
Regarding chylomicrons, which of the following statements is FALSE? - ANS ✔✔They are
synthesized in hepatocytes
The fundus of stomach relaxes as food moves through esophagus. This process is called - ANS
✔✔Receptive Relaxation
Which of the following increases bile synthesis - ANS ✔✔secretin
___ is usually located on the luminal (apical) side of the pancreatic HCO3- secreting cell - ANS
✔✔Na-HCO3 exchanger
When salivary gland is activated, the ductal modification reduces. [K] will ____ in saliva
(compared to resting salivary secretion) - ANS ✔✔decrease
, Bile salts are DIRECTLY involved in the following process(es) of lipid digestion and absorption -
ANS ✔✔micelles formation
Insulin directly increases the entry of glucose into - ANS ✔✔Adipose tissue
If only insulin but not glucagon is secreted when plasma amino acids are elevated, what could
happen? - ANS ✔✔1. Hypoglycemia after a protein rich meal
2. Amino acids are used for protein synthesis instead of providing energy source
All of the following are true about leptin EXCEPT - ANS ✔✔Leptin is secreted from the
hypothalamus
Which of the following would be least likely to be seen 14 days after a rat is injected with a drug
that kills all of its pancreatic Beta cells - ANS ✔✔A fall in the plasma amino acid concentration
An insulin to glucagon ration of 0.4 will - ANS ✔✔activate perilipin phosphorylation
A molecule that activates GI smooth Gs receptor will - ANS ✔✔inhibit smooth muscle
contraction
Which of the following is not involved in the secretion of insulin in the pancreas - ANS ✔✔Cell
hyperpolarization
Glut2 transporters - ANS ✔✔Are readily expressed in the cell membrane of hepatocytes
The gastric emptying rate can be increased by - ANS ✔✔increased action of VIP in the pyloric
sphincter
