BMS 300 Exam Questions with verified
answers already passed (latest revision)
The predominant neurotransmitter receptor in muscle cells of the diaphragm is a : - correct
answer ✔✔nicotine acetylcholine receptor
During expiration and inspiration, the pressure inside the pleural sac bounded by the parietal
and visceral mesothelium is more _______ than ________. - correct answer ✔✔a. negative,
atmospheric pressure
b. negative, pressure in the alveoli
In the Bohr effect, the histamine residues in hemoglobin bind H+. The source of these proteins
is primarily from carbonic anhydrase acting on _______, and the effect of this H+ buffering is to
_______ the affinity of iron in hemoglobin for O2. - correct answer ✔✔CO2, decrease
Until the late 1930s, prolonged thoracic surgery was problematic because it required opening
the pleural sac. Which of the following could have been used to solve this problem? - correct
answer ✔✔a. place an airtight helmet on the patient and increase the pressure in the helmet
above atmospheric pressure
b. construct a room where the patients head was outside the room at atmospheric pressure in
the room could be reduced with pumps
In babies born prematurely, type II pneumocytes often fail to produce adequate amounts of
surfactant. The lack of surfactant: - correct answer ✔✔a. increases alveolar surface tension
c. increases elastic recoil
, During an asthmatic response to allergens, histamine is release. When the bronchiolar smooth
muscle binds histamine, the muscles ______ to ________ the resistance to air flow is. - correct
answer ✔✔contract, increase
Compared to blood in the vena cava, you would expect the peripheral chemosensors in the
carotid and aoritc bodies to monitor blood that is: - correct answer ✔✔a. higher in O2
d. lower in CO2
In mammals, most of the ammonia, which is the result of metabolizing ___________, is
converted to __________ in the liver. - correct answer ✔✔protein, urea
The driving force that moves water from the luminal to the basolateral side of the epithelial
cells in the proximal convoluted tubule results from: - correct answer ✔✔a. a lower water
concentration on the basolateral side of the epithelial cells
b. the effects of Na/K ATPase pumps moving Na+ from the epithelial cell cytoplasm into the
extracellular space on the basolateral side of the cell
There is a compound in licorice that when consumed in large amounts for a prolonged period,
increases levels of aldosterone available to affect kidney function. You would expect this
compound to: - correct answer ✔✔a. increases Na+ resorption from the distal convoluted
tubule
b. increase the retention of water as it follows Na+ across the distal convoluted tubule
epithelium
The aldosterone receptor is a ________ found in the _______. - correct answer ✔✔cytoplasmic
protein, cells of the distal convoluted tubule
answers already passed (latest revision)
The predominant neurotransmitter receptor in muscle cells of the diaphragm is a : - correct
answer ✔✔nicotine acetylcholine receptor
During expiration and inspiration, the pressure inside the pleural sac bounded by the parietal
and visceral mesothelium is more _______ than ________. - correct answer ✔✔a. negative,
atmospheric pressure
b. negative, pressure in the alveoli
In the Bohr effect, the histamine residues in hemoglobin bind H+. The source of these proteins
is primarily from carbonic anhydrase acting on _______, and the effect of this H+ buffering is to
_______ the affinity of iron in hemoglobin for O2. - correct answer ✔✔CO2, decrease
Until the late 1930s, prolonged thoracic surgery was problematic because it required opening
the pleural sac. Which of the following could have been used to solve this problem? - correct
answer ✔✔a. place an airtight helmet on the patient and increase the pressure in the helmet
above atmospheric pressure
b. construct a room where the patients head was outside the room at atmospheric pressure in
the room could be reduced with pumps
In babies born prematurely, type II pneumocytes often fail to produce adequate amounts of
surfactant. The lack of surfactant: - correct answer ✔✔a. increases alveolar surface tension
c. increases elastic recoil
, During an asthmatic response to allergens, histamine is release. When the bronchiolar smooth
muscle binds histamine, the muscles ______ to ________ the resistance to air flow is. - correct
answer ✔✔contract, increase
Compared to blood in the vena cava, you would expect the peripheral chemosensors in the
carotid and aoritc bodies to monitor blood that is: - correct answer ✔✔a. higher in O2
d. lower in CO2
In mammals, most of the ammonia, which is the result of metabolizing ___________, is
converted to __________ in the liver. - correct answer ✔✔protein, urea
The driving force that moves water from the luminal to the basolateral side of the epithelial
cells in the proximal convoluted tubule results from: - correct answer ✔✔a. a lower water
concentration on the basolateral side of the epithelial cells
b. the effects of Na/K ATPase pumps moving Na+ from the epithelial cell cytoplasm into the
extracellular space on the basolateral side of the cell
There is a compound in licorice that when consumed in large amounts for a prolonged period,
increases levels of aldosterone available to affect kidney function. You would expect this
compound to: - correct answer ✔✔a. increases Na+ resorption from the distal convoluted
tubule
b. increase the retention of water as it follows Na+ across the distal convoluted tubule
epithelium
The aldosterone receptor is a ________ found in the _______. - correct answer ✔✔cytoplasmic
protein, cells of the distal convoluted tubule
