BIO 203 EXAM 2 LEC 9-16 WITH 82 QUESTIONS AND ANSWERS
_________would result in a shift the hemoglobin-oxygen dissociation curve to the right.
a. An increase in PCO2
b. An increase in temperature
c. An increase in pH
d. (a) and (b) are correct; (c) is incorrect
e. (a), (b), and (c) are all correct - -d. (a) and (b) are correct; (c) is incorrect
-A blockage in the lymphatic system could have which of the following consequences?
a. An increase in interstitial fluid volume
b. An increase in blood volume returning to the right atrium
c. A reduction in colloid osmotic pressure
d. (a) and (b) are correct; (c) is incorrect
e. (a), (b), and (c) are all correct - -a. An increase in interstitial fluid volume
-A deoxygenated red blood cell returning to the heart from the systemic circulation would pass through
the right ventricle before passing through the left atrium.
True
False - -True
-A healthy young adult takes 12 breaths per minute, and inhales 500 mL of air with each breath, and has
150mL of dead space in the respiratory tract. What is this person's Alveolar Ventilation Rate (in
mL/min)? Enter your answer as a number. Do not enter letters or symbols. - -4200
-A healthy young adult takes 12 breaths per minute, and inhales 500 mL of air with each breath. What is
this persons Total Pulmonary Ventialtion Rate (in mL/min)? Enter your answer as a number. Do not
enter letters or symbols. - -6000
-A healthy young woman is breathing at 12 breaths per minute with a tidal volume of 500 ml. Which of
the following statements is correct if she changes her breathing pattern to 15 breaths per minute with a
tidal volume of 400 ml? (assume a dead space volume of 150 ml) - -Alveolar Ventilation Rate will
decrease.
-Acetylcholine is released by many types of neurons. Which type does not typically release ACh?
Somatic motor neurons
Sympathetic preganglionic neurons
Sympathetic postganglionic neurons
Parasympathetic preganglionic neurons
Parasympathetic postganglionic neurons - -Sympathetic postganglionic neurons
-Although many structures are missing, place the following regions of the cardiovascular system in the
order that a red blood cell would travel through them, starting at the right atrium
,Vena Cava
Pulmonary Artery
Right AV Valve
Aorta
Pulmonary Vein
Right Semilunar Valve - -1. Right AV Valve
2. Right Semilunar Valve
3. Pulmonary Artery
4. Pulmonary Vein
5. Aorta
6. Vena Cava
-Aortic stenosis occurs when the left semilunar (i.e., aortic) valve does not completely open during
ventricular ejection. Aortic stenosis could cause which of the following?
a. Increased cardiac output
b. Increased ESV
c. Reduced heart rate
d. (a) and (b) are correct; (c) is incorrect
e. (a), (b), and (c) are all correct - -b. Increased ESV
-As a component of the overall response to stress, epinephrine is released from cells of the adrenal
cortex into the interstitial compartment where it acts on neighboring cells.
True
False - -False
-At an oxygen partial pressure of 30mm Hg, approximately what percent of the myoglobin molecules
would be bound to a single O2 molecule? Enter your answer as a number. Do not enter letters or
symbols. (image not included) - -90
-At sea level, air pressure is 760 mm Hg and the partial pressure of oxygen is [sea_level] mm Hg. At
higher elevations, air pressure is reduced, and the partial pressure of oxygen is [elevated_pp] (lower /
the same / higher) even though the percent of oxygen in the air is [elevated_pc] (lower / the same /
higher). - -160, lower, the same
, -At what partial pressue of oxygen, in mm Hg, would the average hemoglobin molecule be bound to two
O2 molecules? Enter your answer as a number. Do not enter letters or symbols. (image not included) - -
35
-Calculate the cardiac output from the heart shown in the image below (in L/min). Enter your answer as
a number. Do not include letters or symbols. (image not included) - -5.250
-Calculate the heart rate of the heart in the image below (in beats per minute). Enter your answer as a
number. Do not enter letters or symbols. (image not included) - -75
-Calculate the stroke volume of the heart shown in the image below (in mL per beat). Enter a number.
Do not enter letters or symbols. (image not included) - -70
-Choose the correct answer to complete the statement
During expiration in mammals...
The gas pressure in the lungs is less than outside pressure.
Intrapleural pressure is greater than intra-alveolar pressure.
Elastic recoil of the lungs increases intra-alveolar pressure until it is greater than atmospheric pressure.
Contraction of the diaphragm increases intrathoracic pressure. - -Elastic recoil of the lungs increases
intra-alveolar pressure until it is greater than atmospheric pressure
-Choose the correct answer to complete the statement:
Air moves out of the lungs because...
the gas pressure in the lungs is less than outside pressure.
Intrathoracic pressure increases during expiration.
the thorax is muscular.
contraction of the diaphragm increases the volume of the pleural cavity.
All of the above answers are correct. - -Intrathoracic pressure increases during expiration.
-Colloid osmotic pressure, π, is determined by the concentration of _______________ in a fluid
compartment such as the plasma or interstitial fluid. - -protein
-Cortisol and ________________ are both hormones that bind to receptors found on/in liver cells, and
both promote gluconeogenesis and increases in blood glucose concentration. - -glucagon
-During breathing in humans, which of the following does NOT contribute to Vital Capacity?
Tidal Volume
Residual Volume
Expiratory Reserve Volume
Inspiratory Reserve Volume - -Residual Volume
-During normal quiet breathing, intrapleural pressure is negative during both inspiration and expiration.
True
False - -True
_________would result in a shift the hemoglobin-oxygen dissociation curve to the right.
a. An increase in PCO2
b. An increase in temperature
c. An increase in pH
d. (a) and (b) are correct; (c) is incorrect
e. (a), (b), and (c) are all correct - -d. (a) and (b) are correct; (c) is incorrect
-A blockage in the lymphatic system could have which of the following consequences?
a. An increase in interstitial fluid volume
b. An increase in blood volume returning to the right atrium
c. A reduction in colloid osmotic pressure
d. (a) and (b) are correct; (c) is incorrect
e. (a), (b), and (c) are all correct - -a. An increase in interstitial fluid volume
-A deoxygenated red blood cell returning to the heart from the systemic circulation would pass through
the right ventricle before passing through the left atrium.
True
False - -True
-A healthy young adult takes 12 breaths per minute, and inhales 500 mL of air with each breath, and has
150mL of dead space in the respiratory tract. What is this person's Alveolar Ventilation Rate (in
mL/min)? Enter your answer as a number. Do not enter letters or symbols. - -4200
-A healthy young adult takes 12 breaths per minute, and inhales 500 mL of air with each breath. What is
this persons Total Pulmonary Ventialtion Rate (in mL/min)? Enter your answer as a number. Do not
enter letters or symbols. - -6000
-A healthy young woman is breathing at 12 breaths per minute with a tidal volume of 500 ml. Which of
the following statements is correct if she changes her breathing pattern to 15 breaths per minute with a
tidal volume of 400 ml? (assume a dead space volume of 150 ml) - -Alveolar Ventilation Rate will
decrease.
-Acetylcholine is released by many types of neurons. Which type does not typically release ACh?
Somatic motor neurons
Sympathetic preganglionic neurons
Sympathetic postganglionic neurons
Parasympathetic preganglionic neurons
Parasympathetic postganglionic neurons - -Sympathetic postganglionic neurons
-Although many structures are missing, place the following regions of the cardiovascular system in the
order that a red blood cell would travel through them, starting at the right atrium
,Vena Cava
Pulmonary Artery
Right AV Valve
Aorta
Pulmonary Vein
Right Semilunar Valve - -1. Right AV Valve
2. Right Semilunar Valve
3. Pulmonary Artery
4. Pulmonary Vein
5. Aorta
6. Vena Cava
-Aortic stenosis occurs when the left semilunar (i.e., aortic) valve does not completely open during
ventricular ejection. Aortic stenosis could cause which of the following?
a. Increased cardiac output
b. Increased ESV
c. Reduced heart rate
d. (a) and (b) are correct; (c) is incorrect
e. (a), (b), and (c) are all correct - -b. Increased ESV
-As a component of the overall response to stress, epinephrine is released from cells of the adrenal
cortex into the interstitial compartment where it acts on neighboring cells.
True
False - -False
-At an oxygen partial pressure of 30mm Hg, approximately what percent of the myoglobin molecules
would be bound to a single O2 molecule? Enter your answer as a number. Do not enter letters or
symbols. (image not included) - -90
-At sea level, air pressure is 760 mm Hg and the partial pressure of oxygen is [sea_level] mm Hg. At
higher elevations, air pressure is reduced, and the partial pressure of oxygen is [elevated_pp] (lower /
the same / higher) even though the percent of oxygen in the air is [elevated_pc] (lower / the same /
higher). - -160, lower, the same
, -At what partial pressue of oxygen, in mm Hg, would the average hemoglobin molecule be bound to two
O2 molecules? Enter your answer as a number. Do not enter letters or symbols. (image not included) - -
35
-Calculate the cardiac output from the heart shown in the image below (in L/min). Enter your answer as
a number. Do not include letters or symbols. (image not included) - -5.250
-Calculate the heart rate of the heart in the image below (in beats per minute). Enter your answer as a
number. Do not enter letters or symbols. (image not included) - -75
-Calculate the stroke volume of the heart shown in the image below (in mL per beat). Enter a number.
Do not enter letters or symbols. (image not included) - -70
-Choose the correct answer to complete the statement
During expiration in mammals...
The gas pressure in the lungs is less than outside pressure.
Intrapleural pressure is greater than intra-alveolar pressure.
Elastic recoil of the lungs increases intra-alveolar pressure until it is greater than atmospheric pressure.
Contraction of the diaphragm increases intrathoracic pressure. - -Elastic recoil of the lungs increases
intra-alveolar pressure until it is greater than atmospheric pressure
-Choose the correct answer to complete the statement:
Air moves out of the lungs because...
the gas pressure in the lungs is less than outside pressure.
Intrathoracic pressure increases during expiration.
the thorax is muscular.
contraction of the diaphragm increases the volume of the pleural cavity.
All of the above answers are correct. - -Intrathoracic pressure increases during expiration.
-Colloid osmotic pressure, π, is determined by the concentration of _______________ in a fluid
compartment such as the plasma or interstitial fluid. - -protein
-Cortisol and ________________ are both hormones that bind to receptors found on/in liver cells, and
both promote gluconeogenesis and increases in blood glucose concentration. - -glucagon
-During breathing in humans, which of the following does NOT contribute to Vital Capacity?
Tidal Volume
Residual Volume
Expiratory Reserve Volume
Inspiratory Reserve Volume - -Residual Volume
-During normal quiet breathing, intrapleural pressure is negative during both inspiration and expiration.
True
False - -True
