Answer Options:
A. ventricular relaxation
B. atrial contraction
C. diastole
D. systole
Answer: D. systole
Question: All of the following atoms make up organic molecules except:
Answer Options:
Potassium
Carbon
Nitrogen
Phosphorus
Answer: Potassium
Question: What role does gut microbiota play in the function of the GI tract?
Answer Options:
a) Helps maintain gut barrier
b) Optimizes the immune function of the gut
c) Protects gut from opportunistic disease-causing bacteria
d) All of the above
e) Only a and c
Answer: d) All of the above
Question: Empiricism asserts that people must look for truth in claims of supernatural or miraculous events rather than in demonstrable data discoverable by the five senses.
Answer Options:
True
False
Answer: False
Question: Which of the following would decrease the diffusion rate of carbon dioxide (CO2) across the alveolar/pulmonary capillary membrane?
Answer Options:
A. An increase in thickness of the membrane
B. An increase in surface area of the membrane
C. An increase in the partial pressure gradient
D. Two of the above
Answer: A. An increase in thickness of the membrane
Question: Chemical digestion begins in the mouth with the production of ______________.
Answer Options:
Amylase
Pepsin
Lipase
Protease
Answer: Amylase
Question: Which of the following may affect the affinity between hemoglobin and oxygen?
Answer Options:
A. A rise in blood pH
B. A drop in body temperature
C. Decreased cytosolic concentration of 2,3-bisphosphoglycerate
D. All of the above
Answer: D. All of the above
Question: At the end of a normal expiration, when outward air flow has ceased, alveolar pressure is
Answer Options:
A. less than atmospheric pressure.
B. greater than atmospheric pressure.
C. equal to atmospheric pressure.
D. described by none of the above.
Answer: C. equal to atmospheric pressure.
Question: Which of the following is the SMALLEST?
Answer Options:
Tissue
Organ
Molecule
Cell
Answer: Molecule
Question: Sympathetic stimulation causes smooth muscle to
Answer Options:
A. relax in arterioles supplying the digestive system.
B. constrict in arterioles supplying the heart muscle.
C. relax in arterioles supplying skeletal muscle.
D. constrict in arterioles supplying skeletal muscle.
Answer: B. constrict in arterioles supplying the heart muscle.
Question: The main determinant of resistance to blood flow is the
Answer Options:
A. blood vessel radius.
B. stroke volume.
C. blood vessel wall thickness.
D. cardiac output.
Answer: A. blood vessel radius.
Question: Aldosterone secretion
Answer Options:
A. occurs in the kidney.
B. is stimulated by angiotensin II.
C. is stimulated by increased Na+ concentration in the blood.
D. is described by more than one of the above.
Answer: D. is described by more than one of the above. (indicated by the selection)