BIO 235 FINAL EXAM QUESTIONS
WITH 100% CORRECT ANSWERS;
VERIFIED; LATEST UPDATE 2026
___ is when action potentials jump from one node of
Ranvier to the net
a) spike phase
b)myelin-mediated conduction
c)saltatory conduction
d)repolarization - correct answer- c)saltatory
conduction
____is constant maintenance o physiological variable
(temp, pH, etc) within a narrow range despite changing
external conditions
a) homeostasis
b)positive feedback
c)hemostasis
d)hetero-stasis - correct answer- a)
homeostasis
,____is the movement of solute particles from high
concentration to low concentration until equilibrium
a) diffusion
b) osmosis - correct answer- a) diffusion
____is the smallest body fluid compartment
a)extra cellular fluid
b)intracellular fluid
c)plasma - correct answer- c)plasma
. Which of the following plays a main role in stimulating
the secretion of the hormone gastrin?
A. the hormone secretin
B. the hormone cholecystokinin (CCK)
C. distention of the stomach
,D. an increase in [H+] in the lumen of the stomach -
correct answer- C. distention of the stomach
. Which of the following statements about neural control
of digestion is FALSE?
A. Parasympathetic stimulation is excitatory to digestion.
B. Sympathetic stimulation is generally inhibitory to
digestion.
C. Parasympathetic stimulation inhibits GI exocrine gland
secretions.
D. Nerve plexuses receive input from the autonomic
nervous system - correct answer- C.
Parasympathetic stimulation inhibits GI exocrine gland
secretions.
, 2. Which of the following processes is NOT associated
with gastrointestinal function?
A. digestion
B. filtration
C. secretion
D. motility - correct answer- B. filtration
2. Which of these are secretions of the parietal cells of the
gastric mucosa?
A. HCl and pepsinogen
B. pepsinogen and intrinsic factor
C. gastrin and intrinsic factor
WITH 100% CORRECT ANSWERS;
VERIFIED; LATEST UPDATE 2026
___ is when action potentials jump from one node of
Ranvier to the net
a) spike phase
b)myelin-mediated conduction
c)saltatory conduction
d)repolarization - correct answer- c)saltatory
conduction
____is constant maintenance o physiological variable
(temp, pH, etc) within a narrow range despite changing
external conditions
a) homeostasis
b)positive feedback
c)hemostasis
d)hetero-stasis - correct answer- a)
homeostasis
,____is the movement of solute particles from high
concentration to low concentration until equilibrium
a) diffusion
b) osmosis - correct answer- a) diffusion
____is the smallest body fluid compartment
a)extra cellular fluid
b)intracellular fluid
c)plasma - correct answer- c)plasma
. Which of the following plays a main role in stimulating
the secretion of the hormone gastrin?
A. the hormone secretin
B. the hormone cholecystokinin (CCK)
C. distention of the stomach
,D. an increase in [H+] in the lumen of the stomach -
correct answer- C. distention of the stomach
. Which of the following statements about neural control
of digestion is FALSE?
A. Parasympathetic stimulation is excitatory to digestion.
B. Sympathetic stimulation is generally inhibitory to
digestion.
C. Parasympathetic stimulation inhibits GI exocrine gland
secretions.
D. Nerve plexuses receive input from the autonomic
nervous system - correct answer- C.
Parasympathetic stimulation inhibits GI exocrine gland
secretions.
, 2. Which of the following processes is NOT associated
with gastrointestinal function?
A. digestion
B. filtration
C. secretion
D. motility - correct answer- B. filtration
2. Which of these are secretions of the parietal cells of the
gastric mucosa?
A. HCl and pepsinogen
B. pepsinogen and intrinsic factor
C. gastrin and intrinsic factor
