PSIO 305 END OF COURSE 2025/2026 QUESTIONS WITH
ANSWERS GRADED A+
✔✔Which of the following statement is INCORRECT regarding a protein receptor that
carries out sensory transduction? - ✔✔It always depolarizes the sensory receptor cell
✔✔Which of the following state is INCORRECT about receptor potential - ✔✔it is
generated in sensory neurons
✔✔Odorant receptors are - ✔✔G-protein coupled receptors
✔✔Postganglionic neurons of the sympathetic nerve express which of the following
receptors at the synapse on their dendrites. - ✔✔N2 receptors
✔✔Where in the central nervous system do the preganglionic neurons of the
parasympathetic nervous system originate? - ✔✔brainstem and sacral region of the
spinal cord
✔✔β2 adrenergic receptor agonists are used to treat acute asthma symptoms by
eliciting a response similar to ________, which has a greater affinity for β2 receptors
and leads to dilation of the respiratory pathways. - ✔✔epinephrine
✔✔which cranial nerve contains 75% of the parasympathetic fibers? - ✔✔vagus
✔✔Which of the following is a potential role of endocrine cells in a endocrine reflex. -
✔✔All of above
✔✔Which of the following is INCORRECT about the hypothalamic-pituitary portal
system - ✔✔it connects median eminence and posterior pituitary
✔✔Which of the following hormones are bound to transport proteins during their
transport to target tissue? - ✔✔cortisol
✔✔Which of the following involves long-distance cell-to-cell communication? - ✔✔All of
above
✔✔Hippocampal stimulation will - ✔✔decrease cortisol release
✔✔removing hippocampal glucorcoticoid receptors will result in - ✔✔all of above
✔✔NE facilitate LTP through - ✔✔phosphorylating AMPA receptors
, ✔✔Chronically stressed animals typically show impaired long-term potentiation. Which
of the following action is likely a contributor to the impairment? - ✔✔genomic action of
glucocorticoids
✔✔Effects of glucocorticoids on long-term potentiation (LTP) depend on the timing.
Which of the following is true? - ✔✔prolonged exposure before LTP induction inhibits
LTP
✔✔Which of the following is NOT a function of the peripheral lymphoid tissue? -
✔✔allow lymphocyte to develop and mature
✔✔Opsonization facilitates - ✔✔phagocytosis
✔✔Which of the following is not part of the inflammation response - ✔✔activation of the
complement system
✔✔Helper T cells secrete cytokines to enhance the activity of the following immune
cells - ✔✔all of above
✔✔Which of the following is correct regarding T-independent antigen? - ✔✔it triggers
differentiation of plasma cells
✔✔Which of the following is correct regarding the immune response to a second
exposure to a viral pathogen with T-dependent antigen. - ✔✔all of above
✔✔How does sympathetic activity modulate pathogen-stimulated cytokine release? -
✔✔sympathetic activity suppresses IL-IB release
✔✔How does cortisol affect immune responses? - ✔✔enhances humoral but
suppresses cell-mediate immune responses
✔✔MHC is involved in which of the following immune activity? - ✔✔all of above
✔✔Which of the following immune cells are located mainly in tissues, not in the blood
circulation? - ✔✔mast cells
✔✔Which of the following is NOT part of the innate defense system - ✔✔cytotoxic T
cells
✔✔Which of the following molecules is NOT involved in antigen presentation to helper T
cells by macrophages? - ✔✔Class 1 MHC
ANSWERS GRADED A+
✔✔Which of the following statement is INCORRECT regarding a protein receptor that
carries out sensory transduction? - ✔✔It always depolarizes the sensory receptor cell
✔✔Which of the following state is INCORRECT about receptor potential - ✔✔it is
generated in sensory neurons
✔✔Odorant receptors are - ✔✔G-protein coupled receptors
✔✔Postganglionic neurons of the sympathetic nerve express which of the following
receptors at the synapse on their dendrites. - ✔✔N2 receptors
✔✔Where in the central nervous system do the preganglionic neurons of the
parasympathetic nervous system originate? - ✔✔brainstem and sacral region of the
spinal cord
✔✔β2 adrenergic receptor agonists are used to treat acute asthma symptoms by
eliciting a response similar to ________, which has a greater affinity for β2 receptors
and leads to dilation of the respiratory pathways. - ✔✔epinephrine
✔✔which cranial nerve contains 75% of the parasympathetic fibers? - ✔✔vagus
✔✔Which of the following is a potential role of endocrine cells in a endocrine reflex. -
✔✔All of above
✔✔Which of the following is INCORRECT about the hypothalamic-pituitary portal
system - ✔✔it connects median eminence and posterior pituitary
✔✔Which of the following hormones are bound to transport proteins during their
transport to target tissue? - ✔✔cortisol
✔✔Which of the following involves long-distance cell-to-cell communication? - ✔✔All of
above
✔✔Hippocampal stimulation will - ✔✔decrease cortisol release
✔✔removing hippocampal glucorcoticoid receptors will result in - ✔✔all of above
✔✔NE facilitate LTP through - ✔✔phosphorylating AMPA receptors
, ✔✔Chronically stressed animals typically show impaired long-term potentiation. Which
of the following action is likely a contributor to the impairment? - ✔✔genomic action of
glucocorticoids
✔✔Effects of glucocorticoids on long-term potentiation (LTP) depend on the timing.
Which of the following is true? - ✔✔prolonged exposure before LTP induction inhibits
LTP
✔✔Which of the following is NOT a function of the peripheral lymphoid tissue? -
✔✔allow lymphocyte to develop and mature
✔✔Opsonization facilitates - ✔✔phagocytosis
✔✔Which of the following is not part of the inflammation response - ✔✔activation of the
complement system
✔✔Helper T cells secrete cytokines to enhance the activity of the following immune
cells - ✔✔all of above
✔✔Which of the following is correct regarding T-independent antigen? - ✔✔it triggers
differentiation of plasma cells
✔✔Which of the following is correct regarding the immune response to a second
exposure to a viral pathogen with T-dependent antigen. - ✔✔all of above
✔✔How does sympathetic activity modulate pathogen-stimulated cytokine release? -
✔✔sympathetic activity suppresses IL-IB release
✔✔How does cortisol affect immune responses? - ✔✔enhances humoral but
suppresses cell-mediate immune responses
✔✔MHC is involved in which of the following immune activity? - ✔✔all of above
✔✔Which of the following immune cells are located mainly in tissues, not in the blood
circulation? - ✔✔mast cells
✔✔Which of the following is NOT part of the innate defense system - ✔✔cytotoxic T
cells
✔✔Which of the following molecules is NOT involved in antigen presentation to helper T
cells by macrophages? - ✔✔Class 1 MHC
