PHRM30002 Questions
Exam Study Set
Co-transmission describes the process whereby:
A. a neurotransmitter can produce an enhanced effect by activating two or more signal
transduction mechanisms.
B. a single neurone can release more than one neurotransmitter substance.
C. different neurotransmitters produce the same functional effects.
D. different neurotransmitters produce synergistic effects. - Answer B. a single neurone
can release more than one neurotransmitter substance
Ganglionic transmission within the autonomic nervous system is mediated by:
A. noradrenaline acting on nicotinic receptors.
B. acetylcholine acting on nicotinic receptors
C. noradrenaline acting on α2-adrenoceptors
D. acetylcholine acting on muscarinic receptors - Answer B. acetylcholine acting on
nicotinic receptors
Which one of the following statements about the neurotransmitter noradrenaline (NA) is
INCORRECT?
A. Dopamine is a precursor molecule for NA synthesis.
B. L-Dihydroxyphenylalanine (L-DOPA) is a precursor molecule for NA synthesis
C. Monoamine oxidase can metabolise NA
D. Adrenaline is a precursor molecule for NA synthesis
E. Catechol O-methyl transferase (COMT) can metabolise NA - Answer D. Adrenaline is a
precursor molecule for NA synthesis
Which one of the following statements about the neurotransmitter acetylcholine (ACh) is
INCORRECT?
A. ACh is always released from post-ganglionic sympathetic neurones
B. ACh is degraded by the enzyme acetylcholine esterase.
Exam Study Set
Co-transmission describes the process whereby:
A. a neurotransmitter can produce an enhanced effect by activating two or more signal
transduction mechanisms.
B. a single neurone can release more than one neurotransmitter substance.
C. different neurotransmitters produce the same functional effects.
D. different neurotransmitters produce synergistic effects. - Answer B. a single neurone
can release more than one neurotransmitter substance
Ganglionic transmission within the autonomic nervous system is mediated by:
A. noradrenaline acting on nicotinic receptors.
B. acetylcholine acting on nicotinic receptors
C. noradrenaline acting on α2-adrenoceptors
D. acetylcholine acting on muscarinic receptors - Answer B. acetylcholine acting on
nicotinic receptors
Which one of the following statements about the neurotransmitter noradrenaline (NA) is
INCORRECT?
A. Dopamine is a precursor molecule for NA synthesis.
B. L-Dihydroxyphenylalanine (L-DOPA) is a precursor molecule for NA synthesis
C. Monoamine oxidase can metabolise NA
D. Adrenaline is a precursor molecule for NA synthesis
E. Catechol O-methyl transferase (COMT) can metabolise NA - Answer D. Adrenaline is a
precursor molecule for NA synthesis
Which one of the following statements about the neurotransmitter acetylcholine (ACh) is
INCORRECT?
A. ACh is always released from post-ganglionic sympathetic neurones
B. ACh is degraded by the enzyme acetylcholine esterase.
