18 Questions
What is the role of distinct key enzymes in neurotransmitter synthesis?
To synthesise each type of neurotransmitter
What is the effect of Na+ channel blockers on neural activity?
Decrease neural activity
What is the role of Ca2+ entry in neurotransmission?
To trigger neurotransmitter release from the presynapse
What is the effect of receptor agonists on neurotransmission?
Mimic or enhance neurotransmission
What is the function of SNARE complex in neurotransmission?
To inhibit neurotransmitter release
What is the effect of Ca2+ channel blockers on neurotransmission?
Decrease neurotransmitter release
What is the primary mechanism by which neurotransmitters are removed from the synaptic cleft?
Reuptake by presynaptic neurons
Which neurotransmitter is involved in the regulation of pituitary secretions?
Dopamine
What is the enzyme responsible for the biosynthesis of γ-aminobutyric acid (GABA)?
Glutamic acid decarboxylase
Which receptor is involved in the modulation of serotonin activity?
5-HT receptor
What is the major neurotransmitter of the CNS that is involved in fast excitatory transmission?
Glutamate
What is the mechanism by which certain drugs increase neurotransmitter activity?
Inhibiting degradation enzymes
What is the first step in the process of neurotransmission?
Neurotransmitter synthesis and storage
What is the purpose of neurotransmitter reuptake?
To terminate the signal
What is the role of receptors in neurotransmission?
To bind to neurotransmitters and transmit the signal
What is the final step in the process of neurotransmission?
Neurotransmitter degradation/reuptake
What is the purpose of neurotransmitter degradation?
To terminate the signal
What is the role of precursor molecules in neurotransmission?
To synthesize neurotransmitters
Test your knowledge of neurotransmitter synthesis, storage, and release, including the role of key enzymes, drugs, and ion channels. Learn how action potential and synaptic transmission work.
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