NURS 6630 Week 1 Knowledge Check Answers

Question 1 1 pts

Question: Which enzyme is responsible for the breakdown of acetylcholine in the synaptic cleft?

Group of answer choices

Monoamine oxidase

Catechol-O-methyltransferase

Acetylcholinesterase

Glutaminase

Question 2 1 pts

Question: Which type of receptor undergoes a conformational change upon ligand binding and activates intracellular signaling cascades?

Group of answer choices

Ionotropic receptor

G-protein-coupled receptor

Nuclear receptor

Tyrosine kinase receptor

Question 3 1 pts

Question: Which part of the nervous system is responsible for the “fight or flight” response?

Group of answer choices

Parasympathetic nervous system

Sympathetic nervous system

Somatic nervous system

Central nervous system

Question 4 1 pts

Question: In which part of the neuron are neurotransmitters typically stored before release?

Group of answer choices

Soma

Dendrites

Axon terminal

Myelin sheath

Question 5 1 pts

Question: Which neurotransmitter is most closely associated with mood regulation and is often targeted in the treatment of depression?

Group of answer choices

Dopamine

Serotonin

Norepinephrine

Glutamate

Question 6 1 pts

Question: The blood-brain barrier (BBB) serves which primary function?

Group of answer choices

Enhancing neurotransmitter transmission

Protecting the brain from harmful substances

Facilitating neural plasticity

Increasing metabolic activity

Question 71 pts

Question: Which of the following best describes an antagonist’s action at a receptor site?

Group of answer choices

It activates the receptor, producing a biological response.

It inhibits the receptor, preventing a biological response.

It binds to the receptor without activating it, blocking other ligands.

It degrades the receptor, reducing receptor density.

Question 81 pts

Question: The limbic system is primarily involved in which of the following functions?

Group of answer choices

Motor coordination

Sensory processing

Emotional regulation

Language comprehension

Question 91 pts

Question: What is the primary neurotransmitter associated with the parasympathetic nervous system?

Group of answer choices

Norepinephrine

Dopamine

Acetylcholine

Serotonin

Question 101 pts

Question: The reuptake of which neurotransmitter is primarily targeted by selective serotonin reuptake inhibitors (SSRIs)?

Group of answer choices

Dopamine

Norepinephrine

Serotonin

Acetylcholine

Question 111 pts

Question: The hypothalamus plays a crucial role in which of the following functions?

Group of answer choices

Voluntary movement

Sensory processing

Homeostasis and hormonal regulation

Cognitive processing

Question 121 pts

Question: What is the primary function of G-protein-coupled receptors in neurotransmission?

Group of answer choices

Directly opening ion channels

Activating second messenger systems

Transporting neurotransmitters

Degrading neurotransmitters

Question 131 pts

Question: Which of the following is a second messenger commonly involved in G-protein-coupled receptor signaling?

Group of answer choices

ATP

cAMP

DNA

RNA

Question 141 pts

Question: Which of the following processes is involved in the synthesis of catecholamines?

Group of answer choices

Decarboxylation

Methylation

Hydroxylation

Phosphorylation

Question 151 pts

Question: The action of which class of drugs involves blocking the reuptake of norepinephrine and dopamine?

Group of answer choices

SSRIs

SNRIs

NDRIs

MAOIs

Question 161 pts

Question: Which type of receptor is directly linked to ion channels and opens in response to neurotransmitter binding?

Group of answer choices

G-protein-coupled receptor

Ionotropic receptor

Metabotropic receptor

Enzyme-linked receptor

Question 171 pts

Question: Which type of receptor operates through the fastest mechanism of action?

Group of answer choices

Ionotropic receptors

Metabotropic receptors

Nuclear receptors

Tyrosine kinase receptors

Question 181 pts

Question: Which part of the brain is primarily responsible for motor control and coordination?

Group of answer choices

Cerebellum

Basal ganglia

Brainstem

Limbic system

Question 191 pts

Question: Which neurotransmitter is synthesized from tryptophan?

Group of answer choices

Dopamine

Norepinephrine

Serotonin

Acetylcholine

Question 201 pts

Question: The enzyme catechol-O-methyltransferase (COMT) is involved in the metabolism of which neurotransmitter?

Group of answer choices

Serotonin

Dopamine

Acetylcholine

Glutamate

Question 211 pts

Question: What is the role of monoamine oxidase in the synaptic cleft?

Group of answer choices

Synthesizes neurotransmitters

Degrades neurotransmitters

Recycles neurotransmitters

Transports neurotransmitters

Question 221 pts

Question: Which of the following neurotransmitters is primarily inhibitory in the central nervous system?

Group of answer choices

Glutamate

GABA

Dopamine

Acetylcholine

Question 231 pts

Question: Which of the following best describes the process of neurotransmitter release from the presynaptic neuron?

Group of answer choices

Exocytosis

Endocytosis

Diffusion

Active transport

Question 241 pts

Question: Which lobe of the brain is primarily involved in executive functions such as planning, decision-making, and impulse control?

Group of answer choices

Temporal lobe

Parietal lobe

Frontal lobe

Occipital lobe

Question 251 pts

Question: Which of the following is NOT a method of terminating neurotransmitter action?

Group of answer choices

Reuptake

Enzymatic degradation

Diffusion

Ionization

Question 261 pts

Question: Which neurotransmitter is involved in the cholinergic system and associated with learning and memory?

Group of answer choices

Dopamine

Serotonin

Acetylcholine

Norepinephrine

Question 271 pts

Question: Which ion is primarily responsible for initiating neurotransmitter release in synaptic vesicles?

Group of answer choices

Sodium (Na+)

Potassium (K+)

Calcium (Ca2+)

Chloride (Cl-)

Question 281 pts

Question: Which structure in the brain acts as a relay station for sensory information?

Group of answer choices

Hypothalamus

Amygdala

Hippocampus

Thalamus

Question 291 pts

Question: Which neurotransmitter is primarily associated with the reward system in the brain?

Group of answer choices

Dopamine

Acetylcholine

Norepinephrine

Serotonin

Question 301 pts

Question: Which part of the brain is primarily responsible for regulating autonomic functions such as heart rate and respiration?

Group of answer choices

Cerebellum

Hypothalamus

Medulla oblongata

Thalamus