PSB Exam 1 Study Guide 2024/2025
Exam Questions and Answers | A+
Score Assured
Depolarization of the axon terminal causes influx of what ion? - 🧠ANSWER
✔✔Calcium
What is triggered by influx of the ion listed above? - 🧠ANSWER
✔✔exocytosis
What are the two basic mechanisms for inactivation neurotransmitter in the
synaptic cleft? - 🧠ANSWER ✔✔After a chemical is released, it must be
inactivated. Inactivation can be through a reuptake mechanism or by an
enzyme that stops the action of the chemical.
Neurotransmitters: - 🧠ANSWER ✔✔communicate locally across
the synapse
Neuromodulators: - 🧠ANSWER ✔✔communicate with target cells more
distant than the synapse by diffusing away from the point of release
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 1
STATEMENT. ALL RIGHTS RESERVED
,A _____________ synapse is comprised of an axon of a "transmitting"
neuron synapsing on the dendrite of a "receiving" neuron - 🧠ANSWER
✔✔axo dendritic
List one catecholaminergic drug and its effects on synaptic transmission,
being sure to indicate which catecholamine the drug affects - 🧠ANSWER
✔✔Cocaine, no re-uptake of dopamine so there is a ton of dopamine in
synaptic cleft making guy have a lot of euphoria
The anti-psychotic drug haloperidol is particularly selective for dopamine
_______ receptors..
A) D1
B) D2
C) D3
D) auto- - 🧠ANSWER ✔✔B) D2
Most antipsychotic medications act by blocking _______ receptors.
A) serotonergic
B) dopaminergic
C) cholinergic
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 2
STATEMENT. ALL RIGHTS RESERVED
, D) muscarinic - 🧠ANSWER ✔✔B) dopaminergic
List one cholinergic drug and its effect on synaptic transmission -
🧠ANSWER ✔✔nicotine imitates acetylcholine in nicotinic receptors,
opening ion channels and starting action potential impulse
List one seretonic drug and its effects on synaptic transmission -
🧠ANSWER ✔✔Proxil, Zoloft, etc... Ecstasy, reversed re-uptake! Increases
serotonin release and blocks reuptake. Afterwards, Less serotonin is
available for release and previous autoreceptor. make person less
sad/gloomy/depressed
Define G-protein linked receptor - 🧠ANSWER ✔✔A receptor that is linked
to a G protein to activate another protein far away
Acetylcholine (ACh) - 🧠ANSWER ✔✔Main neurotransmitter for muscle
control.
-2 receptor types:
Nicotinic: a CNS stimulant and active ingredient in tobacco
Muscarninic: a poisenous substance found in some mushrooms.
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 3
STATEMENT. ALL RIGHTS RESERVED
Exam Questions and Answers | A+
Score Assured
Depolarization of the axon terminal causes influx of what ion? - 🧠ANSWER
✔✔Calcium
What is triggered by influx of the ion listed above? - 🧠ANSWER
✔✔exocytosis
What are the two basic mechanisms for inactivation neurotransmitter in the
synaptic cleft? - 🧠ANSWER ✔✔After a chemical is released, it must be
inactivated. Inactivation can be through a reuptake mechanism or by an
enzyme that stops the action of the chemical.
Neurotransmitters: - 🧠ANSWER ✔✔communicate locally across
the synapse
Neuromodulators: - 🧠ANSWER ✔✔communicate with target cells more
distant than the synapse by diffusing away from the point of release
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 1
STATEMENT. ALL RIGHTS RESERVED
,A _____________ synapse is comprised of an axon of a "transmitting"
neuron synapsing on the dendrite of a "receiving" neuron - 🧠ANSWER
✔✔axo dendritic
List one catecholaminergic drug and its effects on synaptic transmission,
being sure to indicate which catecholamine the drug affects - 🧠ANSWER
✔✔Cocaine, no re-uptake of dopamine so there is a ton of dopamine in
synaptic cleft making guy have a lot of euphoria
The anti-psychotic drug haloperidol is particularly selective for dopamine
_______ receptors..
A) D1
B) D2
C) D3
D) auto- - 🧠ANSWER ✔✔B) D2
Most antipsychotic medications act by blocking _______ receptors.
A) serotonergic
B) dopaminergic
C) cholinergic
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 2
STATEMENT. ALL RIGHTS RESERVED
, D) muscarinic - 🧠ANSWER ✔✔B) dopaminergic
List one cholinergic drug and its effect on synaptic transmission -
🧠ANSWER ✔✔nicotine imitates acetylcholine in nicotinic receptors,
opening ion channels and starting action potential impulse
List one seretonic drug and its effects on synaptic transmission -
🧠ANSWER ✔✔Proxil, Zoloft, etc... Ecstasy, reversed re-uptake! Increases
serotonin release and blocks reuptake. Afterwards, Less serotonin is
available for release and previous autoreceptor. make person less
sad/gloomy/depressed
Define G-protein linked receptor - 🧠ANSWER ✔✔A receptor that is linked
to a G protein to activate another protein far away
Acetylcholine (ACh) - 🧠ANSWER ✔✔Main neurotransmitter for muscle
control.
-2 receptor types:
Nicotinic: a CNS stimulant and active ingredient in tobacco
Muscarninic: a poisenous substance found in some mushrooms.
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 3
STATEMENT. ALL RIGHTS RESERVED
