GCU BIO322 EXAM 3 WITH 100%
APPROVED SOLUTIONS 2026/2027
STUDY SET
1. What kind of CNS response is anxiety?
A. Rest and digest
B. Fight or flight; sympathetic
C. Parasympathetic activation
D. Cortical depression
Answer: B
Rationale: Anxiety triggers the sympathetic nervous system, preparing the body
for perceived threat (fight or flight).
2. Which disorder is characterized by recurring panic attacks with at least one
month of consistent fear of having another attack?
A. Generalized anxiety disorder
B. Panic disorder
C. Agoraphobia
D. Social phobia
Answer: B
Rationale: Panic disorder involves recurrent, unexpected panic attacks followed by
persistent concern about additional attacks.
3. Generalized anxiety disorder (GAD) is characterized by excessive worry lasting
for:
A. 2 weeks
B. 1 month
C. 6 months or longer
D. 12 months
,Answer: C
Rationale: DSM-5 criteria for GAD require excessive anxiety and worry occurring
more days than not for at least 6 months.
4. Which symptom is commonly associated with generalized anxiety disorder?
A. Hallucinations
B. Muscle tension and easy fatigability
C. Flashbacks
D. Dissociative episodes
Answer: B
Rationale: GAD presents with muscle tension, fatigue, sleep disturbance, and
irritability, not psychotic symptoms.
5. Specific phobia is best described as:
A. Fear of social judgment
B. Fear of specific objects or situations
C. Fear of open spaces
D. Generalized worry
Answer: B
Rationale: Specific phobia involves marked fear or anxiety about a particular
object or situation (e.g., spiders, heights).
6. Social phobia (social anxiety disorder) involves fear of:
A. Closed spaces
B. Being judged or embarrassed in public
C. Losing control
D. Illness
Answer: B
Rationale: Social anxiety disorder is characterized by fear of negative evaluation in
social or performance situations.
, 7. Agoraphobia is defined as fear of:
A. Enclosed spaces
B. Open or public spaces where escape might be difficult
C. Social interactions
D. Specific animals
Answer: B
Rationale: Agoraphobia involves anxiety about being in places where escape may
be hard, such as crowds, bridges, or public transport.
8. Which neurotransmitter is most implicated in anxiety disorders?
A. Dopamine
B. Acetylcholine
C. GABA (gamma-aminobutyric acid)
D. Histamine
Answer: C
Rationale: Reduced GABA activity in the brain is associated with increased
anxiety. Benzodiazepines enhance GABA.
9. Which class of medication is first-line for panic disorder?
A. Beta-blockers
B. SSRIs (selective serotonin reuptake inhibitors)
C. Antipsychotics
D. Mood stabilizers
Answer: B
Rationale: SSRIs (e.g., sertraline, paroxetine) are first-line for panic disorder due
to efficacy and tolerability.
10. A patient with panic disorder reports palpitations, trembling, and fear of dying.
These symptoms typically peak within:
A. 1-2 hours
B. 10 minutes
APPROVED SOLUTIONS 2026/2027
STUDY SET
1. What kind of CNS response is anxiety?
A. Rest and digest
B. Fight or flight; sympathetic
C. Parasympathetic activation
D. Cortical depression
Answer: B
Rationale: Anxiety triggers the sympathetic nervous system, preparing the body
for perceived threat (fight or flight).
2. Which disorder is characterized by recurring panic attacks with at least one
month of consistent fear of having another attack?
A. Generalized anxiety disorder
B. Panic disorder
C. Agoraphobia
D. Social phobia
Answer: B
Rationale: Panic disorder involves recurrent, unexpected panic attacks followed by
persistent concern about additional attacks.
3. Generalized anxiety disorder (GAD) is characterized by excessive worry lasting
for:
A. 2 weeks
B. 1 month
C. 6 months or longer
D. 12 months
,Answer: C
Rationale: DSM-5 criteria for GAD require excessive anxiety and worry occurring
more days than not for at least 6 months.
4. Which symptom is commonly associated with generalized anxiety disorder?
A. Hallucinations
B. Muscle tension and easy fatigability
C. Flashbacks
D. Dissociative episodes
Answer: B
Rationale: GAD presents with muscle tension, fatigue, sleep disturbance, and
irritability, not psychotic symptoms.
5. Specific phobia is best described as:
A. Fear of social judgment
B. Fear of specific objects or situations
C. Fear of open spaces
D. Generalized worry
Answer: B
Rationale: Specific phobia involves marked fear or anxiety about a particular
object or situation (e.g., spiders, heights).
6. Social phobia (social anxiety disorder) involves fear of:
A. Closed spaces
B. Being judged or embarrassed in public
C. Losing control
D. Illness
Answer: B
Rationale: Social anxiety disorder is characterized by fear of negative evaluation in
social or performance situations.
, 7. Agoraphobia is defined as fear of:
A. Enclosed spaces
B. Open or public spaces where escape might be difficult
C. Social interactions
D. Specific animals
Answer: B
Rationale: Agoraphobia involves anxiety about being in places where escape may
be hard, such as crowds, bridges, or public transport.
8. Which neurotransmitter is most implicated in anxiety disorders?
A. Dopamine
B. Acetylcholine
C. GABA (gamma-aminobutyric acid)
D. Histamine
Answer: C
Rationale: Reduced GABA activity in the brain is associated with increased
anxiety. Benzodiazepines enhance GABA.
9. Which class of medication is first-line for panic disorder?
A. Beta-blockers
B. SSRIs (selective serotonin reuptake inhibitors)
C. Antipsychotics
D. Mood stabilizers
Answer: B
Rationale: SSRIs (e.g., sertraline, paroxetine) are first-line for panic disorder due
to efficacy and tolerability.
10. A patient with panic disorder reports palpitations, trembling, and fear of dying.
These symptoms typically peak within:
A. 1-2 hours
B. 10 minutes
