EPPP Exam
Question 1. Which neurotransmitter is most strongly associated with
reward and reinforcement pathways in the brain?
A) Dopamine
B) Serotonin
C) Acetylcholine
D) Gamma-aminobutyric acid (GABA)
Answer: A
Explanation: Dopamine is critically involved in the brain’s reward
system and is linked to reinforcement, motivation, and pleasure.
Question 2. Which brain lobe is primarily responsible for processing
visual information?
A) Frontal lobe
B) Parietal lobe
C) Temporal lobe
D) Occipital lobe
Answer: D
Explanation: The occipital lobe, located at the back of the brain, is the
main center for visual processing.
, EPPP Exam
Question 3. Which structure connects the two cerebral hemispheres
and allows communication between them?
A) Thalamus
B) Corpus callosum
C) Hippocampus
D) Basal ganglia
Answer: B
Explanation: The corpus callosum is a large bundle of fibers that
connects the left and right hemispheres, facilitating interhemispheric
communication.
Question 4. Select the primary effect of selective serotonin reuptake
inhibitors (SSRIs).
A) Increase dopamine levels
B) Inhibit norepinephrine reuptake
C) Block serotonin reuptake
D) Enhance GABAergic transmission
Answer: C
Explanation: SSRIs work by blocking the reuptake of serotonin into
presynaptic neurons, increasing serotonin availability in the synaptic
cleft.
, EPPP Exam
Question 5. Which nervous system branch is responsible for "rest and
digest" activities?
A) Sympathetic nervous system
B) Parasympathetic nervous system
C) Somatic nervous system
D) Central nervous system
Answer: B
Explanation: The parasympathetic nervous system promotes relaxation,
digestion, and energy conservation.
Question 6. Which drug class is primarily used to treat psychotic
symptoms such as hallucinations and delusions?
A) Anxiolytics
B) Stimulants
C) Antipsychotics
D) Antidepressants
Answer: C
Explanation: Antipsychotics are medications designed to reduce or
eliminate psychotic symptoms.
, EPPP Exam
Question 7. The hypothalamus is most directly involved in regulating:
A) Voluntary muscle movement
B) Heartbeat rhythm
C) Homeostasis and endocrine functions
D) Language comprehension
Answer: C
Explanation: The hypothalamus is central to maintaining homeostasis
and controlling the endocrine system via the pituitary gland.
Question 8. Phenylketonuria (PKU) is best described as:
A) A chromosomal disorder
B) A single-gene metabolic disorder
C) A mitochondrial disease
D) An autoimmune disorder
Answer: B
Explanation: PKU is a genetic disorder caused by a mutation in a single
gene affecting phenylalanine metabolism.
Question 1. Which neurotransmitter is most strongly associated with
reward and reinforcement pathways in the brain?
A) Dopamine
B) Serotonin
C) Acetylcholine
D) Gamma-aminobutyric acid (GABA)
Answer: A
Explanation: Dopamine is critically involved in the brain’s reward
system and is linked to reinforcement, motivation, and pleasure.
Question 2. Which brain lobe is primarily responsible for processing
visual information?
A) Frontal lobe
B) Parietal lobe
C) Temporal lobe
D) Occipital lobe
Answer: D
Explanation: The occipital lobe, located at the back of the brain, is the
main center for visual processing.
, EPPP Exam
Question 3. Which structure connects the two cerebral hemispheres
and allows communication between them?
A) Thalamus
B) Corpus callosum
C) Hippocampus
D) Basal ganglia
Answer: B
Explanation: The corpus callosum is a large bundle of fibers that
connects the left and right hemispheres, facilitating interhemispheric
communication.
Question 4. Select the primary effect of selective serotonin reuptake
inhibitors (SSRIs).
A) Increase dopamine levels
B) Inhibit norepinephrine reuptake
C) Block serotonin reuptake
D) Enhance GABAergic transmission
Answer: C
Explanation: SSRIs work by blocking the reuptake of serotonin into
presynaptic neurons, increasing serotonin availability in the synaptic
cleft.
, EPPP Exam
Question 5. Which nervous system branch is responsible for "rest and
digest" activities?
A) Sympathetic nervous system
B) Parasympathetic nervous system
C) Somatic nervous system
D) Central nervous system
Answer: B
Explanation: The parasympathetic nervous system promotes relaxation,
digestion, and energy conservation.
Question 6. Which drug class is primarily used to treat psychotic
symptoms such as hallucinations and delusions?
A) Anxiolytics
B) Stimulants
C) Antipsychotics
D) Antidepressants
Answer: C
Explanation: Antipsychotics are medications designed to reduce or
eliminate psychotic symptoms.
, EPPP Exam
Question 7. The hypothalamus is most directly involved in regulating:
A) Voluntary muscle movement
B) Heartbeat rhythm
C) Homeostasis and endocrine functions
D) Language comprehension
Answer: C
Explanation: The hypothalamus is central to maintaining homeostasis
and controlling the endocrine system via the pituitary gland.
Question 8. Phenylketonuria (PKU) is best described as:
A) A chromosomal disorder
B) A single-gene metabolic disorder
C) A mitochondrial disease
D) An autoimmune disorder
Answer: B
Explanation: PKU is a genetic disorder caused by a mutation in a single
gene affecting phenylalanine metabolism.
