BIOD322 (Motivated Behaviors, Homeostasis & Emotion) Comprehensive Test Review 2025

BIOD322

Motivated Behaviors, Homeostasis &
Emotion

Comprehensive Test Review (Qns & Ans)

2025



1. Which brain structure is primarily responsible for the regulation
of basic motivated behaviors such as hunger and thirst?
- A. Amygdala
- B. Hippocampus
- C. Hypothalamus
- D. Thalamus


ANS: C. Hypothalamus


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, - Rationale: The hypothalamus is crucial in regulating
homeostasis and drives such as hunger, thirst, and temperature
control.


2. Which neurotransmitter is most closely associated with the
reward pathway and pleasure-driven motivated behavior?
- A. Serotonin
- B. Dopamine
- C. GABA
- D. Acetylcholine


ANS: B. Dopamine
- Rationale: Dopamine plays a key role in the brain's reward
system and is closely linked to pleasure-motivated behaviors.


3. In the context of emotional processing, which brain region is
most significantly implicated in fear responses?
- A. Prefrontal cortex
- B. Hippocampus
- C. Amygdala
- D. Basal ganglia


©/2025

, ANS: C. Amygdala
- Rationale: The amygdala is critical in the processing and
memory of emotions, especially fear.


4. Which of the following is a primary symptom of disrupted
homeostasis?
- A. Normal blood sugar levels
- B. Elevated mood
- C. Imbalanced electrolyte levels
- D. Improved cognitive function


ANS: C. Imbalanced electrolyte levels
- Rationale: Homeostasis disruption often leads to biochemical
imbalances, such as in electrolyte levels, which can affect bodily
functions.


5. Which theory of emotion suggests that emotions result from the
perception of physiological changes?
- A. Cannon-Bard Theory
- B. James-Lange Theory
- C. Schachter-Singer Theory
- D. Lazarus Theory
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