Multiple Choice Questions (1 point each)
-
Which part of the brain is primarily responsible for motor control and coordination?
- A) Cerebellum
- B) Basal ganglia
- C) Brainstem
- D) Limbic system
-
Which ion is primarily responsible for initiating neurotransmitter release in synaptic vesicles?
- A) Sodium (Na⁺)
- B) Potassium (K⁺)
- C) Calcium (Ca²⁺)
- D) Chloride (Cl⁻)
-
What is the primary function of G-protein-coupled receptors in neurotransmission?
- A) Directly opening ion channels
- B) Activating second messenger systems
- C) Transporting neurotransmitters
- D) Degrading neurotransmitters
-
Which of the following is a second messenger commonly involved in G-protein-coupled receptor signaling?
- A) ATP
- B) cAMP
- C) DNA
- D) RNA
-
Which neurotransmitter is synthesized from tryptophan?
- A) Dopamine
- B) Norepinephrine
- C) Serotonin
- D) Acetylcholine
-
Which type of receptor is directly linked to ion channels and opens in response to neurotransmitter binding?
- A) G-protein-coupled receptor
- B) Ionotropic receptor
- C) Metabotropic receptor
- D) Enzyme-linked receptor
-
Which type of receptor operates through the fastest mechanism of action?
- A) Ionotropic receptors
- B) Metabotropic receptors
- C) Nuclear receptors
- D) Tyrosine kinase receptors
-
Which of the following neurotransmitters is primarily inhibitory in the central nervous system?
- A) Glutamate
- B) GABA
- C) Dopamine
- D) Acetylcholine
-
Which lobe of the brain is primarily involved in executive functions such as planning, decision-making, and impulse control?
- A) Temporal lobe
- B) Parietal lobe
- C) Frontal lobe
- D) Occipital lobe
-
The reuptake of which neurotransmitter is primarily targeted by selective serotonin reuptake inhibitors (SSRIs)?
- A) Dopamine
- B) Norepinephrine
- C) Serotonin
- D) Acetylcholine
Solution:
- Which part of the brain is primarily responsible for motor control and coordination?
- A) Cerebellum ✅ (Correct Answer)
- B) Basal ganglia
- C) Brainstem
- D) Limbic system
- Which ion is primarily responsible for initiating neurotransmitter release in synaptic vesicles?
- A) Sodium (Na⁺)
- B) Potassium (K⁺)
- C) Calcium (Ca²⁺) ✅ (Correct Answer)
- D) Chloride (Cl⁻)