Neurotransmitter Effect P Acetylcholine (i) Primarily involved in control or alertness and wakefulness. Q Norepinephrine (ii) Plays a role in the regulation of mood, eating, sleeping and arousal. R Serotonin (iii) Major inhibitory neurotransmitter in the brain. S Gamma-aminobutyric acid (GABA) (iv) Involved in muscle action, learning and memory. (v) Involved in Parkinson's disease.
Matching Neurotransmitters to Effects
This question requires matching specific neurotransmitters with their primary functions or associated effects. Let's analyze each neurotransmitter:
Neurotransmitter Effects Analysis
- Acetylcholine (P): Known for its critical role at the neuromuscular junction, controlling muscle contractions. It is also vital for processes related to learning and memory. Therefore, Acetylcholine matches with (iv) Involved in muscle action, learning and memory.
- Norepinephrine (Q): This neurotransmitter acts as both a hormone and a brain neurotransmitter. It is strongly associated with alertness, arousal, and the "fight-or-flight" response. Matching it with (i) Primarily involved in control or alertness and wakefulness is appropriate.
- Serotonin (R): Commonly linked to mood regulation, Serotonin also influences appetite, sleep cycles, and arousal. Thus, it matches with (ii) Plays a role in the regulation of mood, eating, sleeping and arousal.
- Gamma-aminobutyric acid (GABA) (S): GABA is the principal inhibitory neurotransmitter in the central nervous system. Its main function is to reduce neuronal excitability throughout the nervous system. This aligns with (iii) Major inhibitory neurotransmitter in the brain.
Summary Table
| Neurotransmitter | Effect |
|---|---|
| P - Acetylcholine | (iv) Involved in muscle action, learning and memory. |
| Q - Norepinephrine | (i) Primarily involved in control or alertness and wakefulness. |
| R - Serotonin | (ii) Plays a role in the regulation of mood, eating, sleeping and arousal. |
| S - GABA | (iii) Major inhibitory neurotransmitter in the brain. |
Based on this analysis, the correct matching is P-(iv), Q-(i), R-(ii), S-(iii).
Important Questions from Biological Basis of Behaviour Neurons Synapses
Consider the following two statements and choose the correct option.
S1: Patients with Broca's aphasia have trouble producing speech.
S2: Patients with Wernicke's aphasia have trouble understanding what others say.- ________ in both lobes of the brain are responsible for coordination and interpretation of information as well as higher mental processing.
- Match the concerned human nervous system with their associated functions.
P. Sympathetic (i) Carrying messages from Central Nervous
System to muscles and glandsQ. Parasympathetic (ii) Carrying messages from senses to Central
Nervous SystemR. Afferent (iii) Maintaining body functions under normal
conditionsS. Efferent (iv) Fight-or-flight system If Central Nervous System = Brain + Spinal Cord, then Peripheral Nervous System = ?
- Match the neurotransmitters with their functions
P. Acetylcholine (i) Movement and pleasure sensation Q. Dopamine (ii) Sleep, anxiety, and appetite R. Serotonin (iii) Attention and memory S. Norepinephrine (iv) Arousal and mood
