Which one of the following is a neurotransmitter?
Correct answer: A. Dopamine
- A. Dopamine
- B. Hydrochloric acid
- C. Sodium ions
- D. Calcium ions
Explanation
'Dopamine' is a neurotransmitter that helps send signals in the brain. Neurotransmitters are chemicals made by nerve cells called neurons. They're used to communicate messages across different parts of the brain and between the brain and the rest of the body. 'Dopamine' is involved mainly in controlling movement.
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About Coordination and Control
Coordination depends on receptors, neurons, synapses and nerve impulses, with reflex actions traced through the reflex arc and the roles of major brain regions. Chemical coordination covers endocrine glands and hormones, including how hormones regulate growth, metabolism, reproduction and internal balance, unlike rapid nervous control.
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