Dopamine is a neurotransmitter that plays several important roles in the brain and body. Deficiency of dopamine can lead to neurological disorders and cause problems in muscle contraction or motor regulation. (a) Describe the initiation of muscle contraction by nerve impulses. (b) Name a drug that can be used to treat attention deficit hyperactivity disorder (ADHD), a disease often reported with motor regulation problems. Briefly describe the drug's major action.
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(a) The initiation of muscle contraction by nerve impulses involves the following steps: Show more…
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Dopamine is an important neurotransmitter. Its structure is show below: HO HO NH2 Dopamine (A) The isomers of Dopamine (A) (a) You need to draw 15 unique isomers. [6 marks] (b) You need to label at least one isomer containing the following: [5 marks] A) An alkene E) 5-membered ring I) A 3° amine B) An alkyne F) 9-membered ring J) An ether C) No rings (acyclic) G) An aromatic ring D) A 1° alcohol H) A 2° amine (More than one label can be assigned to the same isomer) Bonus: What is dopamine's function in the human body? [2 marks]
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