Question

Which of the following criteria are used to determine if a substance is a neurotransmitter? I. The chemical must be synthesized in the neuron. II. When the neuron is active, the chemical is released and produces a response. III. Injection of the chemical mimics the effects of neuronal stimulation. IV. Mechanisms exist for the removal of the chemical.

Answer 1

Answer:

Explanation:

All of them. Dopamine is a neurotransmitter.

1. Dopamine is synthesized in the neuron by hydroxylating L-tyrosine via Tyrosine Kinase pathway.

2. Dopamine activates neuronal brain function.

3. Injection of L-DOPA mimics the dopamine and effects the same as neuronal stimulation.

4. Dopamine is converted to Adrenaline/Noradrenaline by Kinases and further removed from Kidneys by glucronidation.