6 - Neurotransmitter

Question 1

Where is a neurone is the action potential generated?

Answer 1

at the axon hillock

Question 2

Where is there a high concentration of mitochondria within the synapse and why?

Answer 2

in the axon terminal because energy is needed to release the neurotransmitter

Question 3

Give an example of each of the type of neurotransmitter

amino acids, amine and neuropeptides

Answer 3

amino acid - glutamate and GABA
amines - noreadrenlaine and adrenaline
neuropeptides - opioid peptides

Question 4

What is the process of rapid release?

Answer 4

• synaptic vesicles are filled with neurotransmitter and docked in the sympathetic zone ‘primed’
• interaction between synaptic vesicle and synaptic membrane proteins allows rapid response
• the Ca2+ channel interacts with the protein complex