Chemistry MCQ
Bidirectional, instantaneous synaptic transmission is typical of __________.
Answer
Correct Answer:
Electrical synapses
Note: This Question is unanswered, help us to find answer for this one
Vesicles are located ____.
Answer
Correct Answer:
In presynaptic terminals
Note: This Question is unanswered, help us to find answer for this one
A drug that inhibits the action of the enzyme acetylcholinesterase will have the effect of ____.
Answer
Correct Answer:
Prolonging the action of acetylcholine at its synapses
Note: This Question is unanswered, help us to find answer for this one
Autoreceptors monitor the ____.
Answer
Correct Answer:
Amount of neurotransmitter released
Note: This Question is unanswered, help us to find answer for this one
________ open or close in response to binding specific molecules.
Answer
Correct Answer:
Chemically gated channels
Note: This Question is unanswered, help us to find answer for this one
"transporter" proteins transport neurotransmitters ____.
Answer
Correct Answer:
Back into the presynaptic neuron
Note: This Question is unanswered, help us to find answer for this one
For cells that communicate by electrical synapses, the message travels between cells via ________.
Answer
Correct Answer:
Gap junctions
Note: This Question is unanswered, help us to find answer for this one
"drugs that block mao-b are ________ agonists, whereas mao-a blockers are ________.
Answer
Correct Answer:
Norepinephrine; dopamine agonists
Note: This Question is unanswered, help us to find answer for this one
The effect of a neurotransmitter on a postsynaptic neuron is determined by the ____.
Answer
Correct Answer:
Receptors on the postsynaptic membrane
Note: This Question is unanswered, help us to find answer for this one
A metabotropic synapse, by way of its second messenger, ____.
Answer
Correct Answer:
Can influence activity in much or all of the postsynaptic cell
Note: This Question is unanswered, help us to find answer for this one
Releasing hormones are synthesized in the ____ and released in the ____.
Answer
Correct Answer:
Hypothalamus; anterior pituitary
Note: This Question is unanswered, help us to find answer for this one
Ionotropic effects ____.
Answer
Correct Answer:
may depolarize or hyperpolarize the postsynaptic membrane
Note: This Question is unanswered, help us to find answer for this one
Exocytosis is the process by which neurotransmitters are ____.
Answer
Correct Answer:
Released from the presynaptic neuron
Note: This Question is unanswered, help us to find answer for this one
Depolarization is to ____ as hyperpolarization is to ____
Answer
Correct Answer:
Excitation; inhibition
Note: This Question is unanswered, help us to find answer for this one
Damage to the ________ dopaminergic system would be expected to impair movement.
Answer
Correct Answer:
Nigrostriatal
Note: This Question is unanswered, help us to find answer for this one
Cholinergic neurons are thought to ________ within the ________.
Answer
Correct Answer:
Dorsolateral pons; elicit most of the aspects of REM sleep
Note: This Question is unanswered, help us to find answer for this one
All of the following are neurotransmitters except ________.
Answer
Correct Answer:
Serotonin (5-HT).
Note: This Question is unanswered, help us to find answer for this one
A(n) ________ is a drug that blocks or inhibits postsynaptic receptor effects.
Answer
Correct Answer:
Antagonist
Note: This Question is unanswered, help us to find answer for this one
