Study Biology

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Cell Biology

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Set 3 Signaling Across Synapses

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Question 1

(Multiple Choice)

Free
The efficacy of synaptic transmission can change. What best represents synaptic facilitation?

A) A long-term increase in the number of synaptic contacts onto a postsynaptic neuron
B) An increase in the postsynaptic response to successive presynaptic action potentials
C) A decrease in the postsynaptic response to successive presynaptic action potentials
D) A decrease in the amplitude of the presynaptic action potential

Answer

Question 2

(Essay)

Free
Myasthenia gravis is an autoimmune neuromuscular disease that results in muscle weakness caused by circulating antibodies that block acetylcholine receptors. People with the disease are treated with acetylcholinesterase (AChase) inhibitors or immunosuppressants. Why do AChase inhibitors work?

Answer

AChase breaks down and inactivates ACh o...

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Question 3

(Essay)

Free
Why do you think there are so many types of presynaptic proteins involved in neurotransmitter release?

Answer

This is a thought question with many pos...

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