Answered: What membrane process releases…

What membrane process releases neurotransmitters into the synapse during an action potential O Active transport O Endocytosis O Phagocytosis O Exocytosis O None of these is correct

Human Physiology: From Cells to Systems (MindTap Course List)

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter4: Principles Of Neural And Hormonal Communication

Section: Chapter Questions

Problem 10RE

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Concept explainers

Osmosis

In simple words, osmosis is the slow, gradual movement of a liquid through a membrane. But there are nuances to this process. For instance, there has to be an imbalance in the distribution of solute in the liquid on either side of the membrane, which has to be semipermeable. The liquid in the region with a lower solute concentration moves to the region with a higher concentration, thereby displacing the solution in the process. The objective is to equalize the concentration of molecules on both sides of the membrane; the displacement of liquid can be viewed as a byproduct of this equalization. Since there is no energy required to carry osmosis, it is considered a passive process.

Question

What membrane process releases neurotransmitters into the synapse during an action potential
O Active transport
O Endocytosis
O Phagocytosis
O Exocytosis
None of these is correct

Expert Solution

Step 1

During an action potential, the vesicles containing neurotransmitters migrate toward the presynaptic membrane. The vesicles then fuse with the membrane and neurotransmitters are released into the synaptic cleft. Thus, the action potential is transferred to the next cell.

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