What Appears to Be an Early Step in the Process

question 192

Multiple Choice

What appears to be an early step in the process of vesicle fusion to its target compartment?

• A)swelling of the vesicle
• B)shrinkage of the vesicle
• C)tethering of vesicles to the target compartment by extended,fibrous proteins
• D)a change in charge at the vesicle surface
• E)dissociation of many lipids from the vesicle membrane

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Definitions:

Endorphins

Natural, pain-relieving chemicals produced by the body that promote a sense of well-being and can diminish the perception of pain.

Acetylcholine

A neurotransmitter in the central and peripheral nervous system that plays a key role in muscle activation and cognitive functions.

Dopamine

A neurotransmitter involved in the regulation of movement, attention, learning, reward, and emotional responses in the brain.

Motor Neuron

A type of neuron that sends impulses from the central nervous system to muscles or glands, initiating movement or action.