Neuronal Plasma Membrane Dynamics
A researcher observes that repeated stimulation of a neuron to fire action potentials causes a significant increase in the surface area of its plasma membrane. After the stimulation ends, the membrane’s surface area gradually returns to its original state. Which of the following molecular mechanisms best explains these observations?
A
Exocytosis followed by compensatory endocytosis
B
Increased synthesis of phospholipids during stimulation
C
Membrane stretching due to osmotic pressure changes
D
Fusion of the smooth ER with the plasma membrane
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