The differential release of small, clear vesicles, versus large, dense-core vesicles, is best explained by:
- biophysical differences in the vesicles' lipids that allow for easier fusion of small vesicles.
- a more sensitive calcium-release mechanism on the dense-core vesicles.
- a more delocalized calcium signal generated by intense neural stimulation.
- the presence of novel fusion proteins on the dense core vesicles that bind neuropeptides.
- All of the above
Answer: 3