Order the steps of exocytosis:1
the vesicle membrane fuses with the plasma membrane.
2. the vesicle moves to the plasma membrane.
3. the vesicles contents are released to the extracellular fluid.
a. 1?2?3
b. 1?3?2
c. 2?1?3
d. 2?3?1
e. 3?1?2
ANSWER: c
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