Describe exocytosis
A) Exocytosis occurs when a vesicle forms at the plasma membrane, encloses a large volume of extracellular fluid and contents, and then moves into the cytoplasm.
B) Exocytosis occurs when a vesicle forms inside the cell, encloses a large volume of intracellular fluid and contents, and then fuses with the plasma membrane to release it outside the cell.
C) Exocytosis occurs when water moves through aquaporin channels into a cell.
D) Exocytosis occurs when molecules are pumped against their concentration gradient into the cell.
E) Exocytosis occurs when ions pass through channel proteins to enter the cell.
Answer: B
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