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Transporting Across Plasma Membrane: Active Transport
Exocytosis (Active Transport) — Definition & Examples

Practice problem

Exocytosis (Active Transport) — Definition & Examples

By RReagan Devine

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Reagan Devine
Deena Hauze

Which of the following best describes how transport vesicles are able to fuse with the plasma membrane to release materials outside of the cell in exocytosis?

Choose one answer

Option A: A

The cell signals for these vesicles to fuse with the plasma membrane when there is waste in the cell.

Option B: B

The plasma membrane naturally fuses with most things, as it is semipermeable.

Option C: C

The vesicles are positively charged and the plasma membrane is negatively charged, so they are attracted and fuse together.

Option D: D

The vesicles are made of the same material as the membrane, and therefore can fuse together.

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