vSNARE does what? Ensures that vesicles arrive at their correct location Drives the fusion of vesicle and target membranes Initiates the assembly of COPII onto the ER membrane Initiates the assembly of COPI onto the ER membrane

vSNARE does what? Ensures that vesicles arrive at their correct location Drives the fusion of vesicle and target membranes Initiates the assembly of COPII onto the ER membrane Initiates the assembly of COPI onto the ER membrane

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter5: Structure And Function Of Plasma Membranes

Section: Chapter Questions

Problem 15RQ: What happens to the membrane of a vesicle after exocytosis? It leaves the cell It is disassembled by...

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Concept explainers

Osmosis

In simple words, osmosis is the slow, gradual movement of a liquid through a membrane. But there are nuances to this process. For instance, there has to be an imbalance in the distribution of solute in the liquid on either side of the membrane, which has to be semipermeable. The liquid in the region with a lower solute concentration moves to the region with a higher concentration, thereby displacing the solution in the process. The objective is to equalize the concentration of molecules on both sides of the membrane; the displacement of liquid can be viewed as a byproduct of this equalization. Since there is no energy required to carry osmosis, it is considered a passive process.

Question

vSNARE does what?

		Ensures that vesicles arrive at their correct location
		Drives the fusion of vesicle and target membranes
		Initiates the assembly of COPII onto the ER membrane
		Initiates the assembly of COPI onto the ER membrane

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