During exocytosis, integral proteins facing the outside of a vesicle are released into the surrounding medium. O incorporated into the plasma membrane so that they face the cytoplasm. released back into the cytoplasm.

During exocytosis, integral proteins facing the outside of a vesicle are released into the surrounding medium. O incorporated into the plasma membrane so that they face the cytoplasm. released back into the cytoplasm.

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter2: Cells And Cell Division

Section: Chapter Questions

Problem 2QP: Assign a function(s) to the following cellular structures: a. plasma membrane b. mitochondrion c....

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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

During exocytosis, integral proteins facing the outside of a vesicle are
O released into the surrounding medium.
O incorporated into the plasma membrane so that they face the cytoplasm.
O released back into the cytoplasm.

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