-Describe, in detail, composition of a phospholipid bilayer-Why is it energetically favorable for a lipid bilayer that is in a sheet to close?-Describe the process of membrane assembly in the Endoplasmic reticulum (ER). How issymmetric growth of membranes achieved here?-Describe several ways that membrane proteins associate with the membrane (i.e.integral, peripheral, how arrangement of amino acids in protein structure effect howproteins are linked to membrane)-How do detergents solubilize membrane proteins?

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-Describe, in detail, composition of a phospholipid bilayer

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter5: Membranes And Transport

Section: Chapter Questions

Problem 1TYK: In the fluid mosaic model: plasma membrane proteins orient their hydrophilic sides toward the...

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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

-Describe, in detail, composition of a phospholipid bilayer
-Why is it energetically favorable for a lipid bilayer that is in a sheet to close?
-Describe the process of membrane assembly in the Endoplasmic reticulum (ER). How is
symmetric growth of membranes achieved here?
-Describe several ways that membrane proteins associate with the membrane (i.e.
integral, peripheral, how arrangement of amino acids in protein structure effect how
proteins are linked to membrane)
-How do detergents solubilize membrane proteins?

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