Next Which of the following is true about integral proteins according to the fluid mosaic model? Integral proteins are embedded in the phospholipid bilayer. Integral proteins may attach to cholesterol. Integral proteins are free to leave the membrane. Integral proteins often undergo flip-flop movement.

Next Which of the following is true about integral proteins according to the fluid mosaic model? Integral proteins are embedded in the phospholipid bilayer. Integral proteins may attach to cholesterol. Integral proteins are free to leave the membrane. Integral proteins often undergo flip-flop movement.

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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What is the cause of the impermeability of plasma membranes to water-soluble molecules? Group of answer choices the nonpolar nature of water presence of phospholipid bilayer with a nonpolar/hydrophobic interior region presence of transmembrane proteins the presence of cellulose
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Which of the following factors would tend to increase membrane fluidity? A greater proportion of unsaturated phospholipids A relatively high protein content in the membrane A greater proportion of saturated phospholipids A lower temperature
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Being an integral membrane protein is critical to the function of which of the following protein complexes? Select all that apply. There is a minimum of one and a maximum of eight correct answers. Dynein Tubulin Integrin Complex III of the electron transport chain Collagen Aquaporin
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The cytoplasm of a certain cell is composed of a solution that is 98% water, 2% solutes. Consider the solution shown in the beaker in this picture: FOOE OOS Foor solution. [Select] Cytoplasm is 98% water, 2% solutes. The solution in the beaker would be considered when compared to [Select] The plasma membrane is impermeable to solutes. Beaker solution is 98% water, 2% solutes the cell. We would expect that the cell would [Select] if it was placed in the would account for whatever changes might occur to the volume of the cytoplasm of the cell when it is placed in the solution.
Our current concept of the plasma membrane is called the fluidmosaic model. Why?
What is unique about plasma membrane? Why is it advantageous for the plasma membrane to be fluid in nature? How does the sodium-potassium pump contribute to the net negative charge of the interior of the cell? In medicine, why is it important to administer only isotonic intravenous solutions to patients? Example of isotonic IV fluids are normal saline and lactated Ringer’s solution. Potassium is a necessary nutrient in order to maintain the function of our cells. What would occur to a person that is deficient in potassium?
Which of the following is most likely NOT a function of Peripheral Proteins? support for membranes enzymes anchor for integral membrane proteins receptors
The plasma membrane of E. coli is approximately 75% protein and 25% phospholipid by weight. It is known that the average membrane protein molecular weight is 50,000 Da and an average membrane phospholipid molecular weight is 750 Da. Calculate the number of membrane phospholipid molecules present per molecule of membrane protein. number of membrane phospholipid molecules: molecules Select the additional information that one would need to calculate the fraction of membrane surface covered by phospholipids. the average densities of a 50,000 Da protein and a 750 Da phospholipid the number of moles of protein and phospholipid in the membrane the surface area of the E. coli cell the average cross-sectional areas of a 50,000 Da protein and a 750 Da phospholipid in a bilayer