Loose Leaf For Integrated Principles Of Zoology
18th Edition
ISBN: 9781260411140
Author: Cleveland P Hickman Jr. Emeritus, Susan L. Keen, David J Eisenhour Professor PhD, Allan Larson, Helen I'Anson Associate Professor of Biology
Publisher: McGraw-Hill Education
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Chapter 3, Problem 6RQ
Our current concept of the plasma membrane is called the fluid-mosaic model. Why?
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Chapter 3 Solutions
Loose Leaf For Integrated Principles Of Zoology
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- In the fluid mosaic model: plasma membrane proteins orient their hydrophilic sides toward the internal bilayer. phospholipids often flip-flop between the inner and outer layers. the mosaic refers to proteins attached to the underlying cytoskeleton. the fluid refers to the phospholipid bilayer. the mosaic refers to the symmetry of the internal membrane proteins and sterols.arrow_forwardWhy is the current model of Plasma membrane known as the “Fluid Mosaic Model”? Whatis the fluid, and in what sense is it fluid? What makes up the mosaic?arrow_forwardWhy is cell membrane called fluid mosaic?arrow_forward
- Cell membranes are described to be fluid mosaics. What does that mean? Are all membranes components free to diffuse laterally anywhere within the membrane? With referencesarrow_forwardShow the diagram of fluid mosaic model of plasma membrane?arrow_forwardWhy is the cell membrane described as a "fluid mosaicarrow_forward
- The fluid mosaic model describes a plasma membrane with a wide array of membrane proteins, which of the following is not a function of a membrane protein?Group of answer choices Selective transport channel Cell surface identity marker Enzyme Cell surface deflectorarrow_forwardWhat are the main structural components of the plasma membrane according to the fluid mosaic model?arrow_forwardWhy do most molecules require the assistance of proteins to cross the cellular membrane? What factors limit diffusion of molecules across the cellular membrane?arrow_forward
- A main function of the cell membrane is to be very selective as to what is able to cross through, a condition known as a ? barrier. In the fluid mosaic membrane model, lipids are organized in a ? arrangement, such that ? portions of the lipids are exposed to either the interior or exterior of the cell, while the ? lipid portions are sandwiched in the middle of the membrane.arrow_forwardList the functions of bacterial plasma membranes. Why must their plasma membranes carry out more functions than the plasma membranes of eukaryotic cells?arrow_forwardThe rigidity of the plasma membrane is an essential characteristic that allows for cells to survive and thrive in various environments. What are examples of conditions or molecules that can alter plasma membrane rigidity?arrow_forward
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The Cell Membrane; Author: The Organic Chemistry Tutor;https://www.youtube.com/watch?v=AsffT7XIXbA;License: Standard youtube license