WHAT IS LIFE? ACHIEVE 1 TERM ACCESS CODE
5th Edition
ISBN: 9781319516116
Author: PHELAN
Publisher: MAC HIGHER
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Chapter 4, Problem 5SA
Summary Introduction
To analyze:
Why the plasma membrane is called a fluid mosaic.
Introduction:
The plasma membrane consists of a bilayer of lipids and various molecules (like transport proteins).
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How is the plasma membrane described according to the fluid mosaic model?
Which of the following describes the plasma membrane?
1) phospholipid bilayer surrounding the cell
2) a membrane composed of tiny shelves or cristae
3) single-layered membrane that surrounds the nucleus of the cell
4) double layer of protein enclosing the plasma
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 references
Chapter 4 Solutions
WHAT IS LIFE? ACHIEVE 1 TERM ACCESS CODE
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- Why is cell furrowing important in cell division? If cytokinesis did not occur, what would be the end result?arrow_forwardIn 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 cell membrane not an absolute barrier between the cytoplasm and the external environment?arrow_forward
- Why is cell membrane called fluid mosaic?arrow_forwardWhich component of the plasma membrane is primarily responsible for forming a physical barrier between the cell’s internal and external environments?arrow_forwardWhat are the main structural components of the plasma membrane according to the fluid mosaic model?arrow_forward
- Identify the basic structure of the plasma membrane. Label the diagram: What are the components of the plasma membrane? Outside the cell Inside the cell Polar head - Nonpolar tailarrow_forwardWhat is the plasma membrane made of? How does this affect the movement of lipid-soluble and non-lipids through the cell?arrow_forwardWhy is the inner membrane so highly folded?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