Essential Cell Biology (Fourth Edition)
Essential Cell Biology (Fourth Edition)
4th Edition
ISBN: 9780815345251
Author: Bruce Alberts, Dennis Bray, Karen Hopkin, Alexander D. Johnson, Julian Lewis, Martin Raff, Keith Roberts, Peter Walter
Publisher: W. W. Norton & Company
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Chapter 17, Problem 9Q
Summary Introduction

To compare: The major similarities between the intermediate filaments and myosin-II filaments in skeletal muscle cells.

Introduction: Intermediate filaments are rope-like structures that are found in the cytoplasm of almost all animals. These are also found in the nucleus of eukaryotic cell. It maintains the cell shape and rigidity. These have high tensile strength that provide mechanical support to the cell, but do not involve in the cell motility. In myosin-II filaments, each myosin-II molecules is an oligomer composed of one pair of identical heavy chains and two pairs of non-identical light chains. Each of the heavy chains has a globular head and a rod-like tail.

Summary Introduction

To compare: The major differences between the intermediate filaments and myosin-II filaments in skeletal muscle cells.

Introduction: Intermediate filaments are rope-like structures that are found in the cytoplasm of almost all animals. These are also found in the nucleus of eukaryotic cell. It maintains the cell shape and rigidity. These have high tensile strength that provide mechanical support to the cell, but do not involve in the cell motility. In myosin-II filaments, each myosin-II molecules is an oligomer composed of one pair of identical heavy chains and two pairs of non-identical light chains. Each of the heavy chains has a globular head and a rod-like tail.

Summary Introduction

To explain: How the differences in structureof intermediate filaments and myosin-II filaments are related with their function.

Introduction: Intermediate filaments are rope-like structures that are found in the cytoplasm of almost all animals. These are also found in the nucleus of eukaryotic cell. It maintains the cell shape and rigidity. These have high tensile strength that provide mechanical support to the cell, but do not involve in the cell motility. In myosin-II filaments, each myosin-II molecules is an oligomer composed of one pair of identical heavy chains and two pairs of non-identical light chains. Each of the heavy chains has a globular head and a rod-like tail.

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