Nester's Microbiology: A Human Perspective
Nester's Microbiology: A Human Perspective
8th Edition
ISBN: 9780073522593
Author: Denise G. Anderson Lecturer, Sarah Salm, Deborah Allen
Publisher: McGraw-Hill Education
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Chapter 13, Problem 3MC
Summary Introduction

Introduction:

Viruses are the small entitiesthatcannot respire, reproduce, and grow outsidethe host cell. The virus infects other organisms and completes its lifecycle by using the host’scellularmachinery for their survival. Viruses only multiply in living systems (animal, plants, and bacteria) and their size ranges from 20 to 400nm (nanometer). Viruses are composed of nucleic acid (DNA, deoxyribonucleic acid, or RNA, ribonucleic acid) and protein coat (contain peptidoglycans and phospholipids). The viruses have beenclassified on the basis of different parameters by the International Committee on Taxonomy of Viruses (ICTV).

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What Is A Virus ? ; Author: Peekaboo Kidz;https://www.youtube.com/watch?v=YS7vsBgWszI;License: Standard YouTube License, CC-BY