EBK BIOLOGY
EBK BIOLOGY
5th Edition
ISBN: 9780100667976
Author: Maier
Publisher: YUZU
bartleby

Concept explainers

bartleby

Videos

Question
Book Icon
Chapter 20, Problem 1LTB
Summary Introduction

To analyze:

The structure of a virus and a bacterium.

Introduction:

The bacteria are the prokaryotic organism, which is living and posses all the characteristics of the cells. The viruses are the infectious agents, having nucleic acids and a protein covering, which need a living host to replicate.

Expert Solution & Answer
Check Mark

Explanation of Solution

The structure of a typical bacterium lacks a nucleus and membrane-bound organelles, that is why they are classified as prokaryotes. The outer layer of the bacteria is referred to as a capsule, which is the protective layer. The capsule surrounds the cell envelope of the bacteria. They have their genetic material located at a particular region in the cytoplasm known as the nucleoid. The ribosome of 70S type is also present in the cytoplasm. On the outer surface, flagella and pili are found. The flagella are a hair-like structure that helps in locomotion. The pili help the bacteria in adhesion to the surface.

All viruses have a nucleic acid genome, either DNA or RNA. A protein capsid is a protein covering around the genome of a virus. It forms nucleo-capsid together with the nucleic acid genome. It is formed of several oligomeric structural subunits that are known as protomers. The sheath is an external covering like structure that wraps the protruding tail fibers. Tail fiber is a tail-like structure that acts as a chemical sensor for the virus to identify the receptors present on the surface of the host cell. End plate helps in the attachment of the virus to the host cell.

Conclusion

The bacterium is a prokaryotic cell having a cell wall, cytoplasm, ribosome, and the nucleoid. The virus is made up of head and tail region, with genetic material present in the head region inside a protein capsid. The tail region has an end plate, which is the

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Students have asked these similar questions
Find the dental formula and enter it in the following format: I3/3 C1/1 P4/4 M2/3 = 42 (this is not the correct number, just the correct format) Please be aware: the upper jaw is intact (all teeth are present). The bottom jaw/mandible is not intact. The front teeth should include 6 total rectangular teeth (3 on each side) and 2 total large triangular teeth (1 on each side).
Answer i
Answer
Knowledge Booster
Background pattern image
Biology
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Intro To Health Care
Health & Nutrition
ISBN:9781337338295
Author:Mitchell
Publisher:Cengage
Text book image
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
Text book image
Biology Today and Tomorrow without Physiology (Mi...
Biology
ISBN:9781305117396
Author:Cecie Starr, Christine Evers, Lisa Starr
Publisher:Cengage Learning
Text book image
Concepts of Biology
Biology
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:OpenStax College
Text book image
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
Biology
ISBN:9781305967359
Author:STARR
Publisher:CENGAGE L
Text book image
Science Of Agriculture Biological Approach
Biology
ISBN:9780357229323
Author:Herren
Publisher:Cengage
What Is A Virus ? ; Author: Peekaboo Kidz;https://www.youtube.com/watch?v=YS7vsBgWszI;License: Standard YouTube License, CC-BY