Microbiology: An Evolving Science (Fourth Edition)
4th Edition
ISBN: 9780393615098
Author: John W. Foster, Joan L. Slonczewski
Publisher: W. W. Norton & Company
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Chapter 4, Problem 2TQ
Summary Introduction
To review:
The reason behind considering Rickettsia prowazekii as living, but not the viruses.
Introduction:
The living world shows a great range of diversities from species to species. The level of organization, as well as
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Which of the following highly contagious viruses is a single-stranded ribonucleic acid (RNA) virus with a helical capsid and envelope and is transmitted by coming in contact with respiratory secretions?
"This is a highly contagious respiratory illness transmitted when an infected person coughs or sneezes virus particles into the air," the health department said in a written statement. "It's so contagious that if one person is sick and spreading measles, nine out of 10 people around them who aren't immune will get it, too."
Group of answer choices
a. Measles
b. Parvovirus
c. Coxsackie virus A
d. Rhinovirus
Why does a virus need a host cell?
What is Periplasm in viruses?
Chapter 4 Solutions
Microbiology: An Evolving Science (Fourth Edition)
Ch. 4.1 - Prob. 1TQCh. 4.2 - Prob. 1TQCh. 4.2 - Prob. 2TQCh. 4.3 - Prob. 1TQCh. 4.3 - Prob. 2TQCh. 4.3 - Prob. 3TQCh. 4.3 - Prob. 4TQCh. 4.4 - Prob. 1TQCh. 4.4 - Prob. 2TQCh. 4.4 - Prob. 3TQ
Ch. 4.4 - Prob. 4TQCh. 4.4 - Prob. 5TQCh. 4.4 - Prob. 6TQCh. 4.4 - Prob. 7TQCh. 4.4 - Prob. 8TQCh. 4.6 - Prob. 1TQCh. 4 - Prob. 1RQCh. 4 - Prob. 2RQCh. 4 - Prob. 3RQCh. 4 - Prob. 4RQCh. 4 - Prob. 5RQCh. 4 - Prob. 6RQCh. 4 - Prob. 7RQCh. 4 - Prob. 8RQCh. 4 - Prob. 9RQCh. 4 - Prob. 1TQCh. 4 - Prob. 2TQCh. 4 - Prob. 3TQCh. 4 - Prob. 4TQCh. 4 - Prob. 5TQCh. 4 - Prob. 6TQCh. 4 - Prob. 7TQ
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- Where do - ss RNA viruses assemble? O 1) golgi O 2) nucleus O3) cytoplasm O 4) both the nucleus and cytoplasm O 5) Endoplasmic reticulum Type:Sarrow_forwardWhat type of genome is seen in most archaeal viruses?arrow_forwardViruses are made up of the same biomolecules as cellular organisms (DNA, RNA, proteins, lipids, etc.). They infect cells and replicate themselves using resources from the host cells. Scientists discovered a previously unknown strain of virus in the tropical Pacific Ocean and it can infect higher-order eukaryotes. Initial analysis revealed that the virus is mainly composed of nucleic acids, proteins, and lipids. Chemical analysis after complete hydrolysis revealed the following building blocks (by weight): Chemical components Nucleosides Amino acids Lipids, phosphates, and carbohydrates Percentage by weight 20 30 50 Analysis of percentages of nucleosides yielded the following results (by molar ratio): Nucleosides A G T C U Percentage by mole 19 29 19 29 4 Researchers determined that the lipids found in the virus form a bilayer membrane surrounding the virus, and are obtained from the membrane of the host cell during virus maturation and exit from host cell. Further…arrow_forward
- What viruses possess a double-stranded RNA genome and whatdiseases do they cause?arrow_forwardViruses are made up of the same biomolecules as cellular organisms (DNA, RNA, proteins, lipids, etc.), which are synthesized through enzymatic dehydration reactions from building blocks and disassembled by enzymatic hydrolysis. They infect cells and replicate themselves using resources from the host cells. Scientists discovered a previously unknown strain of virus in the tropical Pacific Ocean and it can infect higher-order eukaryotes. Initial analysis revealed that the virus is mainly composed of nucleic acids, proteins, and lipids. Chemical analysis after complete hydrolysis revealed the following building blocks (by weight): Chemical components Nucleosides Amino acids Lipids, phosphates, and carbohydrates Percentage by weight 20 30 50 Analysis of percentages of nucleosides yielded the following results (by molar ratio): Nucleosides A G T C U Percentage by mole 19 29 19 29 4 Which of the following events mostly involves hydrolysis reaction after the virus infects…arrow_forwardHow does a virus differ from a prokaryotic cell?arrow_forward
- Why is it inaccurate to refer to the “growth” of viruses?arrow_forwardAnswer the following regarding the varicella-zoster virus: a) the biology of the virus ( type: DNA/RNA type: single or double stranded) b) how it replicates c) life cycle of the virus (binding, fusion, reverse transcription, integration, replication, and assembly)arrow_forwardWhat is a latent animal virus?arrow_forward
- Why are virus genomes small?arrow_forwardWhat would happen to a virus that found its way to an environment filled only with cells that were outside of its host range? a) This virus would evolve until it was able to use the surrounding cells as hosts b) This virus would actively transport itself to another area in search of host cells C) This virus would replicate until it found cells that were within its host range d) Nothing; this virus would not be replicatedarrow_forwardWhich of the following are hosts of West Nile virus which are also responsible for infecting mosquitoes? a) birds b) humans c) horses d) rodentsarrow_forward
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What Is A Virus ? ; Author: Peekaboo Kidz;https://www.youtube.com/watch?v=YS7vsBgWszI;License: Standard YouTube License, CC-BY