Biology: Concepts and Investigations
5th Edition
ISBN: 9781260259049
Author: Hoefnagels
Publisher: MCG
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Chapter 16, Problem 7MCQ
Summary Introduction
Introduction:
A disease that is caused due to infection of virus is known as viral infection. A person can acquire the infection by inspiring the respiratory droplets of infected person or by consuming contaminated water or food.
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Which of the following statements about viruses is false? a. Viruses require a host cell to reproduce. b. Viruses are sensitive to interferons. c. Viral infections can generally be controlled with antibiotics. d. Viruses encode their own genome.
Why are vaccines and/or passive immunization the method of choice in the
treatment or prevention of viral infections?
A. There are no known inhibitors to reverse transcription
B. Viruses are non-living and do not have their own genetic mechanisms to reproduce
by themselves hence host cells must rely on targeting the virus or their products.
C. Antibodies prevent replication of viral genome
D. Antibodies prevent transcription and translation of viral genomes
E. All of these
During viral infection, attachment is usually specific to a particular celltype becausea. the virus is attracted to the appropriate host cells by proteinssecreted into the extracellular fluid.b. the virus recognizes and binds to specific molecules in thecytoplasm of the host cell.c. the virus recognizes and binds to specific molecules on the surfaceof the host cell.d. the host cell produces channel proteins that provide passageways forviruses to enter the cytoplasm.e. the virus releases specific proteins that make holes in the membranelarge enough for the virus to enter.
Chapter 16 Solutions
Biology: Concepts and Investigations
Ch. 16.1 - How are viruses similar to and different from...Ch. 16.1 - What determines a viruss host range?Ch. 16.1 - How do viruses evolve?Ch. 16.2 - Describe the five steps in viral replication.Ch. 16.2 - Prob. 2MCCh. 16.3 - Prob. 1MCCh. 16.3 - How is a lysogenic infection similar to and...Ch. 16.4 - Prob. 1MCCh. 16.4 - Prob. 2MCCh. 16.4 - Prob. 3MC
Ch. 16.4 - Prob. 4MCCh. 16.5 - Prob. 1MCCh. 16.5 - Prob. 2MCCh. 16.6 - How are viroids and prions different from viruses?Ch. 16.6 - How do viroids and prions cause disease?Ch. 16.6 - Prob. 3MCCh. 16.7 - How did researchers gather data about SIV...Ch. 16.7 - Prob. 2MCCh. 16 - Which of the following is NOT a feature associated...Ch. 16 - Prob. 2MCQCh. 16 - Prob. 3MCQCh. 16 - Although some viruses are complete after the...Ch. 16 - Prob. 5MCQCh. 16 - Which enzyme copies HTVs genetic material, forming...Ch. 16 - Prob. 7MCQCh. 16 - What is a prion? a. A highly wound circle of RNA...Ch. 16 - Prob. 1WIOCh. 16 - Your biology lab instructor gives you a petridish...Ch. 16 - Why is it inaccurate to refer to the "growth" of...Ch. 16 - Prob. 4WIOCh. 16 - Rhinoviruses replicate in the mucus-producing...Ch. 16 - Prob. 6WIOCh. 16 - Prob. 7WIOCh. 16 - Prob. 8WIOCh. 16 - Why do antibiotics kill bacteria but leave viruses...Ch. 16 - Prob. 10WIOCh. 16 - Prob. 11WIOCh. 16 - How is a biological virus similar to and different...Ch. 16 - Prob. 1PITCh. 16 - How is a virus similar to and different from a...Ch. 16 - Prob. 3PIT
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- prophage is a stage in the development of a/ana. bacterial virus. b. poxvirus.c. lytic virusd. enveloped virusarrow_forwardVirus spikes are commonly associated with which of the following? a. Non enveloped viruses b. Glycoproteins c. Lipids from the host cell membrane d. Inability to cause hemaglutinationarrow_forwardWhich of the following is NOT used to treat active viral disease? a. Vaccines b. Antiviral drugs c. Antibiotics d. Phage therapyarrow_forward
- Vaccines are given to provide protection against pathogen causing infections. Which of the following statements best describes how vaccines work? a Fever and swelling develop which is the first response in killing a pathogen b. Antibodies in the vaccine provide the body with nonspecific immunity to an antigen. c. An inactivated or killed virus stimulates the body to develop specific immunity to that type of virus. d. Heathy bacteria causes the body to release toxins which will protect the body if later exposed to different type of bacteria.arrow_forwardClear patches in cell cultures that indicate sites of virus infection are called a. plaques. b. pocks.c. colonies d. prions.arrow_forwardTo infect their specific host cells, viruses go through these chronological steps EXCEPT a. Release of progeny viruses b. Absorption and penetration of the viral particles c. Uncoating of the nucleic acid of the viral particles d. Synthesis and assembly of viral particle componentsarrow_forward
- Which part of the SARS-CoV2 virus is produced by your immune system in response to the Pfizer or Moderna vaccine? a. Viral RNA b. Viral DNA c. Spike Protein d. Envelope Protein e. Membrane Proteinarrow_forwardWhat is the significance of negative strand synthesis of positive a ssRNA virus? a. Loss of Function b. Transcription of negative and positive strands c. Ensures that mutations are less likely to occur to the genetic material d. Acts as complementary template for the positive strandarrow_forwardIn general, RNA viruses multiply in the cell , and DNAviruses multiply in the cell .a. nucleus, cytoplasm b. cytoplasm, nucleus c. vesicles, ribosomes d. endoplasmic reticulum, nucleolusarrow_forward
- Define the following terms: a. virus b. virion c. capsid d. retrovirus e. enveloped virusarrow_forward80) The integrase enzyme a. Only works in the cytoplasm b. Can produce the provirus. c. Can be synthesized in the cytoplasm and nucleus d. is packaged in the Hepatitis B virusarrow_forwardThe following statements are correct, except? a. Non-enveloped viruses bind to their host cells via their capsid surface. b. The cell receptor may determine the host range and tissue tropism of viruses. c. Virus particles bind to receptors on their host cells to initiate entry. d. Naked virus particles bind via their transmembrane glycoproteins.arrow_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