Biology 122---FINAL (chapters 28-34)

Last Updated By stellersax on 12/10/2010
2186 people took this quiz
  • Share
http%3A%2F%2Fwww.funnelbrain.com%2Fqc-20502-what-organisms-are-most-strongnumerous-strong-abundant-on-earth.html

What is the main structural difference between enveloped and nonenveloped viruses?

Answer:
a)  Enveloped viruses have their genetic material enclosed by a protein or phospholipid coat.
b)  Nonenveloped viruses have only a phospholipid membrane, while enveloped viruses have two membranes, the other one being a protein capsid.
c)  Enveloped viruses have a phospholipid membrane outside their capsid, whereas nonenveloped viruses do not.
d)  Both viruses have a capsid and phospholipid membrane; but in the nonenveloped virus the genetic material is between these two membranes, while in the enveloped virus the genetic material is inside both membranes.
View as Flashcard Quiz
Related Quiz Content
  • stellersax

    Which of the following viruses would be the most likely to have reverse transcriptase?


    a)an RNA-based lytic virus
    b)an RNA-based lysogenic virus
    c)a DNA-based lytic virus
    d)a DNA-based lysogenic virus
    b)a DNA-based lysogenic virus
  • stellersax

    Some human viruses require a type of replication that human cells do not normally do. For example, humans normally do not have the ability to convert RNA into DNA. How can these types of viruses infect humans, when human cells cannot perform a particular role that the virus requires?


    a)The virus causes mutations in the human cells, resulting in the formation of new enzymes that are capable of performing these roles.
    b)The virus has in its own genome the code for any specialized enzymes that the host does not have.
    c)The virus infects only those cells and species that can perform all the replication roles necessary.
    d)Viruses can stay in a quiescent state until the host cell evolves this ability.
    b)Viruses can stay in a quiescent state until the host cell evolves this ability.
  • stellersax

    HIV is inactivated in the laboratory after a few minutes of sitting at room temperature; the flu virus is still active after sitting for several hours. What are the practical consequences of these findings?


    a)HIV can be transmitted from person to person by sexual contact or injection of infected blood products.
    b)The flu virus can be transmitted from person to person by contact with a contaminated surface.
    c)The flu virus can be transmitted from person to person by direct physical contact.
    d)HIV can be transmitted from person to person by sexual contact or injection of infected blood products; the flu virus can be transmitted from person to person by contact with a contaminated surface.
    e)HIV can be transmitted from person to person by sexual contact or injection of infected blood products; the flu virus can be transmitted from person to person by contact with a contaminated surface as well as by direct physical contact.
    e)HIV can be transmitted from person to person by sexual contact or injection of infected blood products; the flu virus can be transmitted from person to person by contact with a contaminated surface as well as by direct physical contact.
Discussion Board
Biology 122   FINAL  chapters 28 34
Biology 122---FINAL (chapters 28-34)
Quiz Taken:2186 people took this quiz
Rate this Quiz
Teams
Quiz does not belong to any team.
Quiz Tags
Free Quiz Question From Biology 122---FINAL (chapters 28-34)
Question: What is the main structural difference between enveloped and nonenveloped viruses?
Answer:
Enveloped viruses have their genetic material enclosed by a protein or phospholipid coat.
Nonenveloped viruses have only a phospholipid membrane, while enveloped viruses have two membranes, the other one being a protein capsid.
Enveloped viruses have a phospholipid membrane outside their capsid, whereas nonenveloped viruses do not.
Both viruses have a capsid and phospholipid membrane; but in the nonenveloped virus the genetic material is between these two membranes, while in the enveloped virus the genetic material is inside both membranes.