Chapter 27 Quiz

Last Updated By newton.sharon on 02/03/2012
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Although not present in all bacteria, this cell covering often enables cells that possess it to resist the defenses of host organisms, especially their phagocytic cells.

Answer:
a)  sex pilus
b)  cell wall
c)  capsule
d)  endospore
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  • newton sharon
    Answered in Chapter 27 Quiz
    Prokaryotes' essential genetic information is located in the
    a)plasmids
    b)nucleosome
    c)nucleoid
    d)exospore
    e)nucleolus
    c)nucleolus
  • newton sharon
    Answered in Chapter 27 Quiz
    In a hypothetical situation, the genes for sex pilus construction and for tetracycline resistance are located together on the same plasmid within a particular bacterium. If this bacterium readily performs conjugation involving a copy of this plasmid, then the result should be
    a)the temporary possession by this bacterium of a completely diploid genome.
    b)the subsequent loss of tetracycline resistance from this bacterium.
    c)he rapid spread of tetracycline resistance to other bacteria in that habitat.
    d)a bacterium that has undergone transduction.
    e)the production of endospores among the bacterium's progeny.
    c)the production of endospores among the bacterium's progeny.
  • newton sharon
    Answered in Chapter 27 Quiz
    Hershey and Chase performed an elegant experiment that convinced most biologists that DNA, rather than protein, was the genetic material. This experiment subjected bacteria to the same gene transfer mechanism as occurs in
    a)Transformation
    b)Transduction
    c)binary fussion
    d)conjugation
    e)endosymbiosis
    b)endosymbiosis
  • newton sharon
    Answered in Chapter 27 Quiz
    A hypothetical bacterium swims among human intestinal contents until it finds a suitable location on the intestinal lining. It adheres to the intestinal lining using a feature that also protects it from phagocytes, bacteriophages, and dehydration. Fecal matter from a human in whose intestine this bacterium lives can spread the bacterium, even after being mixed with water and boiled. The bacterium is not susceptible to the penicillin family of antibiotics. It contains no plasmids and relatively little peptidoglycan.


    Adherence to the intestinal lining by this bacterium is due to its possession of
    a)fimbriae
    b)pili
    c)a flagellum
    d)a capsule
    e)a cell wall with an outer lipolysaccharide
    d)a cell wall with an outer lipolysaccharide
  • newton sharon
    Answered in Chapter 27 Quiz
    Where can you find complete chromosome in bacterial cell?
    a)nucleiod
    b)endospore
    c)endospore and nucleiod
    d)nucleolus
    c)nucleolus
  • newton sharon
    Answered in Chapter 27 Quiz
    Jams, jellies, preserves, honey, and other foodstuffs with high sugar content hardly ever become contaminated by bacteria, even when the food containers are left open at room temperature. This is because bacteria that encounter such an environment.
    a)experience lysis
    b)undergo death as a result of water loss in the cell
    c)are obligate anerobes
    b)are obligate anerobes
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Chapter 27 Quiz
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Free Quiz Question From Chapter 27 Quiz
Question: Although not present in all bacteria, this cell covering often enables cells that possess it to resist the defenses of host organisms, especially their phagocytic cells.
Answer:
sex pilus
cell wall
capsule
endospore