Characteristics of Prokaryotic Organisms
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Questions and Answers

Which of the following statements about endospores is true?

  • Each endospore germinates to form multiple vegetative cells
  • They are produced by Gram-negative bacteria
  • They are a concern for food processors and healthcare professionals (correct)
  • They are a defensive strategy against favorable conditions

What is the unique method of reproduction exhibited by Epulopiscium and its relatives?

  • Budding
  • Reproductive spores
  • Viviparity (correct)
  • Binary fission

Which of the following factors determines the arrangements of prokaryotic cells?

  • The planes in which cells divide during binary fission
  • Both the planes in which cells divide and the separation of daughter cells during binary fission (correct)
  • The method of asexual reproduction
  • The separation of daughter cells during binary fission

What is the primary classification scheme used for prokaryotes?

<p>Both Bergey's Manual of Systematic Bacteriology and the three-domain system (A)</p> Signup and view all the answers

Which of the following statements about archaea is false?

<p>They are known to cause diseases (B)</p> Signup and view all the answers

What are extremophiles?

<p>Prokaryotes that require extreme conditions like high temperature or salinity to survive (C)</p> Signup and view all the answers

Which of the following statements about thermophiles is true?

<p>Their enzymes are used in research and industrial applications (C)</p> Signup and view all the answers

What is the primary characteristic of halophiles?

<p>They inhabit extremely saline habitats and depend on high salt concentrations (D)</p> Signup and view all the answers

What is the primary role of methanogens in the environment?

<p>All of the above (D)</p> Signup and view all the answers

Which of the following groups of bacteria are considered to represent the earliest branches of bacteria?

<p>Aquifex and Deinococcus (A)</p> Signup and view all the answers

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