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Introduction to Prokaryotes quiz #2 Flashcards

Introduction to Prokaryotes quiz #2
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  • Which organisms are prokaryotes? Archaea, fungi, protists, or plants?
    Archaea are prokaryotes.
  • Which organisms are prokaryotes?
    Prokaryotes include bacteria and archaea.
  • Which of the following organisms are prokaryotes? A) Archaea B) Fungi C) Protists D) Plants
    A) Archaea
  • In which kingdom do all organisms have cells that lack a cell wall? Fungi, plants, animals, or bacteria?
    Animals have cells that lack a cell wall.
  • Which domain(s) includes unicellular organisms?
    All domains (Bacteria, Archaea, and Eukarya) include unicellular organisms.
  • Which domains contain prokaryotes?
    The domains Bacteria and Archaea contain prokaryotes.
  • Which of the following can be found in bacteria?
    Bacteria have circular DNA, ribosomes, and a cell membrane.
  • Which of the following is not true of biofilms?
    Biofilms are not composed of multicellular organisms; they are communities of microorganisms.
  • In prokaryotes, what is the shape of their DNA?
    Prokaryotic DNA is circular.
  • Identify the two main domains that contain prokaryotes.
    The two main domains that contain prokaryotes are Bacteria and Archaea.
  • Prokaryotes are classified as belonging to two different domains. What are the domains?
    Prokaryotes belong to the domains Bacteria and Archaea.
  • Which organisms are prokaryotes? Archaea, fungi, protists, or plants?
    Archaea are prokaryotes.
  • Which of the three domains contain(s) prokaryotic organisms?
    The domains Bacteria and Archaea contain prokaryotic organisms.
  • In what ways are archaea similar to bacteria?
    Archaea and bacteria both lack a nucleus and membrane-bound organelles, and have circular DNA.
  • How are archaea most similar to bacteria?
    Archaea are similar to bacteria in that both are prokaryotic and lack a nucleus.
  • Which of the following are examples of biofilms?
    Biofilms are communities of microorganisms that adhere to surfaces, such as dental plaque.
  • All members of the domain Bacteria have which of the following characteristics?
    All bacteria lack a nucleus and have circular DNA.
  • Which prokaryotes are multicellular?
    Prokaryotes are generally unicellular; there are no multicellular prokaryotes.
  • Which of the following terms refers to a prokaryotic cell that is comma-shaped?
    Vibrio refers to a comma-shaped prokaryotic cell.
  • Which of the following types of microbes does not appear on the tree of life?
    Viruses do not appear on the tree of life as they are not considered living organisms.
  • Which domains of life are classified as prokaryotes?
    The domains Bacteria and Archaea are classified as prokaryotes.
  • How do spirochetes and spirilla differ?
    Spirochetes are flexible spiral-shaped bacteria, while spirilla are rigid spiral-shaped bacteria.
  • What are the only prokaryotes?
    The only prokaryotes are bacteria and archaea.
  • Which of the following characterizes the domain Bacteria?
    The domain Bacteria is characterized by organisms that lack a nucleus and have peptidoglycan in their cell walls.
  • Which of the following is the best definition of generation time in a bacterium?
    Generation time is the time it takes for a bacterial population to double.
  • Which of the following are prokaryotes?
    Bacteria and archaea are prokaryotes.
  • Which of the following statements about cyanobacteria is true?
    Cyanobacteria are photosynthetic bacteria that produce oxygen.
  • What is one way that organisms in the domain Bacteria differ from organisms in the domain Archaea?
    Bacteria have peptidoglycan in their cell walls, while archaea do not.
  • What is the function of a bacterial endospore?
    A bacterial endospore allows the bacterium to survive harsh conditions.
  • Which of the following is a prokaryotic domain?
    Bacteria and Archaea are prokaryotic domains.
  • Which of the following domains could a prokaryotic single-celled organism be classified into?
    A prokaryotic single-celled organism could be classified into the domains Bacteria or Archaea.
  • Which of the following is an example of a unicellular organism?
    Bacteria are examples of unicellular organisms.
  • Which type of organism would not be included in the domain Eukarya?
    Prokaryotic organisms, such as bacteria and archaea, are not included in the domain Eukarya.
  • Which are prokaryotic organisms that belong to domain Bacteria?
    E. coli and Streptococcus are examples of prokaryotic organisms in the domain Bacteria.
  • The term microbiota refers to which of the following?
    Microbiota refers to the community of microorganisms living in a particular environment, such as the human gut.
  • Which group of prokaryotes live in extreme environments and are sometimes called extremophiles?
    Archaea are prokaryotes that live in extreme environments and are called extremophiles.
  • Which of the following domains of life contain prokaryotes?
    The domains Bacteria and Archaea contain prokaryotes.
  • Which statement about the genomes of prokaryotes is correct?
    Prokaryotic genomes are typically circular and found in the nucleoid region.
  • Which of the following are true about prokaryotes?
    Prokaryotes lack a nucleus and membrane-bound organelles.
  • Which of the domains of life are all unicellular and prokaryotic?
    The domains Bacteria and Archaea are all unicellular and prokaryotic.