Chapter 11 Flashcards
Which organism is NOT correctly matched to its motility? Proteus; flagella Myxococcus; gliding motility spirochetes; axial filaments motile cyanobacteria; gliding motility Spirillum; axial filaments
Spirillum; axial filaments
Some actinomycetes are similar to filamentous fungi because they \_\_\_\_\_\_\_\_\_\_. have a similar filament diameter live in a freshwater environment have a prokaryotic cell structure produce asexual reproductive spores have chitin in their cell walls
produce asexual reproductive spores
Which answer is NOT true of bacterial photosynthesis and/or photosynthetic bacteria?
Cyanobacteria deposit sulfur derived from the splitting of hydrogen sulfide outside of the cells.
Cyanobacteria carry out the photosynthetic process similar to the way plants and algae do.
Some photosynthetic bacteria are anaerobes.
Some photosynthetic bacteria are also capable of chemoheterotrophic growth.
Green nonsulfur bacteria use organic compounds as the source of electrons for reduction of carbon dioxide.
Cyanobacteria deposit sulfur derived from the splitting of hydrogen sulfide outside of the cells.
A new microorganism has been discovered that resides in the mouths of dogs. This microorganism lacks a nucleus, has a cell wall consisting of peptidoglycan and an outer membrane of lipopolysaccharide, is shaped like a corkscrew, and is motile by means of an axial filament. This organism is most likely related to \_\_\_\_\_\_\_\_\_\_. spirochaetes pseudomonadales Acidithiobacillus alphaproteobacteria actinobacteria
spirochaetes
Which member of the gammaproteobacteria is a potential cause of pneumonia and can be found in warm-water supply lines and air conditioning cooling towers? Coxiella Salmonella Legionella mycoplasma Klebsiella
Legionella
Which of the following bacteria are INCORRECTLY matched with gram reaction and morphology? Neisseria; gram-positive coccus Bacillus; gram-positive rod Streptococcus; gram-positive coccus Staphylococcus; gram-positive coccus Shigella; gram-negative rod
Neisseria; gram-positive coccus
Which of the following bacteria does NOT fix nitrogen? some cyanobacteria Rhizobium Nitrobacter Azotobacter Azospirillum
Nitrobacter
Which is NOT true of the rickettsias?
They are obligate intracellular parasites.
They are classified as alpha-proteobacteria.
They are typically transmitted by insects and ticks.
They reproduce by fragmentation.
They can cause human diseases often characterized by a rash.
They reproduce by fragmentation.
A bacterium isolated from the soil has the following characteristics: it is a gram-negative straight rod, it is aerobic and motile, it produces water-soluble pigment, and it readily grows on several common laboratory media. Ribosomal RNA analysis places this bacterium with the gammaproteobacteria. This organism is most likely in the genus \_\_\_\_\_\_\_\_\_\_. Pseudomonas Haemophilus Vibrio Legionella Bacillus
Pseudomonas
Which of the following statements is NOT true of the genus Mycoplasma ?
They are highly pleomorphic.
They are obligate intracellular pathogens.
They are unusually small bacteria.
They are genetically related to gram-positive bacteria.
They may produce filaments that resemble fungi
They are obligate intracellular pathogens.
Which of these bacteria is NOT associated with foodborne illness? Campylobacter Erwinia Staphylococcus aureus Salmonella Shigella
Erwinia
Enteric bacteria would most likely be found in which environment? human skin aquatic environments intestinal tract of an animal warm, tropical soil unpasteurized milk and apple juice
intestinal tract of an animal
Which of these bacteria is NOT in the phylum Actinobacteria? Actinomyces Streptomyces Neisseria Corynebacterium Mycobacterium
Neisseria
Which of the following statements is true of members of the order Lactobacillales? They do not perform aerobic or anaerobic respiration. They are all rod-shaped. They are all gram-negative. They can grow only in dark environments. They are obligate anaerobes.
They do not perform aerobic or anaerobic respiration.
Which of the following is an example of a helical bacterium that does NOT make a complete twist? Helicobacter Serratia Yersinia Treponema Klebsiella
Helicobacter
