front 1 Pleomorphic bacteria | back 1 vary in size and shape |
front 2 Which of the following bacterial arrangements is the result of snapping division? | back 2 palisades |
front 3 The arrangement represented in the figure is typical of which of the following genera of bacteria? | back 3 Corynebacterium |
front 4 What bacterial structure is responsible for separating the daughter DNA molecules after replication? | back 4 cytoplasmic membrane |
front 5 Endospores | back 5 may be produced when nutrients are scarce. |
front 6 Bergey's Manual of Systematic Bacteriology contains | back 6 classification schemes for prokaryotes |
front 7 Which of the following characteristics distinguish the archaea from the bacteria? | back 7 cell wall composition, cytoplasmic membrane lipids, and 16S rRNA sequences |
front 8 The archaea known as halophiles | back 8 are members of the Euryarchaeota and require salt concentrations above 9% |
front 9 Low G + C content Gram-positive bacteria are | back 9 in the phylum Firmicutes and include Clostridia and Mycoplasma |
front 10 Which of the following diseases is NOT associated with bacteria that form endospores? | back 10 toxic shock syndrome |
front 11 Mycoplasmas are pleomorphic because they | back 11 have no cell walls |
front 12 Which of the following bacterial genera produce endospores? | back 12 both Bacillus and Clostridium |
front 13 Which of the following bacterial genera includes species that protect areas of the body such as the intestinal tract and the vagina from invasion by pathogens? | back 13 Lactobacillus |
front 14 Which of the following groups of bacteria is named for its resemblance to fungi? | back 14 actinomyces |
front 15 Which of the following bacterial genera is used for the degradation of environmental pollutants? | back 15 Nocardia |
front 16 Which of the following is NOT associated with bacteria in the genus Streptomyces? | back 16 protection of plants against caterpillars |
front 17 What feature of mycobacteria is responsible for the unusually slow growth of these bacteria? | back 17 The mycolic acid in their cell walls requires signification metabolic investment. |
front 18 A large number of Gram-negative human pathogens are members of the | back 18 gammaproteobacteria |
front 19 Members of which of the following genera are the most common sexually transmitted bacteria in the United States? | back 19 Chlamydia |
front 20 A microbiologist observes what appears to be a pink-staining long rod within the periplasmic space of a Gram-negative bacillus. What is the structure likely to be? | back 20 Bdellovibrio |
front 21 Which of the following statements regarding pseudomonads is FALSE? | back 21 They are symbiotic with plants for nitrogen fixation. |
front 22 A flexible, spiral shaped bacterium is called a | back 22 spirochete |
front 23 Which of the following statements regarding mycoplasmas is FALSE? | back 23 They stain Gram-positive |
front 24 The anaerobic Clostridium species are troublesome pathogens largely because of their capacity for | back 24 endospore production |
front 25 Gram negative facultative anaerobes that metabolize carbohydrates via glycolysis are members of the | back 25 gammaproteobacteria |
front 26 A Gram-positive psychorotrophic rod _____ is a frequent contaminant of milk and meat and an opportunistic pathogen of the immunocompromised. | back 26 Listeria monocytogenes |
front 27 A species of the genus Streptococcus is the leading cause of | back 27 "flesh-eating" bacterial infections. |
front 28 The genus Mycobacterium includes species responsible for | back 28 tuberculosis |
front 29 Members of the genus Chlamydia are | back 29 intracellular parasites |
front 30 Pseudomona species are occasional causes of | back 30 urinary tract infections |
front 31 The process by which a bacterial cell produces an endospore is called (endosporing/ sporulation/ vegetation). | back 31 sporulation |
front 32 The most common form of reproduction among prokaryotes is (snapping/ budding/ binary) | back 32 binary |
front 33 The rod-shaped (rickettsias/ chlamydias/ brucella) are intracellular parasitic members of the alphaproteobacteria. | back 33 rickettsias |
front 34 Some members of the alphaproteobacteria produce a structure called a (prosthecae/ pilus/ filament) to produce extra surface area for nutrient absorption. | back 34 prosthecae |
front 35 This bacterial shape is called (bacillus/ vibrio/ rod). | back 35 vibrio |
front 36 The G + C content is an (RNA/ structural/ genetic) determination used in classifying the different taxa of Gram positive bacteria. | back 36 genetic |
front 37 The (streptobacilli/ actinomycetes/ mycoplasmas) are a group of Gram-positive bacteria that form branching filaments resembling those of fungi. | back 37 actinomycetes |
front 38 The Genus of pathogenic cocci responsible for a wide range of human disease and whose members grow in chains is (Staphylococcus/ Streptococcus/ Enterococcus). | back 38 Streptococcus |
front 39 The members of the (alphaproteobacteria/ gammaproteobacteria/ actinomycetes) may alternate between a flagellated motile stage and a nonmotile stage attached by means of a prosthecae. | back 39 alphaproteobacteria |
front 40 The reduction of nitrogen gas to ammonia is called nitrogen (fixation/ cycling). | back 40 fixation |
front 41 Slow growing bacteria in the genus (Mycoplasma/ Mycobacterium) are able to withstand long exposure to air because of the presence of mycelic acid in their cell wall structure. | back 41 Mycobacterium |
front 42 Plant tumors caused by Agrobacterium infections are called (galls/ heterocyst). | back 42 galls |
front 43 The (bacilli/ Lactobacilli/ bacteroids) are a group of Gram-negative bacteria that include obligate anaerobes normally found in the intestinal tract of animals and humans. | back 43 bacteroids |
front 44 The infective stage of chlamydia is called the (elementary/ initial) body. | back 44 elementary |
front 45 Burkholderia is a common (true/ opportunistic) pathogen of patients with cystic fibrosis. | back 45 opportunistic |