Chapter 11 MULTIPLE CHOICE Choose the one alternative that best completes the statement or answers the question 1 Which one of the following bacteria does NOT belong with the others A Bordetella B Campylobacter C Salmonella D Burkholderia E Pseudomonas Answer C 2 Which of the following is the best reason to classify Streptococcus in the Lactobacillales A Gram reaction B morphology C rRNA sequences D found in dairy products E fermentation of lactose Answer C 3 All of the following bacteria are motile Which does NOT have flagella A helical bacteria B Salmonella C Pseudomonas D Escherichia E spirochetes Answer E 4 Escherichia coli belongs to the A gram positive bacteria B green sulfur bacteria C actinomycetes D spirochetes E proteobacteria Answer E 5 Rickettsias differ from chlamydias in that rickettsias A require an arthropod for transmission B are gram negative C are intracellular parasites D are enterics E form elementary bodies Answer A 1 6 Which of the following lacks a cell wall A Mycobacterium B Nocardia C Borrelia D Mycoplasma E Clostridium Answer D 7 Staphylococcus and Streptococcus can be easily differentiated in a laboratory by which one of the following A growth in high salt concentrations B ability to cause disease C cell shape D Gram stain reaction E glucose fermentation Answer A 8 Which of the following is NOT a characteristic of spirochetes A easily observed with brightfield microscopy B gram negative C found in the human oral cavity D possess an axial filament E helical shape Answer A 9 Both Beggiatoa and the purple sulfur bacteria use H2S These bacteria differ in that Beggiatoa A belongs to the gammaproteobacteria B uses light energy C uses H2S for a carbon source D uses H2S for an energy source E is a heterotroph Answer D 10 Which of the following bacteria does NOT belong with the others A Staphylococcus B Halococcus C Methanobacterium D Sulfolobus E Halobacterium Answer A 11 Which of the following is NOT a characteristic of Neisseria A gram negative B requires X and V factors C oxidase positive D cocci E Some species are human pathogens Answer B 2 12 You have isolated an aerobic gram positive endospore forming bacterium that grows well on nutrient agar To which of the following groups does it most likely belong A gammaproteobacteria B bacillales C phototrophic bacteria D deltaproteobacteria E The answer cannot be determined based on the information provided Answer B 13 You have isolated a gram positive rod What should you do next A lactose fermentation B endospore stain C Gram stain D enterotube E flagella stain Answer B 14 Actinomycetes differ from fungi in that actinomycetes A cause disease B are decomposers C require light D lack a membrane bounded nucleus E are chemoheterotrophs Answer D 15 Mycoplasmas differ from other bacteria in that they A grow inside host cells B lack a cell wall C are motile D are gram negative E are acid fast Answer B 16 Requirements for X and V factors are used to identify A Pseudomonas B Haemophilus C Escherichia D Staphylococcus E Neisseria Answer B 17 Which of the following are found primarily in the intestines of humans A facultatively anaerobic gram negative rods B gram positive cocci C aerobic helical bacteria D gram negative aerobic rods and cocci E endospore forming rods Answer A 3 18 Thiobacillus oxidizes inorganic sulfur compounds and reduces CO2 This bacterium is a A photoheterotroph B gammaproteobacteria C photoautotroph D chemoheterotroph E chemoautotroph Answer E 19 Which of the following is NOT an enteric A Enterobacter B Escherichia C Salmonella D Campylobacter E Shigella Answer D 20 Which of the following pairs is mismatched A chemoautotrophic bacteria fix atmospheric nitrogen B Cytophaga a gliding nonfruiting bacterium C actinomycetes reproduce by fragmentation D dissimilatory sulfate reducing bacteria produce H2S E archaea extremophiles Answer A 21 You have isolated a prokaryotic cell The first step in identification is a n A DNA fingerprint B endospore stain C flagella stain D Gram stain E lactose fermentation test Answer D 4 Figure 11 1 22 What is group c in the key shown in Figure 11 1 A chlamydiae B spirochaetes C planctomycetes D bacteroidetes E fusobacteria Answer B 23 Which of the following pairs is NOT correctly matched A myxospore gliding bacteria B endospore Bacillus C elementary body Escherichia D endospore Clostridium E heterocyst cyanobacteria Answer C 24 Which of the following statements about the causative agent of Rocky Mountain spotted fever is FALSE A It is an intracellular parasite B It is found in soil and water C It is transmitted by ticks D It is in the genus Rickettsia E It is gram negative Answer B 25 Borrelia is classified as a spirochete because it A is a rod B possesses an axial filament C is a pathogen D is aerobic E is transmitted by ticks Answer B 5 26 The nonsulfur photosynthetic bacteria use organic compounds as A energy sources B oxygen sources C electron donors to reduce CO2 D electron acceptors E carbon sources Answer C 27 The crab industry needs female crabs for growing more crabs What bacterium might be used to ensure development of female crabs and shrimp A Pelagibacter B Wolbachia C Gemmata D Neisseria E Acinetobacter Answer B 28 All of the following bacteria are gram positive Which does NOT belong with the others A Listeria B Corynebacterium C Mycobacterium D Bacillus E Actinomyces Answer A 29 Which of the following genera is an anaerobic gram negative rod A Treponema B Bacteroides C Staphylococcus D Escherichia E Neisseria Answer B 30 Which of the following pairs is mismatched A mycobacteria acid fast B spirochete axial filament C enterics gram negative D Pseudomonas gram positive E aerobic helical bacteria gram negative Answer D 31 Streptomyces differs from Actinomyces because Streptomyces A is a strict aerobe B forms filaments C is a bacterium D makes antibiotics E produces conidia Answer A 6 32 Which of the following bacteria is gram negative A Mycobacterium B Staphylococcus C Corynebacterium D Bacillus E Treponema Answer E 33 Which of the following form conidiospores A actinomycetes and related organisms B spiral and curved bacteria C anaerobic gram negative cocci D rickettsias E endospore forming gram positive rods and cocci Answer A 34 Caulobacter are different from most bacteria in that they A are gram positive B are gram negative C are motile D lack cell walls E have stalks Answer E 35 Which of the following bacteria are responsible for more infections and more