Chapter Questions
A catalase-negative colony growing on a plate that was incubated aerobically could be which of these genera?a) Bacillusb) Escherichiac) Micrococcusd) Staphylococcuse) Streptococcus
All of the following genera are spirochetes excepta) Borrelia.b) Caulobacter.d) Leptospira.2. I an and the streate the and 8 and the 1 .d) Spirochaeta.e) Treponema.
If you examined the acidic runoff from a coal mine, which of the following would you most likely find growing there?a) Clostridiumb) Escherichiac) Lactic acid bacteriad) Thermuse) Acidithiobacillus
The dormant forms of which of the following genera are the most resistant to environmental extremes?1. Azotobacter2. Bacillus3. Clostridium4. Myxobacteria5. Streptomycesa) 1,2b) 2,3c) 3,4d) 4,5e) 1,5
If you read that coliforms had been found in a lake, the report could have been referring to which of the following genera?a) Bacteroidesb) Bifidobacteriumc) Clostridiumd) Escherichiae) Streptococcus
Which of the following genera preys on other bacteria?a) Bdellovibriob) Caulobacterc) Hyphomicrobiumd) Photobacteriame) Sphaerotilus
All of the following genera are obligate intracellular parasitesexcepta) Chlamydia.b) Coxiella.c) Ehrlichia.d) Mycoplasma.e) Rickettsia.
Which of the following archaea would most likely be found coexisting with bacteria?a) Nanoarchaeumb) Halobacteriumc) Methanococcusd) Picrophiluse) Sulfolobus
Thermoplasma and Picrophilus grow best in which of the following extreme conditions?a) Low pHb) High saltc) High temperatured) a and $c$e) b and $c$
Thermoplasma and Picrophilus grow best in which of the following extreme conditions?a) Low pHb) High saltc) High temperatured) a and ce) $b$ and $c$