Exam 17: Bacteria: the Proteobacteria

Which bacillus- shaped genus are primarily intracellular parasites of arthropods such as crustaceans and insects?

Cysts, although similar to bacterial endospores in being resting structures, can rapidly oxidize ________substrates when exposed to them and are less resistant to________ than endospores.

Which genus oxidizes both ferrous iron (Fe²⁺) and Mn²⁺ but obtains energy only from the former?

The primary mode of transmission for a rickettsial disease is person- to- person contact.

All methylotrophs are also methanotrophs.

Explain the process of quorum sensing as it relates to regulation of bacterial bioluminescence in Vibrio fischeri.

The cyanobacteria are oxygenic phototrophic bacteria with evolutionary roots near those of the

The genus________ forms pigments called prodigiosins that are produced only during the________of growth and are________ metabolites.

Sulfur lithotrophs can grow either chemolithotrophically or chemoorganotrophically.

Methane oxidizers and ammonia oxidizers exhibit great similarity in the structure of their internal membrane systems and are phylogenetically closely related.

Which of the following groups are NOT able to carry out anoxygenic photosynthesis?

Sterols are thought to be unique to autotrophic prokaryotes.

Currently, well over________ phyla of Bacteria have been identified from________ sequencing.

________is the term used to identify salt- loving bacteria.

The________ bacteria are commonly found in alcoholic juices such as hard cider, wine, or beer.

An identifying trait of the cell division cycle of Caulobacter is the absence of a motile stage.

Compare and contrast type I and type II methanotrophs.

Explain the symbiotic relationship between the methanotrophic bacteria and certain marine mussels and sponges.

Pseudomonas pathogens affect only members of the animal kingdom.

Explain how the oxidation of iron pyrite by Acidithiobacillus ferrooxidans in mining operations can have both beneficial and negative outcomes.