Chapter 11 Microbiology LS

Coxiella burnetii is an oblicate intracellular bacterium that

Causes Q fever Can form small cell variants (SCVs) that survive well in the environment

____________ species are Gram-negative, strictly anaerobic, make up about a third of the bacteria in fecal matter in humans, and are associated with abscesses and bloodstream infections.

Bacteroides

Presence of the enzyme ________ is a key characteristic of Staphylococcus species that is used to distinguish them from Gram-positive cocci that do not respire aerobically, such as Streptococcus species

Catalase

Chemoorganotrophs that perform _____________________ often use sulfur or sulfate as a terminal electron acceptor

Anaerobic respiration

Members typically inhibit the intestinal tract

Enterococcus

Wolbachia pipientis is significant medically in diseases such as river blindness and elephantiasis because

It resides within the filarial worms that cause these diseases The immune response to this bacteria contributes to chronic inflammation in these diseases

Common members of the microbiota in the mouth and vagina during childbearing years

Lactobacillus

Includes species used to make cheese

Lactococcus

Bifidobacterium species are ____________

Part of the intestinal tract Gram-positive, irregular rod-shaped anaerobes

Which diseases are caused by member of the Chlamydia and Chlamydophila species?

Psittacosis, a form of pneumonia Eye infections An STI that mimics gonorrhea Atypical pneumonia

Obligate aerobes obtain energy using ___________ exclusively

Respiration

Staphylococcus epidermidis is a part of the normal microbiota of the

Skin