Between April 1 and May 15 of one year, 22 children in

Most bacteria do not reproduce by budding; what method do they use?

Is this bacterium motile? How can you tell?

How does the sheath help the cell?

How do mbriae contribute to pathogenicity?

How does the nutritional diversity of these bacteria make them a problem in hospitals?

What disease does Vibrio cholerae cause?

The photo of the Proteus cell is probably a swarmer cell. How would you know?

Would this bacterium attack Staphylococcus aureus?

What is the feeding stage of this organism?

How do helical bacteria dier from spirochetes?

What physiological characteristic of Clostridium makes it a problem in contamination of deep wounds?

Why is Epulopiscium not in the same domain as Paramecium?

What structure is made by both Clostridium and Bacillus?

What is an environmental advantage of a pigment?

How does the arrangement of Streptococcus dier from Staphylococcus?

How can the cell structure of mycoplasmas account for their pleomorphism?

Why is Streptomyces not classied with fungi?

Why are these bacteria not classied as fungi?

How does the photosynthesis of the cyanobacteria dier from that of the purple sulfur bacteria?

Which stage of the life cycle is infectious to humans?

Can you see a resemblance between the double membrane around the nucleoid in this photo and the membrane around the nuclear envelope shown in Figure 4.24?

In what other place in the human body do you often nd Fusobacterium?

What does anoxygenic mean?

How does a spirochete's motility dier from that of Spirillum (see Figure 11.4)?

Do the terms included in the name, pyro and abyssi, suggest a basis for the naming of this bacterium?

Is a bacterium of this size theoretically possible if the interior were cytoplasm rather than a uid-lled vacuole?

Which of the following is an intracellular parasite?a. Rickettsiab. Mycobacteriumc. Bacillusd. Staphylococcuse. Streptococcus

Which of the following terms is the most specic?a. bacillusb. Bacillusc. gram-positived. endospore-forming rods and coccie. anaerobic

Which one of the following does not belong with the others?a. Enterococcusb. Lactobacillusc. Staphylococcusd. Streptococcuse. All are grouped together

Which of the following pairs is mismatched?a. anaerobic endospore-forming gram-positive rodsClostridiumb. facultatively anaerobic gram-negative rodsEscherichiac. facultatively anaerobic gram-negative rodsShigellad. pleomorphic gram-positive rodsCorynebacteriume. spirocheteHelicobacte

Spirillum is not classied as a spirochete because spirochetesa. do not cause disease.b. possess axial laments.c. possess _agella.d. are prokaryotes.e. none of the above

When Legionella was newly discovered, why was it classied with the pseudomonads?a. It is a pathogen.b. It is an aerobic gram-negative rod.c. It is dicult to culture.d. It is found in water.e. none of the above

Unlike purple and green phototrophic bacteria, cyanobacteriaa. produce oxygen during photosynthesis.b. do not require light.c. use H2S as an electron donor.d. have a membrane-enclosed nucleus.e. all of the above

A_er contact with a patients spinal _uid, a lab technician developed fever, nausea, and purple lesions on her neck and extremities. A throat culture grew gram-negative diplococci. What is the genus of the bacteria?

Between April 1 and May 15 of one year, 22 children in three states developed diarrhea, fever, and vomiting. e children had each received pet ducklings. Gram-negative, facultatively anaerobic bacteria were isolated from both the patients and the ducks feces; the bacteria were identied as serovar C2. What is the genus of these bacteria?

A woman complaining of lower abdominal pain with a temperature of 39C gave birth soon a_er to a stillborn baby. Blood cultures from the infant revealed gram-positive rods. e woman had a history of eating unheated hot dogs during her pregnancy. Which organism is most likely involved?