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ATI RN · Microbiology · microbiology chapter 1 test bank

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Showing all 5 practice questions with expert explanatory rationales.

Question 1 of 5

A patient with foul-smelling diarrhea had a stool sample showing large ciliated protozoa with a kidney-shaped macronucleus. What is the diagnosis?

A. Balantidiasis

B. Giardiasis

C. Amoebiasis

D. Trichomoniasis

Expert Explanatory Rationale

Correct Answer: Balantidiasis

Question 2 of 5

Permeases are specific carriers involved in

A. facilitated diffusion

B. passive transport system

C. simple diffusion

D. active transport system

Expert Explanatory Rationale

Correct Answer: active transport system

Question 3 of 5

Microscopical examination of discharges from the gums of a patient ill with paradontosis revealed some protozoan pear-shaped organisms 6-13 micrometer long. The parasite has one nucleus and undulating membrane, there are four flagella at the front of its body. What protozoan were found?

A. Trichomonads

B. Leishmania

C. Amoebae

D. Balantidia

Expert Explanatory Rationale

Correct Answer: Trichomonads

Question 4 of 5

Peritrichous bacteria:

A. have single flagellum at one pole

B. have flagella all over the surface

C. have single flagellum at each pole

D. have 2 or more flagella at one or both poles

Expert Explanatory Rationale

Correct Answer: have flagella all over the surface

Question 5 of 5

A bioterrorist has mailed an envelope with a powder that is suspected to contain anthrax causative agent. This envelope can remain dangerous for a long time, because anthrax causative agent:

A. Forms a protein capsule

B. Forms a polysaccharide capsule

C. Is a spore-former

D. Forms flagella

Expert Explanatory Rationale

Correct Answer: Is a spore-former

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