You discover an encapsulated Gram-positive, peritrichous, spore-forming bacillus. Which of the following describes the organism?
A) Spherical bacterium with a thin cell wall, a slime layer, and flagella distributed over its surface, that can form endospores for survival of adverse conditions.
B) Rod-shaped bacterium with a thick cell wall, a capsule, and flagella distributed over its surface, that can form endospores for survival of adverse conditions.
C) Spherical bacterium with a thick cell wall, a slime layer, and a single flagellum at one side of the cell.
D) Rod-shaped bacterium with a thin cell wall, a capsule, and single flagellum at one end, that can form endospores for survival in adverse conditions.
E) Rod-shaped bacterium with a thin cell wall, a slime layer, and single flagellum at one end, that can form endospores for survival in adverse conditions.

Question

You discover an encapsulated Gram-positive, peritrichous, spore-forming bacillus. Which of the following describes the organism?
A) Spherical bacterium with a thin cell wall, a slime layer, and flagella distributed over its surface, that can form endospores for survival of adverse conditions.
B) Rod-shaped bacterium with a thick cell wall, a capsule, and flagella distributed over its surface, that can form endospores for survival of adverse conditions.
C) Spherical bacterium with a thick cell wall, a slime layer, and a single flagellum at one side of the cell.
D) Rod-shaped bacterium with a thin cell wall, a capsule, and single flagellum at one end, that can form endospores for survival in adverse conditions.
E) Rod-shaped bacterium with a thin cell wall, a slime layer, and single flagellum at one end, that can form endospores for survival in adverse conditions.

Quizplus · Accepted Answer

The description of a peritrichous, spore-forming, Gram-positive, encapsulated bacillus matches the characteristics of Bacillus anthracis, the causative agent of anthrax. Bacillus anthracis is a rod-shaped bacterium with a thick cell wall, flagella distributed over its surface, and can form endospores for survival in adverse conditions. It also has a capsule, which contributes to its virulence.

You Discover an Encapsulated Gram-Positive, Peritrichous, Spore-Forming Bacillus