Which of the following is not associated with most species of bacteria?
A. nucleoid,
B. plasmid,
C. many copies of chromosomes
D. close circular double stranded DNA of chromosome;.
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Which of the following is not a function of a glycocalyx?
A. It forms pseudopods for faster mobility of an organism.
B. It can protect a bacterial cell from drying out.
C. It protects a bacterial cell from killing by phagocytes.
D. It allows a bacterium to stick to a host.
Gram+ bacteria is stained into _____ color; Gram- bacteria stained into ______.
A. blue + purple;
B. blue + red
C. yellow + red
D. balck + red
Which one of the following structure mediates conjugation?
A. capsule
B. endospore
C. sex pili
D. flagellum
Which one of the following structure mediates antiphagocytosis?
A. capsule
B. flagellum
C. fibmria
D. endospore
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