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Chapter 3

QuestionAnswer
Which of the following is not a characteristic of bacteria? Its DNA is wrapped around histones.
The two functions of bacterial appendages are _________. attachment and motility
Bacterial cells could have any of the following appendages except _________. cilia
A flagellum is anchored into the bacterial cell envelope by its _________. basal body
The term that refers to the presence of flagella over the cell surface is _________. peritrichous
The term that refers to the presence of a tuft of flagella emerging from the same site is _________. lophotrichous
The term that refers to flagella at both poles is _________. amphitrichous
Chemotaxis refers to the ability to _________. move in response to a chemical
What three components comprise the flagellum, extending from the cytoplasm to the exterior of the cell? Basal body, hook, filament
Movement of a cell toward a chemical stimulus is termed _________. positive chemotaxis
The short, numerous appendages used by some bacterial cells for adhering to surfaces are called _________. fimbriae
The transfer of genes during bacterial conjugation involves rigid, tubular appendages called _________. sex pili
Which structure protects bacteria from being phagocytized by white blood cells? Capsule
The outcome of the Gram stain is based on differences in the cell's _________. Wall
Which order below reflects the correct procedure for Gram staining? Crystal violet–iodine–alcohol/acetone–safranin
can be composed of three layers: the cytoplasmic membrane, the cell wall, and the outer membrane. envelope
During the Gram stain, _________ cells decolorize when the alcohol is applied. gram-negative
Peptidoglycan is a unique macromolecule found in bacterial _________. cell walls
A bacterial cell wall that has primarily peptidoglycan with small amounts of teichoic acid and lipoteichoic acid is _________. gram - positive
The _________ stain is used to stain and differentiate Mycobacterium and Nocardia from other bacteria. acid-fast
Created by: A00601845
 

 



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