Which bacteria have cell walls that are approximately 10-20% peptidoglycan? (correct answers)Gram-
negative
Which bacteria are difficult to stain? (correct answers)Wall-deficient
Which of the following types of bacteria are slow growing, due to the high lipid content of their cell
walls? (correct answers)Acid-fast
Which of the following types of bacteria have strong cellular membranes that contain sterols? (correct
answers)Wall-deficient
Which of the following types of bacteria have both a cell membrane and an outer membrane? (correct
answers)Gram-negative
Which of the following is an endotoxin, which can cause fever and inflammation, and is associated with
Gram-negative bacteria? (correct answers)Lipopolysaccharide
Which of the following structures is associated with Gram-negative bacteria and is an active area of cell
metabolism? (correct answers)Periplasmic space
Which of the following structures is associated with Gram-positive bacteria? (correct answers)Teichoic
Acid
What term is used to describe bacterial cells that are spherical in shape? (correct answers)Coccus
, Which of the following is a function of a capsule? (correct answers)Allows bacteria to adhere to surfaces
and each other
Which of the following is a function of peptidoglycan? (correct answers)Protects cells from bursting
Which of the following is a function of the cell membrane? (correct answers)Regulates movement of
substances into and out of the bacterial cell
Which of the following statements about pili is false? (correct answers)They promote chemotaxis
Which of the following statements about endospores is false? (correct answers)They are used in
reproduction
Which of the following statements is true about chemotaxis? (correct answers)Flagella facilitate
chemotaxis
What are intracellular pathogens that require a host cell to replicate? (correct answers)Viruses
Which of the following statements is true about reverse transcriptase? (correct answers)It is associated
with the Retroviridae Family
What is the difference between a naked virus and an enveloped virus? (correct answers)An enveloped
virus contains an external membrane, but the naked virus does not
Which of the following is not a viral group? (correct answers)Positive sense DNA virus
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