Talaro's Foundations in Microbiology, 12th
Edition All Chapters 2024/2025 Latest
Update (Questions & Correct Answers)
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Its DNA is wrapped around histones.
Which of the following is not a characteristic of bacteria?
A) Its DNA is not encased in a membrane.
B) It has a cell wall made of peptidoglycans or other distinct chemicals.
C) It does not have membrane-bound organelles.
D) Its DNA is wrapped around histones.
E) All of these are characteristics of bacteria.
Attachment and Motility
The two functions of bacterial appendages are
A) attachment and protection
B) attachment and motility
C) motility and slime production
D) energy reactions and synthesis
E) protection and motility
Cilia
Bacterial cells could have any of the following appendages except
A) flagella
B) cilia
C) fimbriae
D) Periplasmic flagella (axial filaments)
E) sex pili
Periplasmic flagella (axial filaments)
,Spirochetes have a twisting and flexing locomotion due to appendages called
A) flagella
B) cilia
C) fimbriae
D) periplasmic flagella (axial filaments)
E) sex pili
Peritrichous
The term that refers to the presence of flagella over the cell surface is
A) amphitrichous
B) atrichous
C) lophotrichous
D) monotrichous
E) peritrichous
Lophotrichous
The term that refers to the presence of a tuft of flagella emerging from the same site is
A) amphitrichous
B) atrichous
C) lophotrichous
D) monotrichous
E) peritrichous
Amphitrichous
The term that refers to flagella at both poles is
A) amphitrichous
B) atrichous
C) lophotrichous
D) monotrichous
E) petitrichous
Fimbriae
,The short, numerous appendages used by some bacterial cells for adhering to surfaces are
called
A) flagella.
B) cilia.
C) fimbriae.
D) periplasic flagella (axial filaments)
E) sex pili.
Sex pili
The transfer of genes during bacterial conjugation involves rigid, tubular appendages called
A) flagella.
B) cilia
C) fimbriae
D) periplasmic flagella (axial filaments)
E) sex pili
capsule
Which structure protects bacteria from being phagocytized by white blood cells?
A) slime layer
B) fimbriae
C) cell membrane
D) capsule
E) All of the choices are correct
wall
The outcome of the Gram stain is based on differences in the cell's
A) ribosomes
B) inclusions
C) wall
D) membrane
E) flagella
envelope
, The cell _______ can be composed of 3 layers: the cytoplasmic membrane, the cell wall, and
the outer membrane.
A) glycocalyx
B) envelope
C) pathogenic package
D) slime coat
E) none of the choices is correct
cell wall
If bacteria living in salty sea water were displaced to a fresh water environment, the call
structure that would prevent the cells from rupturing is the
A) endospore
B) cell wall
C) cell membrane
D) capsule
E) slime layer
cell walls
Peptidoglycan is a unique macromolecule found in bacterial
A) cell walls
B) cell membranes
C) capsules
D) slime layer
E) inclusions
Gram Positive
A bacterial cell wall that has primarily peptidoglycan with small amounts of teichoic acid and
lipoteichoic acid is
A) gram negative
B) gram positive
C) found in archaea
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