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1Which of the following may have cell walls containing teichoic acids? Gram-nega

ID: 18465 • Letter: 1

Question

1Which of the following may have cell walls containing teichoic acids?

Gram-negative bacteria
Archaea
Gram-positive bacteria
Both Gram-positive and Gram-negative bacteria
All prokaryotes

2Bacterial pili can be described as

solid, rigid protein structures.
assembled of carbohydrates.
composed of tubulin.
composed of peptidoglycan.
composed of pilin.

3The filament and basal body are associated with which of the following external structures found in some bacterial cells?

flagella
pili
fimbriae
glycocalyx

4Which of the following would NOT be expected to be present in a biochemical analysis of an archaeal cell?

cytoplasmic membranes
peptidoglycan
branched hydrocarbons
membrane proteins

5Hopanoids are found in __________ cytoplasmic membranes.

archaeal
prokaryotic
eukaryotic
bacterial
no

6.Which of the following would NOT be found in the cytoplasm of a bacterial cell?

porins
nucleoid
ribosomal RNA
endospores

7.Which of the following is NOT a component of bacterial flagella?

tubulin
flagellin
filament
hook
basal body

8.Lipid A is also known as

endotoxin.
lipopolysaccharide.
mycolic acid.
pilin.
teichoic acid.

9.Lipid-soluble molecules would be expected to cross the cytoplasmic membrane by which of the following processes?

facilitated diffusion
group translocation
osmosis
active transport
diffusion

10.An organism of the genus Staphylococcus is ________, while an organism of the genus Spirochaeta is ________.

spherical / rod shaped
rod shaped / coiled
spherical / coiled
coiled / spherical

Explanation / Answer

1Which of the following may have cell walls containing teichoic acids?

Gram-negative bacteria
Archaea
Gram-positive bacteria
Both Gram-positive and Gram-negative bacteria
All prokaryotes

2Bacterial pili can be described as

solid, rigid protein structures.
assembled of carbohydrates.
composed of tubulin.
composed of peptidoglycan.
composed of pilin.

3The filament and basal body are associated with which of the following external structures found in some bacterial cells?

flagella
pili
fimbriae
glycocalyx

4Which of the following would NOT be expected to be present in a biochemical analysis of an archaeal cell?

cytoplasmic membranes
peptidoglycan
branched hydrocarbons
membrane proteins

5Hopanoids are found in __________ cytoplasmic membranes.

archaeal
prokaryotic
eukaryotic
bacterial
no

6.Which of the following would NOT be found in the cytoplasm of a bacterial cell?


nucleoid
ribosomal RNA
endospores

7.Which of the following is NOT a component of bacterial flagella?

tubulin
flagellin
filament
hook
basal body

8.Lipid A is also known as

endotoxin.
lipopolysaccharide.
mycolic acid.
pilin.
teichoic acid.

9.Lipid-soluble molecules would be expected to cross the cytoplasmic membrane by which of the following processes?

facilitated diffusion
group translocation
osmosis
active transport
diffusion

10.An organism of the genus Staphylococcus is ________, while an organism of the genus Spirochaeta is ________.

spherical / rod shaped
rod shaped / coiled
spherical / coiled
coiled / spherical

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