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Ch.3 Prokaryotes

Structures & Functions of Prokaryotes

QuestionAnswer
Which of the following prokaryotic cells contains an outer membrane? Gram-negative bacteria
Which of the following may have cell walls containing teichoic acids? Gram-positive bacteria
A bacterial cell moving toward light would be an example of positive phototaxis.
Which of the following statements concerning pili is FALSE? A bacterial cell will usually have only one or two pili. Pili facilitate the transfer of DNA among bacterial cells. Pili are long, hollow tubules. *Pili are longer than fimbriae and flagella. Not all bacteria have pili.
A(n) ________ is a type of glycocalyx that is firmly attached to the cell. capsule
The cytoplasmic membranes of __________ contain lipids. All prokaryotes
________ is a part of the Gram-negative cell wall that can produce fever, inflammation, and shock when it is released into the bloodstream. Lipid A
A bacterial cell stains positive with the acid-fast stain. Which of the following is NOT true? It will be difficult to stain this cell with the Gram stain. **It has a cell wall that contains endotoxin. It may be a member of the genus Mycobacterium. It has a cell wall that contains waxy lipids.
ipid A is also known as endotoxin
Which of the following chemical substances contributes to the unique characteristics of acid-fast bacteria? mycolic acid
Which of the following bacterial cell structures plays an important role in the creation of biofilms? both fimbriae and glycocalyces
The filament and basal body are associated with which of the following external structures found in some bacterial cells? flagella
Created by: jadextran
 

 



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