Open Question
Which of the following is false about fimbriae?
a. They are composed of protein.
b. They may be used for attachment.
c. They are found on gram-negative cells.
d. They are composed of pilin.
e. They may be used for motility.
7. Prokaryotic Cell Structures & Functions
Fimbriae & Hami
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Which of the following structure is found only in archaea?
A
Peptidoglycan
B
Hami
C
Fimbriae
D
Pili
Verified step by step guidance1
Begin by understanding the unique characteristics of archaea compared to bacteria and eukaryotes. Archaea are a distinct domain of life with unique structural features.
Review the structural components commonly found in bacteria, such as peptidoglycan, which is a major component of bacterial cell walls but not found in archaea.
Examine the structures listed in the problem: peptidoglycan, hami, fimbriae, and pili. Identify which of these are typically associated with bacteria and which are unique to archaea.
Focus on hami, which are unique to certain archaea. Hami are filamentous appendages that resemble hooks and are used by archaea for attachment to surfaces.
Conclude that hami are the structure found only in archaea, distinguishing them from other domains of life.
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Fimbriae & Hami practice set
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