Multiple Choice
In blue-white screening used to identify recombinant bacteria, why are white colonies considered desirable rather than blue colonies?
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7. Prokaryotic Cell Structures & Functions
Introduction to Bacterial Cell Walls
Multiple Choice
In the context of bacterial cell structure, which component of the flagellum is responsible for anchoring the flagellum to the cell wall and plasma membrane?
A
Filament
B
Hook
C
Pilus
D
Basal body
Verified step by step guidance1
Understand the structure of the bacterial flagellum, which consists of three main parts: the filament, the hook, and the basal body.
Recognize that the filament is the long, whip-like structure that extends outside the cell and is responsible for motility.
Know that the hook connects the filament to the basal body and acts as a flexible coupling.
Identify the basal body as the component embedded in the cell envelope, anchoring the flagellum to the cell wall and plasma membrane.
Recall that the pilus is a different structure used for attachment and conjugation, not part of the flagellum.
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