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  4. Bacterial flagella do not show ATPase activity and 9 + 2 organization. These are chemically:

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Q. Bacterial flagella do not show ATPase activity and $9 + 2$ organization. These are chemically:

AFMCAFMC 2006

Solution:

The bacterial flagellum is long, filamentous and protoplasmic appendage that arise in the cell envelope. In the bacterial flagella instead of $9+2$ arrangement of tubulin there is simply a single filament of globular protein called flagellin.
Pilin : It is a distinct protein present is bacteria as sex pili or F-pilin and takes part in conjugation.
Tubulin : These are the protein subunits from which microtubules are assembled.
Bacterin : Is a vaccine prepared from bacteria.