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  4. The prokaryotic flagella possess

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Q. The prokaryotic flagella possess

AIPMTAIPMT 1995Cell : The Unit of Life

Solution:

Prokaryotic flagellum is not surrounded by any membrane. It consists of a single thread. The thread is made of numerous identical spherical protein sub-units called, flagellin. Each subunit is about 40 A in diameter. The flagellin sub-units are arranged in helical spirals and form a hollow cylinder. Each flagellum is about 120-150 A thick.