which of the following about eukaryotic flagella/cilia is NOT true? a. cell membrane covering the outside...

which of the following about eukaryotic flagella/cilia is NOT true?

a. cell membrane covering the outside of the flagella

b. 9+2 arrangement of microtuble

c. A cylinder basal body with a rotating filament

d. some eukaryotic flagella are adapted for sensory functions

e. about 10 times thicker than bacteria flagella

Solutions

Expert Solution

Statement C) A cylindrical Basal body with a rotating filament is wrong statement.

A) The outer ring of flagellum is surround by an extensiom of cell membrane. ( Hence, this is a correct statement.)

B) Flagella has a 9+2 arrangement of microtubules which means 9 fused pairs of microtubules outside of ring and two unfused microtubules at center of ring are present. ( Hence, this is a correct statement.)

C) Basal body of eukaryotic flagellum is cylindrical but the base is attached to cell membrane and the flagellum prefers to bending rather than rotating & more ATP are required for flagellum to show rotation than bending. So, bending is preferred. ( As flagellum prefers bending than rotating, this is a wrong statement.)

D) Eukaryotic Flagella are not only used for showing movement but are also adapted to cell feeding, reproduction and provide sensation as it has sensory hairs. ( Hence, this is a correct statement.)

E) Bacterial flagella has a diameter of 20 nm and Eukaryotic flagella has a diameter of 200 nm which means Eukaryotic flagella is 10 times more thicker than Bacterial flagella. ( Hence, this is a correct statement.)

gladiator answered 1 year ago

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