Question

What are dynein arms ? What is their significance

Answer 1

Answer:

Dynein is a multisubunit protein composed of two heavy chains that contain the motor and MT- binding Domains and several accessory light chains that provide structural integrity and support interactions with other proteins.

Answer 2

1. Dynein arms :- In cross section of flagellum, the 'A' tubule of each peripheral doublet bears paired arms along its length. They are called dynein arms.

2. Significance :- Dynein arms bring about sliding movement of microtubules utilising ATP so that flagellum or celium bends.