Question
Explain the structure and movement of Eukaryotic flagella.
✓
Answer
Structure: Eukaryotic Flagella are enclosed by unit membrane and it arises from a basal body. Flagella is composed of outer nine pairs of microtubules with two microtubules in its centre (9 + 2 arrangement). Flagella are microtubule projection of the plasma membrane. Flagellum is longer than cilium (as long as 200 m). The structure of flagellum has an axoneme made up microtubules and protein tubulin.
Movement: Outer microtubule doublet is associated with axonemal dynein which generates force for movement. The movement is ATP driven. The interaction between tubulin and dynein is the mechanism for the contraction of cilia and flagella. Dynein molecules uses energy from ATP to shift the adjacent microtubules. This movement bends the cilium or flagellum.
Movement: Outer microtubule doublet is associated with axonemal dynein which generates force for movement. The movement is ATP driven. The interaction between tubulin and dynein is the mechanism for the contraction of cilia and flagella. Dynein molecules uses energy from ATP to shift the adjacent microtubules. This movement bends the cilium or flagellum.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Explain the process of photolysis of photolysis water with suitable diagram.
Explain the various types of Schizocarpic fruit.
Draw a flow chart depicting the Bentham and Hooker Classification.
Define bud. Explain the types of buds based on location.
Explain the two hypothesis of explaining the mechanism of vernalization.
Explain in detail about absorption spectrum and action spectrum of light.
Give the details of minerals and their deficiency symptoms.
Explain in detail about Fluid mosaic model.
What is protostele? Explain its types.
Tabulate the economic importance of algae.