Question

of a eukaryotic cell plays a major role in organizing the structures and activities of the cell. The cytoskeleton consists of three main types of fibers: microfilaments, intermediate filaments, and microtubules. The three types of fiber differ in size, composition, and the functions they perform in the cell.

Answer 1

Answer:

The difference between the microfilaments, intermediate filaments, and microtubules are stated below.

Explanation:

• Microfilaments:

1. They are made up of two chains made up of monomeric globular proteins called actin. The chains are coiled around each other.
2. They have a diameter of about 7 nanometre.
3. They help in cellular movement.

• Intermediate Filaments:

1. They form strands which are made up of fibrous proteins like keratin, vimentin, desmin.
2. They have a diameter which ranges from 8 nanometre to 10 nanometre.
3. They have structural function and are required to maintain the cell shape and organelle position.

• Microtubules:

1. They are formed when the globular proteins, alpha-tubulin and beta-tubulin form dimer and undergo polymerisation.
2. They have a diameter of about 25 nanometre.
3. They form the structural components of flagella, cilia and centrioles. They prevent cell compression.