Respuesta :
Unlike plant cells, the animal cells do not possess a cell wall that is why they exhibit unique compositions, which maintains the cell composition and shape, this three-dimensional structure is called cytoskeleton.
The cytoskeleton functions as both muscle and skeleton and maintains the shape of the cell. It also looks after the intracellular movements taking place in a cell. The cytoskeleton is formed of three distinct kinds of fibers, that is, microtubules, microfilaments, and intermediate filaments.
Cytoskeleton reinforced the shape of the cell.
Further Explanation:
The cytoskeleton is a skeleton or scaffolding that mainly criss-cross the cytoplasm. They are present in the entire eukaryotic cell. Some researcher has studied that prokaryotic cell also has a cytoskeleton. In a eukaryotic cell, the very thin and long fiber of the cytoskeleton is present. They are made up of threadlike protein. The functions of the cytoskeleton are:
- Maintaining the cell shape
- Holding the organelle in a particular place
- Cell division
- Enabling the movement in the cell
The cytoskeleton is of many types and helps in cell functioning. The three major types of cytoskeleton fibers are:
- Microtubules
- Intermediate filaments
- Microfilaments
Microtubules are made up of tubulins, which are the polymer of filaments. Tubulins are of two types alpha and beta which come together to make a dimer. The functions of microtubules are to maintain the cell shape and make spindle fiber. Also, they make up the cilia and flagella.
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Answer Details:
Grade: High School
Subject: Biology
Chapter: Cell
Keywords:
Cell, beta, tubulin, flagella, dimer, cilia, microtubules, microfilament, cytoskeleton, intermediate filament, beta, alpha, cell division, organelle.
