Biology
Grade-6
Easy
Question
The thickest cytoskeleton is
- Microfilaments
- Intermediate filaments
- Microtubules
- All of these
Hint:
The cytoskeleton is mainly composed of three types of fibers, out of which one is the thickest.
The correct answer is: Microtubules
- The thickest cytoskeleton is microtubules.
- The cytoskeleton is the framework of the cell made up of tubules and proteinaceous fibers.
- It is composed of three different types of fibers, microtubules, microfilaments, and intermediate filaments.
- Out of these, the microtubules are the thickest and microfilaments are the thinnest. Microtubules are responsible for giving the shape of the cell. They make a passage through which the various organelles can move.
- They are present in all eukaryotic cells and vary in their lengths.
Microfilaments are the thinnest type of fibers that are present in contractions of the muscles.
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