Podcast
Questions and Answers
What is the primary function of centrioles during cell division?
What is the primary function of centrioles during cell division?
Which protein primarily composes microtubules?
Which protein primarily composes microtubules?
What is the main structural difference between microfilaments and microtubules?
What is the main structural difference between microfilaments and microtubules?
Where are intermediate filaments primarily located within the cell?
Where are intermediate filaments primarily located within the cell?
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How are the microtubule triplets in a centriole arranged?
How are the microtubule triplets in a centriole arranged?
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Which cellular structures are centrioles involved in forming?
Which cellular structures are centrioles involved in forming?
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In which type of cells are intermediate filaments NOT found?
In which type of cells are intermediate filaments NOT found?
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What is the diameter range of centrioles?
What is the diameter range of centrioles?
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Study Notes
Cell Organelles: Centrioles
- Small, cylindrical structures found in animal cells, some lower plants, and microscopic organisms
- Measure 0.2 µm in diameter and 0.3-0.5 µm long
- Composed of nine microtubule triplets arranged in a cylindrical array
- Typically found in pairs, perpendicular to each other, near the nucleus
- Replicate and migrate to opposite sides of the nucleus during cell division
- Involved in the formation of spindle fibers during cell division
- Play a role in the formation of cilia and flagella
Microtubules
- Long, unbranched, slender structures composed of tubulin protein
- Involved in the assembly and disassembly of other cellular components
Microfilaments
- Thinner cylinders made up of the contractile protein actin
- Linked to the inner face of the plasma membrane
- Involved in cell movement, determining the shape of the cell, and maintaining its shape
Intermediate Filaments
- Located outside of the nucleus
- Found in animal cells, but not in higher plants
- Involved in the determination of cell components
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Description
Learn about centrioles, small cylindrical structures found in animal cells, their structure, and their role in cell division.
