Table of contents

1. Overview of Cell Biology2h 49m
2. Chemical Components of Cells1h 14m
3. Energy1h 33m
4. DNA, Chromosomes, and Genomes2h 31m
5. DNA to RNA to Protein2h 31m
6. Proteins1h 36m
7. Gene Expression1h 42m
8. Membrane Structure1h 4m
- The Lipid Bilayer
  38m
- Membrane Proteins
  25m
9. Transport Across Membranes1h 52m
10. Anerobic Respiration1h 5m
11. Aerobic Respiration1h 11m
12. Photosynthesis52m
13. Intracellular Protein Transport2h 18m
14. Cell Signaling1h 28m
15. Cytoskeleton and Cell Movement1h 39m
16. Cell Division3h 5m
17. Meiosis and Sexual Reproduction50m
18. Cell Junctions and Tissues48m
19. Stem Cells13m
- Stem Cells
  13m
20. Cancer44m
21. The Immune System1h 6m
22. Techniques in Cell Biology1h 41m

15. Cytoskeleton and Cell Movement

Intermediate Filaments

Cell Biology

15. Cytoskeleton and Cell Movement

Intermediate Filaments

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Multiple Choice

Which of the following is not a class of intermediate filaments?

Nuclear lamins

Neurofilaments

Vimentin

Integrins

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Verified step by step guidance

Understand the role of intermediate filaments: Intermediate filaments are one of the three main components of the cytoskeleton in eukaryotic cells, providing structural support and playing a role in cell shape and integrity.

Identify the classes of intermediate filaments: Common classes include nuclear lamins, which support the nuclear envelope; neurofilaments, which are found in neurons; and vimentin, which is present in mesenchymal cells.

Recognize the function of integrins: Integrins are not intermediate filaments. They are transmembrane receptors that facilitate cell-extracellular matrix adhesion, playing a crucial role in cell signaling and the regulation of cell cycle, shape, and motility.

Differentiate between cytoskeletal components: Intermediate filaments are distinct from other cytoskeletal elements like microtubules and actin filaments, and integrins are not part of the cytoskeleton but are involved in cell adhesion.

Conclude by identifying the outlier: Based on the understanding of the roles and classifications, determine that integrins do not belong to the class of intermediate filaments, as they serve a different function in the cell.