The answer is c) keratin, intermediate filaments.
What are keratin intermediate filaments?
- In epithelia, keratin intermediate filaments are widely distributed and organize into cytoskeletal networks that support cell type-specific processes like adhesion, migration, and metabolism. These functionalities are maintained via a continuous cycle of keratin filament turnover.
- The cytoskeleton's main structural element, the intermediate filaments, are made up of a few smaller subgroups as well as the five major subgroups vimentin, keratins, desmin, neurofilaments, and glial fibrillary acidic protein (GFAP) (e.g., nestin, peripherin).
- A protein called keratin aids in the formation of your skin's outer layer, hair, and nails (epidermis). Your skin is supported, wounds are treated, and your hair and nails are kept in good condition.
- In contrast to actin filaments and microtubules, intermediate filaments are extremely stable structures that make up the real skeleton of the cell. They provide the cell its elastic qualities and its capacity to tolerate tension. They also anchor and place the nucleus within the cell.
Hemidesmosomes are found in the basal membrane of the epithelial cells, which helps to attach to the basal lamina. hemidesmosomes contain integrin proteins it is attached to laminin protein in the basal lamina and in the cytoplasmic side it is attached to intermediate filaments made of keratin.
These filaments are composed of the protein and are best known as actin, intermediate filaments.
Therefore, the answer is c) keratin, intermediate filaments.
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