Question

Intermediate filaments: 4 classes; which are found in cytoplasm and which are found in the nucleus? Where are they found specifically?

a) Cytoplasm: Keratins, Nucleus: Lamins, Found in skin
b) Cytoplasm: Vimentins, Nucleus: Neurofilaments, Found in neurons
c) Cytoplasm: Desmins, Nucleus: Lamins, Found in muscle cells
d) Cytoplasm: Keratins, Nucleus: Lamins, Found in muscle cells

Answer 1

Intermediate filaments include desmins in the cytoplasm of muscle cells and lamins in the nucleus, which are important for cellular integrity and structure.

Step-by-step explanation:

The correct answer is c) Cytoplasm: Desmins, Nucleus: Lamins, Found in muscle cells. Intermediate filaments are a diverse group of cytoskeletal elements crucial for cell structure and function. In the cytoplasm, desmins are intermediate filament proteins specifically found in muscle cells, where they play a role in anchoring cells together and transmitting the forces of muscle contraction. In the nucleus, lamins form part of the nuclear lamina, providing structural support to the nuclear envelope.