Question

Which of the following forms the cytoskeleton of a cell?

• A. Microtubules
• B. Microfilaments
• C. Lysosomes
• D. Both A and B

Answer 1

Answer: (D)

Both A and B

Cytoskeletal structures are fibrous or fine tubular structures which constitute the supportive structures of the cell. The term cytoskeleton was coined by Koltzoff in 1928. Microfilaments are composed of actin filaments. These are filamentous structures in the cytoplasm of eukaryotic cells and forms a part of the cytoskeleton. It helps in cytokinesis, amoeboid movement and cell motility. Microtubules are the structural components composed of tubulin. It helps in cell division and forms an important component of cilia and flagella.

So, the correct answer is option D.