Question

Endoskeleton of a cell is formed by

• A. Endoplasmic reticulum
• B. Microtubles
• C. Microfilaments
• D. All of the above

Answer 1

The correct option is D All of the above

Cytoskeletal structures are fibrous or fine tubular structures which constitute the supportive structures of the cell. Cytoskeletal structures are of three types - microtubules, microfilaments and intermediate filaments. Endoplasmic reticulum is an extensive network of membrane lined channels found in all eukaryotic cells except mature erythrocytes. The extensive network of membranes is believed to be supporting the cytoplasm besides several other functions.