key term - Cytoskeleton

Definition

The cytoskeleton is a network of protein fibers within a cell that provides structure, support, and aids in cellular movement. It consists of microtubules, actin filaments, and intermediate filaments that help maintain cell shape and enable intracellular transport.

Related terms

Microtubules:

Hollow tubes made of tubulin proteins that provide structural support and play roles in cell division and transport of materials within the cell.

Actin Filaments: Thin strands composed of actin protein that are involved in various forms of cellular movement including muscle contraction, cell division, and cell signaling.

Intermediate Filaments:

Durable, rope-like networks of proteins that provide mechanical strength to cells against physical stress