What is the main purpose of the cytoskeleton?

The main purpose of the cytoskeleton is to provide structural support to the cell. It is a complex network of protein filaments and tubules that helps maintain the shape of the cell, anchoring organelles in place and enabling intracellular transport. The cytoskeleton is essential for various cellular functions, including maintaining cell integrity during movement and division, and it plays a crucial role in cell signaling and communication as well.

While other options mention important cellular functions—like metabolic processes, chemical reactions, and nutrient storage—they do not directly relate to the primary role of the cytoskeleton. These functions are primarily associated with other cellular structures or systems within the cell. The cytoskeleton is distinct in its primary responsibility of providing mechanical support and facilitating cellular organization.