This statement is false. The cytoskeleton does indeed consist of three main components: microtubules, actin filaments, and intermediate filaments, but these components are not carbohydrates; they are proteins.
Microtubules are cylindrical structures made of tubulin, providing structural support and shape to the cell, facilitating intracellular transport and cell division. Actin filaments, also known as microfilaments, are composed of actin proteins and play vital roles in muscle contraction, cell movement, and maintaining cell shape. Intermediate filaments, made of various proteins depending on the cell type, provide mechanical support and help anchor organelles in place.
Therefore, while the statement correctly identifies the three groups of the cytoskeleton, it incorrectly classifies them as carbohydrates rather than proteins.