Task: Text Categorization
Input (English): Proteins associated with these structures include kinesins and dynein, which move along them in order to transport other molecules throughout the cell. Many of these structures in a given cell will be in a state of dynamic instability, in which the protein subunits that make them up can be either added to or removed from the plus end of the structure at any given time. The ability of the structures to shorten is useful during mitosis, when they attach to the kinetochores of chromosomes and pull them toward the spindle poles. For 10 points, name these components of the cytoskeleton, which also make up cilia and are composed of tubulin subunits.
Output (English): Science