Molecular motors are specialized proteins that convert chemical energy into mechanical work within cells. They play a crucial role in various cellular processes, such as transporting materials, cell division, and muscle contraction. These motors move along structures like microtubules and actin filaments, which are part of the cell's cytoskeleton. There are several types of molecular motors, including kinesins, dyneins, and myosins. Each type has a specific function and direction of movement. For example, kinesins typically transport cellular cargo toward the cell's outer edges, while dyneins move in the opposite direction, toward the cell's center.