Final answer:
Motor proteins move along microtubules or actin using globular heads that can hydrolyze ATP.
Step-by-step explanation:
Motor proteins move along microtubules or actin using: d. globular heads that can hydrolyze ATP.
Motor proteins such as dynein and kinesin are ATPases that use the free energy from ATP hydrolysis to power intracellular motility. These motor proteins have globular heads that can hydrolyze ATP, allowing them to move along microtubules or actin filaments within the cell.