Final answer:
ATP-driven pumps, such as the sodium-potassium pump and H+-K+-ATPase, play important roles in cellular processes by using ATP energy to transport ions across the cell membrane.
Step-by-step explanation:
One example of an ATP-driven pump is the sodium-potassium pump (Na+/K+ pump). This pump uses energy from ATP to move three sodium ions out of the cell and bring two potassium ions into the cell. Another example is the H+-K+-ATPase, which carries hydrogen and potassium ions. These pumps are necessary for various cellular processes, including maintaining the cell's resting membrane potential and regulating osmotic balance.