What are rod shaped organelles that convert oxygen and nutrients in ATP?

Rod-shaped organelles that convert oxygen and nutrients into ATP are called mitochondria. They are often referred to as the "powerhouses" of the cell because they generate adenosine triphosphate (ATP), the energy currency of the cell, through cellular respiration. Mitochondria have their own DNA and are involved in various metabolic processes, making them essential for energy production in eukaryotic cells.