Does mitochondria play a role in respiration?

Yes, mitochondria play a crucial role in cellular respiration. They are often referred to as the "powerhouses" of the cell because they generate adenosine triphosphate (ATP), the primary energy currency of the cell, through processes like the citric acid cycle and oxidative phosphorylation. During these processes, mitochondria utilize oxygen to help convert nutrients into energy, making them essential for aerobic respiration.