Final answer:
The digestive and respiratory systems provide the necessary nutrients and oxygen required for ATP production through cellular respiration.
Step-by-step explanation:
The two organ systems that provide the material required for the human body to produce ATP (adenosine triphosphate) are the digestive system and the respiratory system. The digestive system is responsible for breaking down food into molecules that can be absorbed into the blood, such as glucose, which is a key substrate for ATP production. Meanwhile, the respiratory system provides the necessary oxygen for aerobic respiration, a process that takes place in the mitochondria and generates large amounts of ATP. Combined, these systems allow the body to perform important functions such as cellular respiration, required for maintaining homeostasis and supporting activities including physical exercise.