Final answer:
Mitochondria absorb Oxygen, ADP, Phosphate ions, and Organic substrates. The process of capturing energy occurs through oxidative phosphorylation, which is part of the electron transport chain in the mitochondria.
Step-by-step explanation:
Mitochondria absorb Oxygen, ADP, Phosphate ions, and Organic substrates. The process of capturing energy from these substances occurs through oxidative phosphorylation, which is part of the electron transport chain in the mitochondria. Electrons from NADH and FADH2 are passed along the chain, allowing for the generation of ATP through the pumping of hydrogen ions and the diffusion of these ions through ATP synthase.