Cellular respiration primarily involves the following reactants:
- Glucose (C6H12O6) - A simple sugar that serves as the primary energy source.
- Oxygen (O2) - Essential for aerobic respiration, acting as the final electron acceptor in the electron transport chain.
These reactants are utilized in the overall cellular respiration process to produce energy (ATP), carbon dioxide (CO2), and water (H2O) as byproducts.