18. Which is the primary product of light-independent reactions? A. ATP B. Water C. Oxygen 0. Glucose 19. Which best describes light-independent reactions? A. They create energy rich ATP and NADPH B. They are the first phase of photosynthesis C. They use carbon dioxide to make proteins D. They utilize the energy stored in ATP and NADPH 20. Oxygen is essential in cellular respiration. What is the role of oxygen in the electron transport chain? A. It forms water C. It serves as the final acceptor B. It releases an electron Dit provides a high energy proton