What process do plants use to convert CO₂ and water into glucose? A Cellular respiration B Fermentation C Photosynthesis D Glycolysis ✓ Correct Answer: Option C Photosynthesis: 6CO₂ + 6H₂O + light energy → C₆H₁₂O₆ + 6O₂. Practice ACT Exam Prep Quizzes → Browse All Questions Study Flashcards