Articles > Quizzes & Surveys > Plant Metabolism – Quiz Plant Metabolism – Quiz Quiz Identify the process being described. Choose the letter of your answer based on the box below. A. Photosynthesis B. Respiration C. Both photosynthesis and respiration D. None of the above 1. Carbon dioxide and water are reactantsABCD 2. Requires light energyABCD 3. Occurs in mitochondriaABCD 4. Produces oxygen as a byproductABCD 5. Occurs in plant cellsABCD Send Your Results (Optional) Your Name To Email Time is Up!