Answer:
Plants use light energy to produce food molecules during photosynthesis and obtain cellular energy from the bonds of these food molecules during cellular respiration.
Step-by-step explanation:
Photosynthesis is the process by which organisms, such as green plants, use light energy to produce food. Cellular respiration is the process by which living things, including both plants and animals, obtain energy from the bonds of food molecules. Therefore, plants use light energy to produce food molecules during photosynthesis, and obtain cellular energy from the bonds of these food molecules during cellular respiration.