7th grade science , help me please :))

1. Organisms in just large molecules like carbohydrates proteins and fats and convert them into small molecules like carbon dioxide and water.
2. During cellular respiration of glucose molecule is gradually broken down into carbon dioxide and water. Then some ATP is produced directly in the reactance that transformers glucose.
3. Photosynthesis converts carbon dioxide and water into oxygen and glucose. While, cellular respiration converts oxygen and glucose into water and carbon dioxide.

A. is your answer.  hope this