Cells take in small, energy-rich molecules from food. These molecules include sugar molecules. Cells use the molecules in a long series of chemical reactions. These reactions are known together as cellular respiration. Cellular respiration breaks down energy-rich molecules to form different molecules. This process also releases energy. Which of the following statements are true about cellular respiration? Select all that apply. 1.Cellular respiration occurs inside cells. 2.Cellular respiration releases energy. 3.Cellular respiration involves many chemical reactions.
4.Cellular respiration produces sugar molecules. ​