Question

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.
cellular respiration involves many chemical reactions.
cellular respiration produces sugar molecules.
cellular respiration releases energy.
cellular respiration occurs inside cells.

Explanation:

• The text states "Cells use the molecules in a long series of chemical reactions. These reactions are known together as cellular respiration", so cellular respiration involves many chemical reactions.
• It also says "Cellular respiration breaks down energy - rich molecules to form different molecules. This process also releases energy", so it releases energy.
• Since it's about cells taking in molecules and using them in reactions, and the name "cellular" implies it occurs in cells.
• However, it breaks down sugar molecules (as it takes in sugar molecules from food and breaks down energy - rich molecules which include sugar), not produces them.

Answer:

• Cellular respiration involves many chemical reactions.
• Cellular respiration releases energy.
• Cellular respiration occurs inside cells.