- Cellular respiration is when cells break down / extract energy from food to produce energy
- Cellular respiration is a source of energy for cell activities
- Therefore, cellular repiration produces energy for cell activites by extracting energy from food

Therefore, cellular repiration produces energy for cell activites by extracting energy from food
[Question]Which of the following best describes the purpose of cellular respiration?
[Context]- Cellular respiration is when cells break down / extract energy from food to produce energy 
- Cellular respiration is a source of energy for cell activities