- Cellular respiration is a source of energy for cell activities
- Cellular respiration is when cells extract energy from food to produce energy
- So, cellular respiration produces energy for cell activities by extracting energy from food

So, cellular respiration produces energy for cell activities by extracting energy from food
Q: What is the result of cellular respiration?
Context:
- Cellular respiration is a source of energy for cell activities 
- Cellular respiration is when cells extract energy from food to produce energy