Unit 11 – Energy Part III-Cellular Respiration 1)How does the second law of thermodynamics explain why so much pedaling is required? 2)Why is cellular respiration performed in our cells? 3)What are the reactants and products of cellular respiration? 4)How do we obtain each reactant for cellular respiration? 5)What units are used to describe the amount of carbon dioxide? 6)Explain how each of the reactants and products of cellular respiration and photosynthesis are related. 7)What happens to carbon dioxide exhaled into the growth chamber? 8)Why do you breathe harder during and after exercise? 9)Explain why more carbon dioxide was exhaled in one breath after exercise compared to at rest. 10)What would happen if your cells did not receive enough oxygen?