Photosynthesis occurs in plants, utilizing sunlight to convert carbon dioxide and water into glucose and oxygen, while respiration occurs in both plants and animals, breaking down glucose to release energy. The flow of electrons plays a crucial role in both processes, with photosynthesis involving reduction and respiration involving oxidation. In plants, photosynthesis and respiration are interconnected; the oxygen produced during photosynthesis is used in respiration. Understanding these processes highlights the fundamental differences in energy conversion between plants and animals. The relationship between photosynthesis and respiration is essential for sustaining life on Earth.
