Final answer:
Photosynthesis and cellular respiration are essential processes in living organisms, with photosynthesis converting light energy into chemical energy, and cellular respiration releasing energy from glucose.
Explanation:
Photosynthesis and cellular respiration are interconnected processes in living organisms. Photosynthesis converts light energy into chemical energy, producing glucose and oxygen, while cellular respiration breaks down glucose to release energy and form carbon dioxide and water. The leaf disk floating to the top of the water in an experiment indicates photosynthesis is occurring as it produces oxygen, causing the disk to rise.
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