“Energy cannot be created and destroyed, but it can be converted from one form to another”. The plant uses sun light energy to make sugar molecules. In the plant cell, the chloroplast harvests energy from light that is transferred to another set of molecules. The second set of molecules uses the energy to form sugar from carbon dioxide and water. This particular sunlight energy involves the conversion of light energy to chemical energy. Most of the cellular activity is carried out by transfer of chemical energy from one molecule to another molecule.

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Chapter 4, Problem 1SQ

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Introduction: “Energy cannot be created and destroyed, but it can be converted from one form to another”. The plant uses sun light energy to make sugar molecules. In the plant cell, the chloroplast harvests energy from light that is transferred to another set of molecules. The second set of molecules uses the energy to form sugar from carbon dioxide and water. This particular sunlight energy involves the conversion of light energy to chemical energy. Most of the cellular activity is carried out by transfer of chemical energy from one molecule to another molecule.

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