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CHAPTER 9 RESPIRATION

Definition Important plant life process such as proteins, fats and carbohydrates, require certain expenditure of energy. This energy is mainly derived from the breakdown of complex macromolecules. During photosynthesis, light energy is converted into chemical energy and stored in the bonds of complex organic molecules. The major portion of stored energy in plants is found in the form of carbohydrates like glucose and starch.

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