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Structure of the leaf and its adaptation for photosynthesis The leaf is the organ of a plant in which photosynthesis occurs. For photosynthesis to occur, the chlorophyll, mostly found in leaves, must absorb light energy and transform it into chemical energy used in the synthesis of carbohydrates from water and carbon dioxide. Therefore, the leaf has many adaptations for photosynthesis. Firstly, the structure of a leaf is optimized for absorbing light and carrying out photosynthesis. A typical leaf consists of a lamina, petiole and a leaf stalk. The lamina of a leaf has a large flat surface area with chlorophyll located close to the top surface, for maximum light absorption. The petiole holds the lamina away from the stem so that the lamina can obtain sufficient sunlight and air. As the lamina is very thin, light energy is easily absorbed and carbon dioxide can rapidly reach the inner cells of a...

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