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In most plants, the leaves contain the most chloroplasts and are the major sites of photosynthesis. Within a leaf, the chloroplasts are concentrated in the cells of the mesophyll, the inner layer of tissue (Figure 8-2).Figure 8-2Photosynthesis takes place in cellular organelles called chloroplasts. In this sunflower, the greatest numbers of chloroplasts are located in the leaves.ithin a leaf, the chloroplasts are concentrated in the cells of the mesophyll, the inner layer of tissue (Figure 8-2). Figure 8-2Photosynthesis takes place in cellular organelles called chloroplasts.
They are found in the leaf to help the plant photosynthesize. This is the part of the plant that turns sunlight and water into food for the plant. Chloroplasts are found in the spongy mesophil layer of the leaves. in the leaf thats why there green because the chlrophyll holds the chloplast which hasa pigment inside.