These cells are the most abundant and common in plants. Containing large vacuoles fully filled with water, for storage, and thin walls for nutrient diffusion, parenchyma cells help with the process of photosynthesis. Throughout the plant, these cells have chloroplasts and plastids with help with the storage and maintenance of starch. Parenchyma cells are also present in the fleshy part of the fruit we eat. In the plant pictured above, one can see how the thick leaves display a large amount of water storage.