AP BIOLOGY

Detailed explanation-1: -Mesophylls are the internal ground tissue present in leaves. There are two types of mesophyll cells in the leaves namely palisade mesophyll and spongy mesophyll. Mesophyll cells are provided with a large number of chloroplast. Photosynthesis occurs in the chloroplast.

Detailed explanation-2: -The major cells of the ground tissue are parenchyma cells, which function in photosynthesis and nutrient storage. They have thin walls, many chloroplasts, and large central vacuoles, and they form the mass of most leaves, stems, and roots.

Detailed explanation-3: -You should notice that the vast majority of chloroplasts are found in the cells of the mesophyll. Even more specifically, the palisade layer has the most chloroplasts, so the greatest amount of photosynthesis occurs in that leaf layer.

Detailed explanation-4: -The ground tissue serves as a site for photosynthesis, provides a supporting matrix for the vascular tissue, and helps to store water and sugars. The vascular tissue transports water, minerals, and sugars to different parts of the plant.