DENDROLOGY

Detailed explanation-1: -Mesophyll is a leaf’s core underlying material. It is found in the middle of the leaf, between two layers of epidermal cells. Via chloroplasts, mesophyll is responsible for photosynthesis. There are two mesophyll layers, the spongy mesophyll layer and the palisade mesophyll layer.

Detailed explanation-2: -The spongy mesophyll contains irregularly shaped cells with wide gaps between them in order to facilitate carbon dioxide diffusion and gas exchange via the stomata. Spongy mesophyll also contains chloroplasts responsible for photosynthesis.

Detailed explanation-3: -Spongy tissue is a type of tissue found both in plants and animals. In plants, it is part of the mesophyll, where it forms a layer next to the palisade cells in the leaf. The spongy mesophyll’s function is to allow for the interchange of gases (CO 2) that are needed for photosynthesis.

Detailed explanation-4: -The spongy mesophyll cells are covered by a thin layer of water. Gases dissolve in this water as they move into and out of the cells.