No
It is a complete functional system for photosynthesis, Kerbs cycle, transpiration & diffusion of gases like any organ.
roots stems and leaves
The photosynthetic tissue in a leaf is called the mesophyll. Leaves are made for photosynthesis; for this purpose, leaves are flat and thin, so that the sunlight can penetrate the deepest tissues of...
actually they have tissue because not only human and animals have tissues but also in plants...