One important difference between the anatomy of roots and the anatomy of leaves is that a. root cells have cell walls and leaf cells do not. b. only leaves have phloem and only roots have xylem. c. leaves have epidermal tissue but roots do not. d. vascular tissue is found in roots but is absent from leaves. e. leaves have mesophyll tissue but roots do not.

e. leaves have mesophyll tissue but roots do not.

Mesophyll tissues are found in the leaves of the plant, they are not found in roots. The primary role of mesophyll tissues is photosynthesis.  Mesophyll tissues are made up of two types of cells.These include palisade parenchyma cells and spongy mesophyll cells. Palisade parenchyma cells are present beneath the upper epidermis of the leaf. They are elongated cells, which contains large number of chloroplast. The chloroplast helps in trapping sunlight energy.The spongy mesophyll cells are present beneath the palisade parenchyma cells and above the lower epidermis of the leaf. These are loosely arranged spherical cells,  which consists of empty spaces or large pores and few chloroplast.  The empty spaces or large pores helps in gas exchange between the internal and external environment of leaf.