What are the structural characteristics of-
(a) Meristematic cells near root tip.
(b) The cells in the elongation zone of the root.
(a) Meristematic cells near root tip are in active state of cell division. The cells are thin walled, have dense cytoplasm and large nucleus.
(b) In this zone, the cells have a large number of small vacuoles. These vacuoles fuse to form one large central vacuole. As a result, cells become elongated and produce longitudinal growth in this region.