What is apical meristem ?

Explanation

Apical meristem lies at the apex of both the stem and the root. This usually exhibits a dome shaped structure with clear demarcation in the outer layers tunica) and the inner mass (corpus) (Fig). The apical meristem is composed of a small mass of cells which are alike and constitute the promeristem. The cells of the promeristem differentiate into three regions, viz. dermatogen, periblem and plerome, which grow and give rise to primary permanent tissues.