Question

The cells of the quiescent center are characterised by

(a) having dense cytoplasm and prominent nuclei

(b) having light cytoplasm and small nuclei

(c) dividing regularly to add tothe corpus

(d) dividing regularly to add to tunica (2003)

Answer 1

Answer:(b) having light cytoplasm and small nuclei

In the apices of some roots, there is a central region of cells which normally does not divide.This central inactive region was called quiescent center by F.A.L. Clowes.The cells of this region have lesser amounts of RNA and DNA’ so they have small nuclei.The cells of the quiescent center are usually inactive. However, if already existing meristematic cells are injured or become inactive due to any other reason, the cells of quiescent center become active.