Question

The cells of the quiescent centre are characterised by

• A. Dense cytoplasm and prominent nuclei.
• B. Less amount of cytoplasm and small nuclei.
• C. Regular division to add to the corpus.
• D. Regular division to add to tunica.

Answer 1

The correct option is B

Less amount of cytoplasm and small nuclei.

In the apices of some roots, (e.g., Zea mays or maize), there is a central region of cells which normally does not divide. The cells of this region have a small nuclei and lesser amounts of cytoplasm. The cells of the quiescent centre are usually inactive. However, if already existing meristematic cells are injured or become inactive due to any other reason, the cells of quiescent centre become active.