NEETBotanyCell Cycle and Cell Division
What is the function of mitotic divisions in the meristematic tissues of plants?
Options
- ATo replace damaged cells.
- BTo restore the nucleo-cytoplasmic ratio.
- CTo produce diploid daughter cells with identical genetic complement.
- DTo allow for continuous growth throughout the plant's life.
Correct answer
D. To allow for continuous growth throughout the plant's life.
Step-by-step solution
Cell growth results in disturbing the ratio between the nucleus and the cytoplasm. It therefore becomes essential for the cell to divide to restore the nucleo-cytoplasmic ratio. A very significant contribution of mitosis is cell repair. The cells of the upper layer of the epidermis, cells of the lining of the gut, and blood cells are being constantly replaced. Mitotic divisions in the meristematic tissues – the apical and the lateral cambium, result in a continuous growth of plants throughout their life.