Question

The cells of the quiescent centre are characterized by

• A. Having dense cytoplasm and prominent nuclei
• B. Having light cytoplasm and small nuclei
• C. Dividing regularly to add to the corpus
• D. Dividing regularly to add to tunica

Answer 1

The correct option is B Having light cytoplasm and small nuclei

According to 'quiescent centre theory', root apical meristem is present as the tip of main root and has a biconvex quiescent centre in its centre which is characterized by presence of inactive cells with less number of cell organelles, light cytoplasm, small nuclei and low synthesis of DNA, RNA and protein caused by low frequency of cell division, mitosis. Thus, the correct answer is option B.