Question

Quiescent centre is region of root apex which is

• A. Actively dividing
• B. Water absorption area
• C. Inactive cells
• D. Root hair area

Answer 1

Answer: (C)

Inactive cells

• The quiescent centre is that part of the root-promeristems that contains the initials of epidermis, cortex and stele.
• These cells divide less frequently as they are inactive and are present at the pole of cortex and stele.
• The cells with QC have small dictyosomes, nuclei and nucleoli.
• These cells also have little endoplasmic reticulum, mitochondria and contain low concentrations of RNA, DNA and protein than the other cells of the root apex.

So, the correct answer is 'Inactive cells'