NEETBotanyAnatomy of Flowering Plants
In a transverse section of a typical dicotyledonous root, which of the following statements correctly describes the tissue layer located immediately inner to the endodermis?
Options
- AIt consists of thick-walled parenchymatous cells that initiate lateral roots and vascular cambium during secon
- BIt is characterised by the presence of water-impermeable waxy suberin depositions on its radial and tangential
- CIt consists of parenchymatous cells lying between the xylem and phloem patches.
- DIt is composed of cells rich in starch grains, often referred to as the starch sheath.
Correct answer
A. It consists of thick-walled parenchymatous cells that initiate lateral roots and vascular cambium during secon
Step-by-step solution
The tissue layer located immediately inner to the endodermis in a dicot root is the pericycle. The pericycle consists of a few layers of thick-walled parenchymatous cells. It is responsible for the initiation of lateral roots and vascular cambium during secondary growth. The presence of water-impermeable waxy suberin depositions (Casparian strips) is a characteristic of the endodermis itself, not the layer inner to it. Parenchymatous cells lying between the xylem and phloem patches constitute the conjunctive tissue