Question

Do primary roots of dicot plant possess cambium?

Answer 1

Answer:

The vascular cambium is the main growth tissue in the stems and roots of many plants, specifically in dicots such as buttercups and oak trees, gymnosperms such as pine trees, as well as in certain vascular plants. It produces secondary xylem inwards, towards the pith, and secondary phloem outwards, towards the bark.

Answer 2

Cambium is absent in the primary root of dicot plants.

Explanation:

• The outermost layer of the dicot root is called the epidermis.

• The cells of this layer are more in number and it ejects out of the root as root hairs.

• Following the epidermis, a few layers of meager walled parenchyma cells with "intercellular spaces" are seen and this layer is called the cortex.  

• Alongside the endodermis, a couple of layers of "thick-walled parenchyomatous cells" structure is called the pericycle. It is found in the primary root.

• During secondary growth, vascular cambium and lateral roots initiates from the pericycle.