NEET BIOLOGY

Detailed explanation-1: -The stele consists of vascular tissue, ground tissue or pith, and a pericycle . The pericycle mainly forms the outermost boundary of the stele. Therefore, the stele can be explained as the vascular bundle. The stele is composed of mainly three tissues which are the pericycle, the xylem, and the phloem.

Detailed explanation-2: -Tissues which are present inner to endodermis, namely pericycle, vascular bundle and pith constitute the stele.

Detailed explanation-3: -The endodermis is the innermost layer of the cortex and is not a component of stele.

Detailed explanation-4: -All tissues inside the endodermis such as the pericycle, xylem, phloem and pith constitute the stele.

Detailed explanation-5: -The stele constitutes the centre part of a root or stems comprising vascular and other ground tissues. The stele’s tissues are derived from the procambium, such as pericycle, pith, vascular tissue, etc. The two types of stele seen in plants are protostele and siphonostele.