CHILD DEVELOPMENT PEDAGOGY

Detailed explanation-1: -The vascular cambium arises between the primary xylem and phloem of a young stem or root. Parenchymatous cells become meristematic and begin to produce secondary xylem or wood toward the inside of the cambium and secondary phloem toward the outside of the cambium.

Detailed explanation-2: -The cambium present between primary xylem and primary phloem is called the intrafascicular cambium (within vascular bundles).

Detailed explanation-3: -In woody roots the vascular cambium (the lateral meristem that gives rise to secondary phloem and secondary xylem) originates in the pericycle as well as in the procambium; the procambium is the primary meristematic tissue between the primary phloem and xylem.

Detailed explanation-4: -Solution : In gymnosperms and dicot stems a strip of vascular cambium occurs between phloem and xylem of each vascular bundle. It is called intrafascicular (or fascicular) cambium. This strip of vascular cambium later produces secodary tissues. Such vascular bundles are described as open.

Detailed explanation-5: -In dicot root, parenchyma tissue is found between the xylem and phloem. This tissue is called as conjunctive tissue.