Question

How many tissue layers in the list given below, are derived from plerome
Pericycle, Xylem, Phloem, Pith, Pith rays, Hypodermis, Endodermis, Epidermis
(1) Four
(2) Six
(3) Five
(4) Seven​

Answer 1

Answer: Four

Explanation:

Plerome is the primary meristem. It forms the central core of a plant or plant part. It ultimately gives rise to the stele (which includes the vascular tissue, pith and pericycle).

The part of plerome from which vascular tissues are ultimately formed is called procambium.

Hence, there are four tissue layers derived fom plerome.

Hope it helps!

Answer 2

Five

Explanation:

Plerome is a histogen which gives rise to the stele components i.e. pericycle, pith and vascular bundles....and which ultimately makes the procambium ...so in the above question pericycle,xylem,phloem ( which are vascular bundles) pith and pith rays all will be formed by plerome ..... hypodermis, endodermis and epidermis are made by epidermal tissue system so the correct answer is five not four ....