A) suberised exodermis, polyarch xylem, pith
B) exodermis, endarch, tetrarchclosedbundles
C) conjoint, collateral, open, polyarch vascular bundle
D) suberised exodermis, casparian strip, passage cells, cambium
Correct Answer: A
Solution :
[a] In the cortex of monocot root, we observe a few layers of cell below the epidermis which have thick walls due to the deposition of a chemical Suberin. These layers of suberized cells are called exodermises. There are also alternating zone of xylem present in root. The number of xylem patches far exceeds to ten. That is why, they are called polyarch. In monocot root, there is a large sized pith made up of parenchyma tissues.
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