NEET Biology question
In order to provide increase in girth and prevent rupturing of the outer ground tissues due to the formation of secondary vascular tissues, dicot stems produce a cork cambium or phellogen in the outer cortical cells. The cells of this phellogen divide periclinally to produce phellem or cork on the outer side and secondary cortex or phelloderm on the inner side. Phellem, phellogen and phelloderm collectively constitute
Answer: (C)
Solution
Phellem (cork), phellogen (cork cambium) and phelloderm (secondary cortex) collectively constitute the periderm, the
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