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Anatomy of Flowering Plants question

2009 · Q55
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Anatomy of Flowering Plants question

2009 · Q55

NEETBiologyAnatomy of Flowering PlantsMCQ+4 / −1
Anatomically fairly old dicotyledonous root is distinguished from the dicotyledonous stem by :
  1. A
    Absence of secondary phloem
  2. B
    Presence of cortex
  3. C
    Position of protoxylem
  4. D
    Absence of secondary xylem
View written solutionFree

Correct answer: C

Anatomically fairly old dicotyledonous root is distinguished from the dicotyledonous stem by position of protoxylem. In dicot root the protoxylem is located near the periphery of the vascular cylinder while in dicot stem the protoxylem is located near the centre of vascular bundle i.e. the xylem is endarch.

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