You are given a fairly old piece of dicot stem and a dicot root. Which of the

You Are Given A Fairly Old Piece Of Dicot Stem Biology QuestionYou Are Given A Fairly Old Piece Of Dicot Stem Biology Question

You are given a fairly old piece of dicot stem and a dicot root. Which of the following anatomical structures will your use to distinguish between the two?

Options

(a) Secondary xylem
(b) econdary phloem
(c) Protoxylem
(d) Cortical cells

Correct Answer:

Protoxylem

Explanation:

Anatomically fairly old dicotyledonous root is distinguished from the discotyledonous 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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