Question

In the diagram of T.S. of Stele of Dicot Root, the different parts have been indicated by alphabets; choose the answer in which these alphabets correctly match with the parts they indicate:

• A. A = Pericycle; B = Conjunctive tissue; C = Metaxylem; D = Protoxylem; E = Phloem; F = Pith
• B. A = Endodermis; B = Conjunctive tissue; C = Protoxylem; D = Metaxylem; E = Phloem; F = Pith
• C. A = Endodermis; B = Conjunctive tissue; C = Metaxylem; D = Protoxylem; E = Phloem; F = Pith
• D. A = Endodermis; B = Pith; C = Protoxylem; D = Metaxylem; E = Phloem; F = Conjunctive tissue

Answer 1

Answer: (B)

A = Endodermis; B = Conjunctive tissue; C = Protoxylem; D = Metaxylem; E = Phloem; F = Pith

Answer 2

The correct answer is: A = Endodermis; B = Conjunctive tissue; C = Protoxylem; D = Metaxylem; E = Phloem; F = Pith

In the T.S. of stele of dicot plants, the xylem and phloem are arranged in an X-shape. The parenchyma tissue present between xylem and phloem is called conjunctive tissue.

• Endodermis - These are cells seen in the T.S. of stele of a dicot root without any intercellular spaces.
• Conjunctive Tissue - It separates xylem from phloem.
• Protoxylem - In dicot plants, it is present away from the center.
• Metaxylem - It is situated towards the center.
• Phloem - In dicot roots, xylem and phloem are arranged radially i.e. they are present in different radii.
• Pith - At the center of the dicot roots, a small pith can be seen.