Question

Statement I: Endarch and exarch are the terms often used for describing the position of secondary xylem in the plant body.

Statement II: Exarch condition is the most common feature of the root system.

In the light of the above statements, choose the correct answer from the options given below:

विकल्प

• Both Statement I and Statement II are false.

• Statement I is correct but Statement II is false.

• Statement I is incorrect but Statement II is true.

• Both Statement I and Statement II are true.

Answer 1

Statement I is incorrect but Statement II is true.

Explanation:

Endarch refers to the arrangement in which the protoxylem is oriented toward the inner side, while the metaxylem lies on the outside. In contrast, exarch refers to the arrangement where the protoxylem is directed toward the outer side and the metaxylem is positioned inside. These patterns belong to primary xylem, not secondary xylem; therefore, the first statement is incorrect.

According to Statement II, the exarch condition is most commonly seen in roots. In this arrangement, the metaxylem is located near the center of the root, whereas the protoxylem lies toward the periphery.