In which of the following order, an exarch xylem develops?
A
Centripetal
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
Centrifugal
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
Both centripetal and centrifugal
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
Irregular
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution
The correct option is A Centripetal The term 'exarch' is used when there is more than one strand of primary xylem in a stem or root and the xylem develops from the outside inwards towards the center, i.e., centripetally. The metaxylem is thus closest to the center of the stem or root and the protoxylem closest to the periphery. The roots of vascular plants are normally considered to have exarch development.