10
Question
In which of the following order, an exarch xylem develops?
In which of the following order, an exarch xylem develops?
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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.
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.
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