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Anatomy of Flowering Plants — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYAnatomy of Flowering Plants2 Marks
Question
Distinguish between the following:
Exarch and endarch condition of protoxylem.
✓

Answer

Exarch Protoxylem
EndarchProtoxylem
When the protoxylem is present towards the periphery and metaxylem towards centre in vascular bundle as it is found in roots.
If the protoxylem is present towards the centre and metaxylem towards periphery in the vascular bundle as it is found in stem.

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