Dicots · Botany

In Dicot roots, the xylem is typically described as being:

  1. Endarch (protoxylem inward)
  2. Centrarch (protoxylem central)
  3. Mesarch (protoxylem surrounded)
  4. Exarch (protoxylem outward)
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Correct answer: Exarch (protoxylem outward)

In roots, the protoxylem is located toward the periphery and the metaxylem toward the center, which is the exarch condition. This is a characteristic feature of vascular arrangement in all roots, including dicots.

Difficulty: Medium Question 10 of 20

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