Multiple choice

The pattern of xylem development observed in the roots of vascular plants is _____________________.

  1. mesarch

  2. endarch

  3. exarch

  4. centrarch

  5. polyarch

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

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 roots of vascular plants are normally considered to have exarch development.