Phloem · Botany

In a typical collateral vascular bundle of a stem, where is phloem located relative to xylem?

  1. Toward the center only
  2. Completely surrounding the xylem
  3. Alternating with xylem on separate radii
  4. Toward the outside of the stem
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Correct answer: Toward the outside of the stem

In many collateral vascular bundles, phloem is positioned toward the outer side and xylem toward the inner side. This arrangement is common in many stems.

Difficulty: Medium Question 17 of 20

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