Question

A concentric amphivasal vascular bundle is one in which ?

• A. Centrally located phloem is surrounded by xylem
• B. Centrally located xylem is surrounded by xylem
• C. Xylem is flanked by phloem on the interior and the exterior sides only
• D. Phloem is flanked by xylem on the interior and the exterior sides only

Answer 1

The correct option is A Centrally located phloem is surrounded by xylem

Amphivasal vascular bundle: one in which the phloem is surrounded by xylem. Although collateral bundles are most common in seed plants, a number of monocot species have amphivasal bundles instead or have amphicribral ones (in which phloem surrounds xylem).
So, the correct answer is "Centrally located phloem is surrounded by xylem".