Question

Collateral open vascular bundles and eustele occur in

• A. Monocot stem
• B. Dicot stem
• C. Monocot root
• D. Dicot root

Answer 1

Answer: (B)

Dicot stem

A.Monocot stem - Atactostele, collateral, conjoint, closed vascular bundles with endarch xylem is present.

B.Dicot stem - Eustele, Collateral, conjoint, open, vascular bundles with endarch xylem is present.

C.Monocot root - Polyarch stele, radial vascular bundles, with exarch xylem are present.

D.Dicot root - diarch to tetrach stele, radial vascular bundles with exarch xylem are present.

So, the correct option is 'Dicot stem'.