Question

Vascular bundles of a root are

• A. Radial
• B. Concentric
• C. Collateral
• D. Bicollateral

Answer 1

The correct option is A Radial

Radial vascular bundle have xylem and phloem tissues occur in separate groups on alternate radial positions. This is seen in roots of both monocots and dicots.

Collateral vascular bundles are very common type and seen in stems of dicotyledons except the members of Cucurbitaceae and some members of Convolvulaceae.

Bicollateral vascular bundles are present in stems of plants of family Solanaceae and Cucurbitaceae etc.

Concentric vascular bundles are present in monocot and pteridophytes stems and absent in roots. Thus, option A is correct.