Question

Lagenaria stem has vascular bundles which are

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

Answer 1

The correct option is B Bicollateral

A.Collateral vascular bundle – xylem and phloem present on the same radius. These are found in stems and leaves.

B. Bicollateral vascular bundle – two phloems are present on either side of the xylem and all are present on the same radius. These are found in the stems of Cucurbitaceae and Solanaceae members.

C. Radial vascular bundle – xylem and phloem are present on different radii. These are found in roots

D. Inverted vascular bundles – vascular tissues surround with one another. These are found in ferns.

So, the correct option is B.