Question

In open collateral vascular bundle

• A. Xylem and phloem are separated by cambium
• B. Xylem and phloem lie side by side
• C. Cambium occurs on the outside of bundle
• D. Cambium does not occur in the bundle

Answer 1

The correct option is A Xylem and phloem are separated by cambium

Collateral vascular bundles are very common type and seen in stems of dicotyledons except the members of Cucurbitaceae. Cambium may be present or absent in between xylem and phloem patches making the vascular bundle open or closed respectively. If cambium is present in between xylem and phloem, it is called as open collateral bundles. They are present in dicots.