Question

Vascular bundles in a dicot leaf are

• A. Conjoint, collateral and open
• B. Conjoint, collateral and closed
• C. Collateral and open
• D. Collateral and closed

Answer 1

The correct option is B Conjoint, collateral and closed

• Vascular bundles are present within the mesophyll tissue. They represent the midrib and veins of a leaf. Each vascular bundle consists of xylem and phloem complex tissues surrounded by bundle sheath.
• In a dicot leaf, as xylem and phloem are present on the same radius, the vascular bundle is described as conjoint and collateral. The vascular bundle is described as closed as there is no cambium present between xylem and phloem.
• Vascular bundles help in the transport of water, minerals, and food in the leaf. Vascular bundles also provide strength to the leaf.