Question

A thick vein in the middle of a leaf is called___.

Answer 1

Vein:

1. Veins are the linear structures which are run through the lamina of leaf.
2. veins carry water and nutrients to the leaves.

Midrib:

1. Midrib is the thickest vein which is found in the middle of the leaf.
2. The main function of midrib is to support the lamina during wind and to keep the leaf in upright position.

Final answer:n A thick vein in the middle of a leaf is called midrib.