Exam 23: Plant Architecture and Function

In the root system, the vascular tissues are in a ring surrounding the pith.

These tend to form a fibrous root system.

In the root system, the vascular tissues are clustered in the center in the vascular cylinder.

In the stem, the vascular tissues are scattered, surrounded by parenchymal cells.

includes tracheids

cells dead at maturity

lack secondary growth

parallel veins in the leaf, not branching

Economically important cells in hemp used to make rope and clothing

Site of photosynthesis in a leaf and storage in a root

Food transport

Xylem cells found in angiosperms but not gymnosperms

Long narrow xylem cells that overlap at their ends; each end contains small "pits" for water to pass through