Parts of root

Question 1

Epidermis

Answer 1

Protective outer layer (1-3 cell layers thick)

Question 2

Cortex

Answer 2

Stores starch; large cells between vascular bundle and epidermis

Question 3

Endodermis

Answer 3

Single layer of smaller cells just inside cortex; cell walls are thickened; controls the entry of water into vascular bundle

Question 4

Pericyle

Answer 4

Have ability to divide and give rise to lateral roots; single layer of cells just inside endodermis

Question 5

Xylem

Answer 5

Conduct water and minerals throughout plant and provide support; large, thick-walled dead cells in center (X-shape)

Question 6

Phloem

Answer 6

Transport organic food throughout plant; small, compact, live cells between “arms” of xylem