1.1o root a root is a plant structure that obtains food and water from the soil, stores energy, and provides support for the plant. Most roots grow underground. 1.11 root cap a structure at the ends (tips) of the roots. It covers and protects the apicalmeristem (the actively growing region) of the root.
1.12 stem (also called the axis) is the main support of the piant.
1.13 tap root the main root of some plants; the tap root extends straight down under the plant.
1.14 terminal bud -a bud tocated at the apex (tip) of the stem. Terminal buds have special tissue, called apical meristem, consisting of cells that can divide indefinitely.