Page 100 - Science Class 06

10
10
10

Plants—Form and Function

• Structure of Plants • The Root System • Modifica on of Roots
• The Shoot System • Modifica on of Stems • The Leaf
• The Flower • The Fruit • The Seed

Plants are the beauty of nature. They look THE ROOT SYSTEM
very beau ful and gives us fresh oxygen. The root system is below the ground. This
There are many types of plants on the earth system includes roots, tubers (an enlarged,
including flowering plants and non- fleshy, underground stem with buds capable

flowering plants. These plants differ in their of producing new plants) and rhizomes (a
structure, but the basic structure of these horizontal stem that is usually underground
plants are similar. and roots grow from it).

STRUCTURE OF PLANTS Roots anchor the plant in soil so that it

Plants can be divided into two main doesn’t fall over. Roots are much like straws
parts—root and shoot. The part of the plant through which water and minerals from the
above the ground is called shoot while the soil move upward to the shoot system. Tiny
part under the soil is called the root. Roots root hairs s ck out of the root, helping in

have different parts that carry out some the absorp on. Roots also store extra food
specific func ons and form a system called for future use.
the root system. Similarly, the other parts of Types of Root System
the plant form the shoot system. Root system can be grouped into:

Bud Reproduc ve shoot (flower) v The Tap Root System
Modified leaves (petals)
Leaf Stamens and carpels v The Fibrous Root System
Fruit The Tap Root System
Shoot system
Stem A tap root is a kind of root system that is
Taproot
characterised by the presence of a domi-
Lateral roots Root system
100 Science-6