Page 102 - Science Class 06
P. 102
Take some seeds of gram and put them in
a piece of co on cloth and keep the cloth
wet. Keep it in an open place where
sunlight and air are available. A er a few
Sugarcane Roots Maize Roots
days, you will observe new roots have
emerged from the gram seeds. Now, find
out the type of the root.
In many places in the world, many
hundred years old banyan trees exist.
Roots of Banyan Tree
They have developed many prop roots
Nodulated Roots which have grown into trees. They have
They consist of small nodule like projec ons. spread in a large area.
These nodules contain Rhizobium bacteria.
These bacteria fix atmospheric nitrogen in
the soil and make nitrogen available for the
plants. The plants having modulated roots 1. Name the two main parts of a plant.
are called leguminous plants. 2. What are secondary roots?
For example, beans, groundnuts, peas, gram, 3. What is root cap?
moong, etc. 4. Name the two types of roots.
Func ons of Roots 5. Give examples of plants having modified
suppor ng roots.
v Roots fix the plants to the soil and give
them firm support. THE SHOOT SYSTEM
v Roots absorb water and mineral salts The shoot system above ground is the most
from the soil that are transported to the obvious part of the plant. It consists of the
stem and leaves. leaves, stems, flowers and fruits. The leaves
and stems are the most common parts of
v Roots bind soil par cles together and
the plant as they make up almost the en re
prevent soil erosion.
exposed por on of the plant.
v Roots of some plants store food in them
Stem
which is used as per requirement.
Stem is the strongest part of the plant that
v Some modified roots give addi onal
bears the branches, leaves, flowers and
support to the plants and act like a
fruits. It also bears the weight of the
pillar.
branches.
102 Science-6
