Animasi dan bahan ajar Biologi SMA AKARTUMBUHAN

• External Structure of the Plant – Parts of
the plant on the outside.
• The Root
 Types of Root Systems
 Functions of the Root System
 Specialized Root Systems

AXILLARY
BUD

TERMINAL BUD
FLOWER

FRUIT
NODE
SHOOT
SYSTEM
NODE
INTERNODE
STEM

MAIN ROOT

NODE
LEAF

LATERAL
OR SIDE
ROOT

ROOT
SYSTEM

The Shoot System is
found

ABOVE
ground and the Root System
is found

BELOW or UNDER

ground.

Looks like a
tangled mass
of roots

All Grasses

Examples of plants
With this root
system are
 Banana
 Coconut
 Rice
 Corn
 Sugar Cane

Have a large main
central root
Have many branching

roots
Go deep in the soil
Examples of plants :
 Large trees e.g.
mango, avocado
 Shrubs e.g. tomato,
peppers

Plant attaches itself to
tree branch or
telephone wire
Roots hang down in
mid-air and absorb
water from rainfall
Examples :
Wild Pine
Some Orchids

STILT
ROOTS

e.g.
Mangrove

PROP
ROOTS
e.g.
Corn

ADVENTITIOUS Roots Grow from unusual places on plants such as
- Stems, leaves and even fruits

Roots :
- anchor plants firmly in the ground
- absorb water and minerals
from the soil
- of some plants,
can store starch
- of some plants can
be used to grow
a new plant