Transcript Functions of Plants Roots, Stem, and Leaves

Functions of Plants
Roots
A92-A94
Vascular Plants
• Vascular plants have
tubes.
• These tubes can be
found in roots, stems,
and leaves.
• The tubes form a
network to carry water
and nutrients
throughout the plant.
Function of Roots
• Plant roots form an anchor for the plant –
preventing them from falling over in high
winds.
• Most roots spread as far as the plant is
tall.
• Roots take in water and nutrients through
the soil using root hairs.
Function of Roots
• Different types of
roots are adapted to
different
environments.
– Desert plants have
roots which spread far
from the plant but stay
near the surface.
– These roots are able
to take in large
amounts of water.
Function of Roots
• Forest trees have
deep roots because
there is more water in
the soil.
Function of Roots
• In a tropical
rainforest,
some roots
attach
themselves to
trees and take
in water directly
from the moist
air.
Common Parts
• Types of Roots
– Fibrous roots resemble tree
branches
– Taproot – a single,
thick root, usually
deep within the ground
Common Parts
• Types of Roots
– Prop roots – begin
above the ground,
help plants grow in
wet, loose soil
Storage Roots
• Storage roots,
sometimes called tubers,
store extra food and
water to help them
survive changes in their
environments.
– Examples: beets, carrots,
sweet potatoes, and
turnips.
– Most have a sweet taste.