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Ch. 1 Lesson 2Why do plants need roots &
stems?
After watching the video, name 1 purpose of roots.
roots
hold plant
in ground
tubes take in water & minerals
storefood
taproot• large root that grows deep in the ground
• stores food• examples:
Grasses do not have a taproot.
What plant in the video has a taproot?
Plant Parts [01:24]
stems
move waterfrom roots to leaves
carry foodfrom
leaves toroots
store food
Parts of some stems
grow underground.
Some stems have thorns & stinging
hairs to keep hungry
animals from eating them.
Some stems are adapted to hold water in a desert environment to keep the plant from drying out.
A cactus has stems with a thick, waxy covering.
stolonsthin
stems that grow along the ground
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