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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