Gr.3..roots and stems

What structures help keep a cactus from losing too much water?

• thick, waxy stems

• deep tap roots

• seeds made in cones

Where in a plant can you find tubes that move nutrients from the roots to the leaves?

• bark

• stem

• leaf

What is the function of roots?

• to take in gases from the air

• to take in water and nutrients from the soil

• to make food for the plant

Roots grow down because of ...................

• Gravity

• Sunlight

• Air

What are two factors that affect how plants grow?

• Seeds and cones

• Leaves and flower

• Gravity and sunlight

The direction of water in a plant is ...............

• up

• down

• right

The direction of food in a plant is ...............

• up

• down

• right

...............is one large root that grow deep into the soil.

• tap root

• fibrous root

• waxy stem

Plant stems come in the same shapes

• True

• False

A nutrient is any material needed by living thing for energy.

• True

• False