Plants

Types of RootsFibrous Roots Taproot

Roots that are smaller One large root that grows straight down

They grow in many directions It has smaller roots that branch off of it

Examples: grass, marigolds, most trees Examples: Carrots, radishes, turnips

What do roots do for plants? 1. Roots anchor the plants into the ground so they do not blow or wash away. 2. Roots also take in water and minerals from the soil.

Types of StemsGreen Stems Woody Stems

Thin, green, and bend easily Brown, woody, and do not bend easily

Produce their own food Grows thicker and taller each year

Examples: tulips, lilies, petunias Examples: trees, shrubs

What do stems do for plants? 1. Stems support the leaves, flowers, or cones.2. Stems contain tubes that carry food, water, and minerals to all parts of the plant.3. Some stems can store food for the plant.

Blade Vein Stalk/Petiole

Where photosynthesis takes place

Transports water and minerals throughout the leaf

Supports the leaf on the stem of the plant.

Parts of a Leaf

Stalk/Petiole

BladeVein

Vein Patterns

Pinnate Palmate

Broad-Leaved Plants

Simple Compound

A single blade attached to a stalk.

One stalk with several blades attached to it.

Dormancy: The state of much lower activity

Why do trees enter a state of dormancy?– There is less sunlight for photosynthesis– To save energy

Transpiration: The giving off of water vapor by plants (excess water that leaves a plant)