Functions of PlantsRoots 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.