Exploring the Parts of a Tree

Questions and Answers

To provide support to the trunk and make it strong (correct)

To produce food for the tree through photosynthesis

To absorb water and nutrients from the soil

To transport water and nutrients from the roots to the leaves

To store extra food and provide support to the tree (correct)

To produce flowers and fruits

To absorb sunlight for photosynthesis

To transport water and nutrients from the roots to the leaves

Xylem

Heartwood

Cambium

Phloem (correct)

Heartwood Signup and view all the answers

To make food for the tree through photosynthesis Signup and view all the answers

Cambium Signup and view all the answers

To carry sugary food to the leaves and other parts of the tree Signup and view all the answers

Heartwood Signup and view all the answers

To carry water and nutrients from the roots to the crown Signup and view all the answers

Cambium Signup and view all the answers

Study Notes

A tree has three main parts: the crown, trunk, and roots.
The crown includes leaves and branches that work like a food factory, collecting sunlight and carbon dioxide to produce food for the tree.
The crown also provides oxygen and protects the ground from heavy rain and hot sun.

The trunk holds up the crown, protects the inner parts, and transports essential materials to different parts of the tree.
The trunk has five layers:
- Bark: the hard, outer layer that protects the trunk from bad weather and animals.
- Phloem: a sugar pipeline that carries sugary food to the leaves.
- Cambium: the growth center that makes new cells for the trunk and branches to grow thicker.
- Xylem: a pipeline that carries water and nutrients from the roots to the crown.
- Heartwood: the center of the trunk, made up of old xylem cells that provide support and strength.

When a tree's trunk is cut, its different layers look like rings, with the heartwood at the center.
Scientists can use tree rings to determine the age of a tree.

Leaves are the site for photosynthesis, the process of using sunlight, carbon dioxide, and water to create sugar.
The vascular tissue responsible for sugar distribution to the leaves is called phloem.
The dark, non-living part of the tree located at its center is called heartwood.
The bark is the protective layer of the tree, found outside the cambium.
The xylem transports water and nutrients from the roots to the aerial parts of the tree.