Structure and Purpose

Question 1

Sapwood

Answer 1

The new wood under the Cambium layer is called the sapwood, which is light in colour than heartwood; it works as a pipe for the water to move up the tree.

Question 2

Heartwood

Answer 2

The heartwood is actually made of dead cells but it provides the needed strength to support the tree.

Question 3

Earlywood

Answer 3

The earlywood is made up of thin walled cells and they deliver water and needed nutrients to the entire body, which keeps the tree growing.

Question 4

Latewood

Answer 4

The latewood have more strong thickly walled cells than the earlywood because it is exposed and influenced by cold or dry temperatures.

Question 5

Cambium Layer

Answer 5

Cambium layer is a thin layer that provides new cells, which later becomes xylem, phloem and cambium. It is the main source, which makes the tree, including trunk, branches and roots, grow larger in diameter.

Question 6

Growth Ring

Answer 6

The growth rings mark the yearly growth of the tree, and therefore are used to find its age by counting its rings.

Question 7

Pith

Answer 7

In the centre of a tree is the pith, it is quite soft and mushy, and this part is the oldest part of the tree and the core.

Question 8

Xylem

Answer 8

Most plants have xylem, which carries water and mineral salts passing from the roots to the leaves.

Question 9

Phloem

Answer 9

This is where the food for the tree travels through to send to the rest of the tree.

Question 10

Bark

Answer 10

Bark covers the tree except for the leaves, it works like an armour of protection, from many things like insects, disease, storms, extreme temperatures and fire.