DENDROLOGY

TREE IDENTIFICATION

PARTS OF A TREE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following is an INSIDE layer of the tree? aka The layers of the trunk. (Select all that apply)
A
Cambium
B
Sapwood
C
Heartwood
D
Outer bark
E
Inner bark
Explanation: 

Detailed explanation-1: -E: Heartwood is the central, supporting pillar of the tree. Although dead, it will not decay or lose strength while the outer layers are intact. A composite of hollow, needlelike cellulose fibers bound together by a chemical glue called lignin, it is in many ways as strong as steel.

Detailed explanation-2: -The inner bark, or “phloem”, is pipeline through which food is passed to the rest of the tree.

Detailed explanation-3: -The trunk consists of five main parts: The outer bark, inner bark (phloem), cambium, sapwood (live xylem), and heartwood (dead xylem). From the outside of the tree working in: The first layer is the outer bark; this is the protective outermost layer of the trunk.

There is 1 question to complete.