4.2 Flashcards
1
Q
Botanists call wood this
A
Xylem
2
Q
Outer section of a woody stem
A
Bark
3
Q
Innermost layer of bark
A
Phloem
4
Q
New phloem cells are formed by the thin layer this
A
Vascular cambium
5
Q
The strong resilient inner section of a woody stem
A
Wood
6
Q
Long narrow rad shaped cells that often have tapered ends
A
Tracheds
7
Q
Can sometimes be seen with the naked eyes. Tiny pours in a piece of cut wood.
A
Vessels
8
Q
Center of a woody stem in a young plant
A
Pith
9
Q
Older inner wood
A
Heart wood
10
Q
Younger functioning zylem tissue
A
Sapwood
11
Q
Growth in width
A
Secondary growth
12
Q
Layers of zylem
A
Annual growth rings
13
Q
Spring wood and summer wood make this up
A
Grain
