Wood Structure Flashcards
1
Q
Older, darker wood in center, ray cells dead.
A
heartwood
2
Q
more recently produced, ray cells alive; vessels may or may not be functional.
A
sapwood
3
Q
what are the 3 functions of wood?
A
transport, structure, storage
4
Q
”” and “” substances accumulate in heartwood
A
tyloses and pheolic
5
Q
what are the two functions of tracheid’s?
A
transport and supporting the tree to stand upright.
6
Q
”” have tracheid’s, the cambium is way more simplistic.
A
conifers
7
Q
”” have vessels and fibers. more complex than conifers
A
angiosperms
8
Q
”” are structural support for the tree, and are in angiosperms.
A
fibers
9
Q
”” extend radially across the stem, which helps in transportation of water and nutrients from the vascular bundles to the tissues alongside them.
A
rays
