Biology - Quiz 37 (12.2) Roots, Stems, Leaves Flashcards
(10 cards)
1
Q
abscission layer
A
cells that form at the base of a petiole to sever a leaf from its branch
2
Q
cuticle
A
the waxy protective layer of a leaf
3
Q
heartwood
A
inactive, dead, and clogged wood
4
Q
lenticel
A
allows air to enter the stem
5
Q
pith
A
the central core of a young, woody stem
6
Q
shade leaf
A
a leaf near the bottom of a tree
7
Q
terminal bud
A
allows a stem to grow in length
8
Q
(s.a.) large roots that go deep into the ground and often have secondary roots branching off the main root are called these
A
taproots
9
Q
(s.a.) roots that grow from a plant’s stem, branches, or leaves are these roots
A
adventitious
10
Q
(s.a.) the rough, outer covering of a tree
A
bark
