Stem and Transport in Vascular Plants Flashcards
Stems of some species are modified for _____reproduction
asexual
Buds
undeveloped embryonic shoots
Terminal bud
located at the tip of a stem
Axillary bud (lateral bud)
located in leaf axils
During the winter the terminal bud protects.
k
Each spring, when the bud resumes growth, bud scale falls off leaving______.
bud scale scars
Node
area on stem where leaf is attached
internode
region of stem between two nodes
Leaf Scar
where each leaf was attached to a stem
Bundle Scars
area within a leaf scar where vascular tissue extended from stem to leaf
Lenticels
sites of loosely arranged cells that allow oxygen to diffuse into interior of woody stem
An inner cylinder of ground tissue(_____) may contain parenchyma for photosynthesis, and collenchyma and sclerenchyma for strength and structural support.
cortex
Some stems have a single layer of ____ between xylem and pholeom.
vascular cambium cells
In some herbaceous eudicot stems, phloem contains a cluster of fibers toward the outside of the vascular bundle that helps____ the stem
strengthens
Pith
ground tissue that functions primarily in storage in the center of the stem