Plant Structure, Growth, and Development Flashcards
Chapter 35
root
absorbs water and minerals
stem
organ with nodes and internodes
nodes
where leaves attatchi
internodes
stem segments between nodes
leaf
main photosynthetic organ of most vasc plants
most common plant cell
parenchyma
rarest type of plant cell
collenchyma
plant cells dead at maturity
sclerenchyma and xylem
plant cell alive at maturity
phloem
apical meristems
elongate shoots and root, primary growth
lateral meristems
thickness to woody plants, secondary growth
vascular cambium
layer of secondary xylem (wood) and secondary phloem
cork cambium
replaces epidermis with periderm, thicker and longer
two ways plants increase size
cell number, sell expansion
what determines cell fate
symmetry of cell division
what restricts cell elongation
cellulose microfibrils
two hypotheses of pattern formation in cells
- lineage-based
- position-based
plant cells fate
position-based
animal cell fate
lineage-dependent
Plants pass through developmental phases called….
phase changes