plant main parts are
shoot and root
shoot
has leaves
chlorophyll
flowers
nodes
internodes
nodes
leaf attachment site
internodes
space between nodes
root
anchors the plant
absorbs water and Nutri
storage
has root hair
Organizational Heirarchy
Cells -> Tissues - > Organs – Organ systems - > Organism
plant cell type
paranchyma
collenchyma
sclerenchyma
paranchyma
least specialized
one thin cell wall
does most of the metabolism
collenchyma
one rigid cell wall
can elongate.
sclerenchyma
2nd cell wall made of ligin
dead but supports
mature ares
Plant Tissue Systems: are
Dermal, Ground, Vascular
dermal tissue system
makes epidermis and covers all
protection
waxy covering - cuticle
has cork
dead
Periderm
akes place of epidermis in secondary growth
xylem - vascular tissue system
dead when mature
moves water
tracheids
-longer than vessel element & has no perforation plat
vessel element
shorter than above-mentioned; has openings or perforations at both ends to form a long, continuous tub
phylum - vascular tissue system
moves sugar
sieve tube cell
lost nucleus
companion cell
controls sieve cell for daily operations
ground tissue system
Located between vascular and dermal tissues
Does
photosynthesis, storage and supports
determinate growth
genes code for certain max and will not grow higher than that
indeterminate growth
continue to grow as long as the plant is alive
life cycle in flowering plant
annual
biennials
perennials
annual
goes from seed to flowering to death in one year
biennial
seed and vegetative growth in 1st year then flower and fruit in 2nd year
perennials
live for many years only die for disease and injury