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19 Cards in this Set

  • Front
  • Back
divisions of a plant
root system
shoot system
seed structure
no endosperm
has 2 plumule, seed coat, and epicotyl for root formation
seed coat
outermost part of seed
protection
cotyledon
3n endospore
nutrients contained within for the "embryo"
embryo parts and uses
epicotyl becomes shoot system
radicle becomes the root system
hypocotyl becomes stem
plumule becomes leaves
dermal tissue divisions and uses
dermal tissues- prevent water loss and injury
ground tissue- support and storage
vascular tissue- conduction of fluid, minerals, and sugar
epidermis- divisions and functions
made of trichomes and guard cells
trichomes- retard water loss
guard cell-regulate gas and water exchange in leaves
parenchyma function
part of ground tissue
provide structure
made of a thin primary wall and live at maturity
collenchyma functions
part of ground tissue
structure is unevenly thick primary cell wall
alive at maturity
support of young stems and leaf ribs
schelrenchyma
2 types fibers and sclerids
have a primary and secondary cell wall
parts of vascular system
xylem and phloem
xylem structure and functions
structure - elongated cells
-primary and secondary cell walls with pits
-dead at maturity
phloem structure and functions
sieve tube member
-elongated cells stacked end to end
-primary cell wall with sieve plate
companion cells
-somewhat elongated
-primary cell wall
-regulate activities has a nucleus that control cells
meristematic tissue
apical meristem
vascular cambium cork cambium
apical meristem
cells divide continuously to give rise to other tissues at the tip of the plant
-responsible for primary growth
-grows up and gives rise to leaves flowers and branches
vascular cambium
gives rise to wood
cells that increase girth of tree
cork cambium
also contribute to secondary growth in woody plants
structure of plant tissues
corn seed structure
no seed coat or epicotyl
has 1 plumule and both endosperm and cotyledon