|
Plant Part |
structure and definitions |
function/ examples |
use |
|
root |
contains xylem and phloem; epidermis, parenchyma, collenchyma, and sclerenchyma. apical meristem located at the tip root cap protects ends root hairs increase surface area tap root: one main root with small roots extending out (ex: carrot) fibrous root: all roots approximately the same diameter |
absorbs nutrients and water; anchors plant; stores food; conducts materials to the stem. |
food |
|
stem |
contains xylem and phloem; epidermis, parenchyma, collenchyma, and sclerenchyma. apical meristem located at the tip stolon: horizontal underground stem that extends to spread plants. |
supports leaves, flowers; transports materials between the roots and leaves; storage; photosynthesis; underground storage (potato tubers) |
wood (an accumulation of xylem); food |
|
leaf |
contains xylem, phloem; epidermis; waxy cuticle; parenchyma, collenchyma, sclerenchyma; palisade and spongy mesophyll; stomata (openings in the underside of the leaf used in gas exchange) |
photosynthesis food storage (onions) |
food; spices; oils; waxes; fibers; drugs; insecticides |
|
flower |
four whorls: calyx made of sepals; used for protection. corolla made of petals; attracts pollinators. androecium made of stamens (anther and filament); produces pollen grains. gynoecium made of pistil (stigma, style, and ovary); produces egg. |
functions in sexual reproduction of angiosperms |
decoration; food |
|
fruit |
ripened ovary or receptacle endocarp, mesocarp, and exocarp |
protects seed; disperses seed |
food |
|
seed |
cotyledon (embryonic seed leaf): epicotyl; hypocotyl; radicle; seed coat |
protects and feeds plant embryo |
food |
|
cone |
scales and seeds |
reproductive organ of conifers |
food; decoration |
|
parenchyma |
basic unspecialized plant tissue |
stores food |
food (apples made of mostly parenchyma tissue) |
|
collenchyma |
living tissue with thick cell walls |
provides flexible support in young plants, leaves |
food (celery is primarily collenchyma tissue) |
|
sclerenchyma |
tissue with thickened walls; dead at maturity |
rigid support |
fibers; rope; jute gives pears gritty texture |
|
non-vascular plants |
contain no vessels spore-bearing plants |
examples: moss, liverworts. need water to reproduce. |
ground cover |
|
ferns |
vascular spore bearing plants frond: leaf fiddlehead: new uncurled leaf rhizome: horizontal underground stem |
need water to reproduce. |
ornamental |
|
gymnosperms |
needle or scale-like leaves pollen cone: male ovate cone: female gymnosperm: naked seed |
examples: conifers (pine, spruce, fir); juniper, arbor vitae |
food; building materials (soft woods missing fibers and vessel elements) |
|
monocots |
angiosperm with one cotyledon parallel leaf venation flower parts in multiples of threes vascular bundles are scattered no vascular cambium fibrous root system do not produce woody tissues |
examples: iris, lily, daffodil, corn, grass |
food; major grains |
|
dicots |
angiosperm with two cotyledons net venation in leaves flower parts in fours or fives vascular bundles in rings vascular cambium present tap root system may produce wood and bark |
examples: rose, trees, cucumber |
building materials (hardwoods contain tracheids and vessel elements); food |