Plants (DOLT) Flashcards
role
producers
autotrophs or heterotrophs
mostly autotrophs
heterotrphic plants
grow in nutrient poor soil
examples: venus fly trap and pitcher plant
trap insects with modified leaves
reproduction
sexual and asexual
sexual reproduction
seeds
asexual reproduction
cuttings/pieces of roots, stems, leaves, modified roots (bulbs and tubers)
vascular plants
internal transport system made of xylem and phloem
can grow very tall
2 types
ferns
vascular plants
prehistoric
spores found under fronds/leaves
fiddleheads
gymnosperms
vascular "naked seed" seeds found in cones conifers wood is good for construction
reproduction of gymnosperms
sexual reproduction through seeds
identifying conifers
needles: shape, length, number
cones: shape, siz
Jack pines
pioneer species
first to grow after a fire
angiosperms
vascular
flowering plants
most common type of plant
seeds found in fruit structure
types of angiosperms
- monocots
2. dicots
perennial plants
herbacious plants
live for a long time
stems and leaves die every year
roots don’t die
biennial plants
herbacious plants
live for a short length of time
grow one year, produce the next and die
annual plants
herbacious plants
live for a short length of time
die every year
types of herbacious plants
perennial, biennial, annual
dicots
seeds have two cotyledons (like peanuts) flowers: groups of 4 or 5 roots: tap root, long and thick veins: branch in all directions vascular tissue: ring around stem lifetime: usually more than one year
monocots
seeds contain one cotyledons (like corn kernels) flowers: groups of 3 or multiples of 3 veins: parallel to each other roots: fibrous, spread out vascular tissue: bundles around stem lifetime: one year
non-vascular plans
no internal transport system
must be in contact with water
very short
not very diverse
algae/seaweed
non-vascular aquatic fresh and saltwater green, red, brown contain chloroplasts some have air bladders many uses
uses of algae/seaweed
agar- grows bacteria food- high in vitamins and minerals carrageenan- thickener in dairy products bio fuel- being developed control and clean up polutants
moss
non-vascular terrestrial carpet-like very short pioneer organisms no flowers sexual reproduction through spores
role of moss
break down rock into soul
prevent erosion
