FINALS Flashcards
new plant arises from vegetative parts
asexual reproduction
new plant arises through reproductive part
sexual reproduction
new plants are developed from a portion of the main plant’s body
vegetative reproduction
in this mode of asexual reproduction, new plants grow from an outgrowth or bud in the plant body
budding
new plants are developed from fragments of the parent plant
fragmentation
seeds are formed and the embryo is developed without the fusion of male and female gametes
apomixis
production of sex gametes, followed by their fusion and the creation of an embryo that is reliant upon the female gametophyte
sexual reproduction
produces haploid spores via meiosis
diploid sporophyte
contains the small male and female haploid plants that produce gametes
gametophyte
results in the production of a diploid zygote
fertilization
after the transfer of pollen grains, the male gamete is transferred down through the style of the pistil to the ovary where the male gamete is fused with the female gamete to form a zygote
zygote formation
after fertilization, a formed zygote is developed into an embryo. the ovary develops into fruit and ovules into seeds
fruit and seed formation
sexual reproduction involves flowers and seeds
angiosperms
flowers with both male and female reproductive organs
perfect flower
flowers that have only male or only female reproductive organs
imperfect flower
reproductive shoots of the angiosperm sporocyte
flowers
single carpel or fused carpel
pistil
have all four floral organs
complete flowers
lack one or more floral organs
incomplete flowers
staminate flowers
stamen
pistillate or carpellate flowers
pistil
the flower can be divided into two equal parts by an imaginary line
bilateral symmetry
sepals, petals, stamens, and carpels raidate out from a center
radial symmetry
ovary is located above the receptacle
superior ovary
located within the receptacle
inferior ovary
in between the receptacle
semi-inferior
cluster of flowers
inflorescences
vary from individual flowers to cluster of flowers
floral distribution
center is an aggregation of incomplete flowers that did not develop
sunflower
presence of staminate and carpellate flowers on the same plant
reproductive variations
bisexual
monoecious
unisex
dioecious
all stamens
androecium
all carpels
gynoecium
all sepals
calyx
all petals
corolla
control by light is due to a pigment called
blue-green pigment that controls various growth responses
phytochrome
Pr
inactive form
Pfr
active form
pollen from a flower’s anther pollinates stigma of the same flower
self-pollination
pollen from anther of one flower pollinates another flower’s stigma
cross pollination
most common insect pollinator
bees
flower traits that attract different pollinators
pollination syndrome