10/15 Angiosperm Flashcards
Antho
Greek for flower
4 modified leaves are
Sepals, petals, stamen, carpel
another name for sepals
calyx
another name for petals
corolla
stamen
anther with pollen grain
carpel
ovary with ovules
angiosperm plant is a sporophyte with…
gametophytes in its flowers
angiosperms have a seed that is covered by?
a fruit
double fertilization
pollen tube discharges two sperms into the female gametophyte
sperm+egg —>
embryo n
sperm+ two nuclei —>
endosperm n
Ovule develops into what?
seed
Ovary develops into what?
fruit
Fruit is a what?
ripen ovary
what is the benefit of having a flower?
A
Function of fruit
protects the seed and aids in dispersal.
what is the benefit for improving seed dispersal?
A
plants w/o showy flowers and no nectar, are most likely pollinated by?
A
how do they improve their chances of fertilization?
A
why do not all flowers have colorful petals or sweet fragrances?
A
fact
90% of angiosperms are pollinated by animals
why pollinated by animals?
A
What does the animal get in return?
A
How does the animal know that there is a reward?
A
Flower diversity is caused by?
pollination (partly responsible)
bee pollinated flowers have..?
nectar guides that reflect UV light
birds are attracted to…?
bright red and orange but not particular scent
beetles are drawn to….?
fruity odors but are indifferent to color
night pollinated flowers are..?
larger, light colored and highly scented, some produce the smell of rotting flesh attracting carrion flies and beetles
what can you predict you might find in a flowering plant?
A
what are the two main groups of angiosperms?
monocots (one seed leaf) and dicots (two seed leaves)
fact
humans welfare depends greatly on seed plants
the major difference between angiosperms and gymnosperms is the..?
A
both gymnosperms and angiosperms have?
A
the male gametophytes of flowering plants are also referred to as
pollen grains
