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bio 191 > chapter 30 > Flashcards

chapter 30 Flashcards

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Biology 101 flashcards
1
Q

diploid sporophytes produce…

A

produce spores by meiosis and they grow into haploid gametophytes

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2
Q

gametophytes produce…

A

haploid gametes by mitosis, fertilization creates the next sporophyte

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3
Q

angiosperm life cycle is characterized by…

A

flowers, double fertilization, and fruits

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4
Q

receptacle

A

reproductive shoots of the angiosperm sporophyte attach at the stem

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5
Q

carpel

A

reproductive organ. long style with a stigma on which pollen may land

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6
Q

pistil

A

a single carpel/group of fused carpels

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7
Q

stamen

A

a filament topped by another with pollen sacs that produce pollen

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8
Q

complete flowers…

A

have all four organs

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9
Q

incomplete flowers

A

lack one/more floral organs

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10
Q

perfect flowers have

A

both sexes

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11
Q

imperfect flowers

A

are only male or female

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12
Q

inflorescence

A

clusters of flowers

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13
Q

embryo sac

A

female gametophyte. develops within the ovule

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14
Q

megasporangium undergoes mitosis and produces…

A

megaspore

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15
Q

megaspore…

A

divids producing the female gametophyte

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16
Q

female gametophyte have…

A

seven cells and 8 nuclei

17
Q

pollen grain

A

two called male gametophyte and the spore wall

18
Q

pollen tube

A

produced by pollen grain. down into the ovary and discharges two sperm cells near the embryo sac

19
Q

pollination

A

transfer of pollen from an anther to a stigma

20
Q

wind pollination

A

produce small inconspicuous flowers that lack nectar or scent and release large amount o pollen

21
Q

double fertilization

A

result from the discharge of two sperm from the pollen tube into the embryo sac. one sperm fertilizes the egg, the other combines with the polar nuclei giving rise to the triploid food storing endosperm (3n).

22
Q

ovule develops into…

A

seed

23
Q

ovary develops into…

A

fruit enclosing the seeds

24
Q

cotyledons

A

embryonic leaves

25
Q

spicotyl/hypocotyl

A

embryonic stem

26
Q

radicle

A

embryonic root

27
Q

ovary of the flower: simple

A

from single carpel

28
Q

ovary of the flower: aggregate

A

from a single flower with multiple separate carpels

29
Q

ovary of the flower: multiple

A

from a group of flowers called an inflorescence

30
Q

from ovary of the flower: accessory fruit

A

contains other floral parts in addition to ovaries

31
Q

dispersal by water

A

buoyant fruits like coconut which can survive for long periods at sea

32
Q

dispersed by wind

A

fruits that have adaptations such as parachute or winglike structures

33
Q

dispersal by animal

A

fruits that are edible or adapted to attach to an animals skin/fur

34
Q

vegetative reproduction

A

asexual reproduction

35
Q

fragmentation

A

separation of a parent plant into parts that develop into whole plants

bio 191 (17 decks)

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