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Biology 202- Organism Biology > Chapter 38 > Flashcards

Chapter 38 Flashcards

1
Q

a flowering plant is a __________________

A

diploid sporophyte

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2
Q

-the female sporangium is located within the flower’s _______

A

ovary

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3
Q

a single sporocyte within the sporangium undergoes meiosis to produce _________________ spores

A

4 haploid

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4
Q

three of four spores ______________________ having just one functional spore

A

degenerate

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5
Q

in an embryo sac the spore undergoes mitosis ______ times to grow into an - female gametocyte

A

3 times

8 celled female gametophyte

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6
Q

-two center cells 0f a embryo sac are _________________

A

central cells

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7
Q

three cells at one end are called _________

A

antipodes

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8
Q

two of three cells at the other end are called _____________

A

synergid

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9
Q

third cell of the other end is the ______________

A

egg

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10
Q

angiosperm, female gametophytes do not contain _______________

A

archegonia

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11
Q

the 8 celled female gametophyte is called an _______________

A

embryo sac

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12
Q

the embryo sac developed within the _____________________ which is surrounded by the integument

A

female sporangium

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13
Q

the entire embryo sac, female sporangium, and integument is an ______________ located in the flower’s _______________

A

ovule

ovary

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14
Q

male sporangio are located within a flower’s _____________

A

anthers

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15
Q

male sporocytes within the sporangia undergo _____________ to produce ____________________. all remain viable

A

meiosis

haploid spores

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16
Q

male angiosperm spores undergo ________ just once producing ____________________________

A

mitosis

male gametophytes with only two cells

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17
Q

male gametophyte cells (2)

A
  • one tube cell

- one generative cell

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18
Q

these two celled male gametophytes are ______________

A

pollen grains

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19
Q

during pollination the tube cell elongates to form a ___________________

A

polen tube

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20
Q

the pollen tube extends to the ovule in the ovary where it passes through the integument and sporangium to contact _______________

A

the embryo sac

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21
Q

_________________ undergoes mitosis to produce two sperm cells

A

the generative cell

22
Q

the sperm cells reach the embryo sac after being sent down ________________

A

pollen tube

23
Q

one sperm cell fertilizes the egg, producing ________________

A

diploid zygote

24
Q

the second sperm cell fertilizes the nuclei of ______________________

A

both central cells

25
Q

the fertizaton of both central cells results in ______________

A

a triploid cell called endosperm

26
Q

fertilization why two sperm cells is called _________________ and is unique to angiosperms

A

double fertilization

27
Q

following double fertilization the ___________ becomes a ____________

A

ovule to seed

28
Q

the zygote grows by ____________ producing an embryonic sporophyte

29
Q

the endosperm also grows by __________________

30
Q

a seed coat __________________ surrounds and sportects the embryo and endosperm

A

integument

31
Q

endosperm serves as a source of _________________________________

A

nutrition for develop for the developing embryo

32
Q

in monocots the embryo ____________________________

A

directly consumes the endosperm

33
Q

in edicts the embryos two cotyledons __________

A

consume the endosperm. The embryo then consumes the cotyledons

34
Q

a bean is an example of _____________

35
Q

a been consists of two halves each half is a

A

cotyledon the cotyledons provide nutrients to developing embryo

36
Q

the embryo consists of to regions

A

epicotyl

radicle

37
Q

epicotyl

A

embryonic shoot

38
Q

radicle

A

embryonic root

39
Q

corn is an example of ________________

40
Q

monocots like corn have _____________,

A

one cotyledon

the endosperm rather than cotyledon provide nutrients

41
Q

the following fertilization, the ovary developed into a ___________

42
Q

the fruit surrounds the ____________

fruit functions for _____________

A

seed

seed dispersal

43
Q

fruits are classified as __________ or __________

A

fleshy or dry

44
Q

the embryo ultimately breaks out of the seed and grows into an adult __________________ during _________ process

A

sporophyte

germination

45
Q

during germination the _________ always emerges first

46
Q

plant asexual reproduction (2 types)

A
  • vegatative reproduction

- apomixis

47
Q

vegetative production (3 types)

A
  • stolans
  • thizomes
  • fragentation
48
Q

horizontal aboveground stems

49
Q

horizontal below ground

50
Q

connection of asexual plants

51
Q

plantlets and gemmae in gemma cups

A

fragmentation

52
Q

asexual production of seeds

Biology 202- Organism Biology (30 decks)

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