Plant Reproduction (Ch 26) Flashcards

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1
Q

Asexual reproduction

A

organims variations in phenotype and genotype

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2
Q

Asexual

A

organism suited well to environment to maintaining species

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3
Q

term for female gametophyte

A

embryo sac

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4
Q

term for male gametophyte

A

pollen grain

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5
Q

sporophyte meaning

A

phase of plant life cycle where it produces spores by meiosis

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6
Q

is sporophyte asexual or sexual

A

asexual

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7
Q

is gametophyte sexual or asexual

A

sexual

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8
Q

is gametophyte diploid or haploid

A

haploid

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9
Q

is sporophyte haploid or diploid

A

diploiod

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10
Q

what is gametophyte

A

sexual phase where it produces gametes that undergo alternation of generations

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11
Q

sporophyte location

A

mosses and ferns

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12
Q

archegonia

A

Egg producing gametangia

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13
Q

antheridia

A

Sperm producing

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14
Q

sporophyte depends on gametophyte for

A

nutrients and support

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15
Q

spores develop into what kind of plants after falling to ground

A

independent gametophyte

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16
Q

in seed plants; are gametophyte big or small

A

small

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17
Q

what gets released from sporophyte during pollination

A

male gametophyte

18
Q

where is male gametophyte produced

A

within the flowers of the sporophyte.

19
Q

term for reproductive organ of female (pistil)

A

carpel

20
Q

term for reproductive organ of male

A

stamen

21
Q

2 stages of male gametophyte

A

immature and mature

22
Q

pollination

A

transfer of pollen from anther (male part) to stigma (female part)

23
Q

pollination pollens

A

transfer from one flower to another

24
Q

fertilization takes place when?

A

takes place after pollination is transferred successfully.

25
Q

2 components of embryo sac:

A

egg and polar nuclei

26
Q

know steps of double fertilization

A

refer to gd notes

27
Q

3 parts of seed

A

radicle, hypocotyl, epicotyl

28
Q

Radicle

A

basal portion of embryo
Develop into true root system

29
Q

Hypocotyl

A

middle portion
Develop into transition zone b/w root and stem

30
Q

Epicotyl

A

part attached to cotyledons
Develop into above ground structures of plant (stem, leaves, flowers)

31
Q

when does fruit start to develop

A

after pollination

32
Q

where doe fruit develop from

A

ovary (bottom of flower)

33
Q

fruit function

A

seed dispersal + allow plant to reproduce

34
Q

2 ways fruit gets dispersed

A
  1. juicy and fresh fruit (dispersed by animals feces)
  2. dry fruit (dispersed by different media)
    ex: Dandelion seeds dispersed by wind
35
Q

3 fruit dispersal mechanism

A

water, wind, animal

36
Q

can plants reproduce without seed

A

yes

37
Q

why plants being asexual type is not favorable

A

Doesn’t produce much
Requires external force + time
Does not provide genetic variation
Offspring identical to parent plant

38
Q

4 ways plants can reproduce without seeds

A

Bulbs
Rhizomes
Runners
Tubers

39
Q

swollen tips of underground stems like potatoes (asexual method)

A

tubers

40
Q

horizontally growing stems (strawberries) = asexual method

A

Runners

41
Q

underground stamps (ferns, bamboo) = asexual method

A

Rhizomes

42
Q

short stem, storage leaves (tulips, onion) = asexual method

A

Bulbs