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Neet biology > Kingdom Plantae 2 > Flashcards

Kingdom Plantae 2 Flashcards

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1
Q

Bryophytes mostly grow in

A

Moist shaded hill areas

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2
Q

Amphibians of plant kingdom

A

Bryophytes

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3
Q

Bryophytes are dependent for sexual reproduction on

A

Water

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4
Q

Bryophytes body

A

are thallus like and prostrate or erect
is attached to susbtratum by unicellular or multicellular structures called rhizoids

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5
Q

Which member of plant kingdom possess stem, root, leaf like structure

A

Bryophytes

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6
Q

Main plant body of bryophytes is

A

Haploid

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7
Q

Main plant body of bryophytes produces gamete and is called

A

Gametophyte

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8
Q

Sex organ in bryophyte areb

A

Multicellular

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9
Q

Male sex organ in bryophyte is called

A

antheridium

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10
Q

Antheridium in bryophyte produce

A

Biflagellate antherozoids

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11
Q

Female sex organ in bryophyte is

A

Archegonium

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12
Q

Archegonium in bryophyte produce

A

a single egg

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13
Q

Zygote in bryophyte produce a multicellular body called

A

Sporophyte

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14
Q

The plant body in bryophyte is

A

Not free living

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15
Q

Sporophyte in bryophyte depend on, is attached to and derives nutrition from

A

Gametophyte

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16
Q

Sporophyte to gametophyte

A

Some cells of sporophyte undergo reduction division via meiosis to produce haploid spores which germinate to produce gametophyte

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17
Q

Uses of bryophytes mosses

A

Provide food to herbaceous mammals, birds and animals

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18
Q

Which moss provide peat which is used as fuel

A

Sphagnum

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19
Q

Packing material for trans-shipment of living material as they can hold water

A

Sphagnum

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20
Q

Ecological importance of mosses

A

Along with lichens they’re first organism to colonise rocks

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21
Q

Mosses

A

Mosses also prevent soil erosion

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22
Q

Plant body of liverwort is

A

Thalloid

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23
Q

Marchantia is an example of

A

Liverwort

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24
Q

Asexual reproduction in liverwort takes place by

A
  1. Fragmentation of thalli
  2. Formation of specialised structure called gemmae
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25
Q

What is gemmae

A

green, multicellular, asexual buds, which develop in small receptacles called Gemma cups located on thalli

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26
Q

Which structure in liverwort germinate to form new individual

A

Gemmae

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27
Q

Male & female sex organ are produced in liverwort on

A

Same or different Thalii

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28
Q

Sporophyte in liverwort is differentiated into

A

Foot
seta
capsule

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29
Q

Predominant stage of life cycle of mosses is

A

Gametophyte

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30
Q

First stage in mosses life cycle

A

Protonema

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31
Q

Protonema stage in mosses is

A

Directly develops from a spore

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32
Q

Second stage in life cycle of mosses

A

Leafy stage

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33
Q

Second leafy stage in mosses

A

Develops from the secondary protonema as a lateral bud

34
Q

Mosses remain attached to the soil through the help of multicellular branched

A

Rhizoids

35
Q

Which stage of bryophytes bear sex organ

A

Mosses

36
Q

Vegetative reproduction in mosses occurs in which stage

A

Second protonema

37
Q

Vegetative reproduction in mosses occurs by

A

Fragmentation & budding

38
Q

Where are the sex organs produced in mosses

A

At the apex of the leafy shoots

39
Q

In mosses, after fertilisation zygote develops into

A

A sporophyte consisting of a foot seta and capsule

40
Q

Which part in the mosses contains spores

A

Capsule

41
Q

Spores are formed after which processs

A

Meiosis

42
Q

Funaria is an example of

A

Mosses(Bryophyte)

43
Q

Polytrichum is an example of

A

Mosses(Bryophyte)

44
Q

Sphagnum is an example of

A

Mosses(Bryophyte)

45
Q

Which class in Kingdom Plantae acts as soil binders

A

Pteridophytes

46
Q

Which class in Kingdom Plantae is the first class to have vascular tissues xylem & phloem

A

Pteridophytes

47
Q

The main plant body in pteridophytes

A

Sporophyte

48
Q

Sporophyte in pteridophytes is differentiated into

A

True root,stem,leaves

49
Q

Small leaves in pteridophytes are called

A

Microphylls

50
Q

Eg of microphylls

A

Selaginella

51
Q

Pteridophytes with larger leaves

A

Macrophylls

52
Q

Examples of macrophylls

A

Ferns

53
Q

Leaf like appendages in pteridophytes

A

Sporophylls

54
Q

Sporophyte bear sporangia subtended(supported) by

A

Sporophylls

55
Q

Selaginella and Equisetum form distinct compact structure called

A

Strobili/cone

56
Q

Spores germinate to give rise to

A

Prothallus

57
Q

Prothallus is

A

Thalloid gametophytes
Photosynthetic
Free living
Multicellular
Small
Inconspicuous

58
Q

Male sex organ in pteridophytes

A

Antheridia

59
Q

Female sex organ in pteridophytes

A

Archegonia

60
Q

Pteridophytes require _____ for antherozoid transfer

A

Water

61
Q

Zygote in pteridophytes produce

A

Sporophyte

62
Q

Pteridophytes with similar spores

A

Homosporous

63
Q

Pteridophytes with dissimilar spores

A

Heterospores

64
Q

Examples of heterosporous

A

Selaginella
Salvinia

65
Q

Megaspore germinate to

A

Female gametophyte

66
Q

Microspore germinate to

A

Male gametophyte

67
Q

Development of zygote into young embryos takes place in

A

Female gametophyte

68
Q

Zygote development into embryo is the precursor of

A

Seed habit

69
Q

Classification of pteridophytes

A

→Psilosida e.g. Psilotum
→ Lycopsida e.g.Selaginella, Lycopodium
Pteridophyte
→Sphenopsida e.g. Equisetum
→Pteropsida e.g. Dryopteris, Pteris, Adiantum

70
Q

The tallest tree species

A

Redwood tree(Sequoia)

71
Q

Gymnosperms generally have which kind of root?

A

Tap root

72
Q

Pinus roots have fungal association in the form of

A

Mycorrhiza

73
Q

Cycas have small specialised roots called

A

Coralloid roots

74
Q

Coralloid roots are associated with

A

N2 fixing cyanobacteria

75
Q

Gymnosperms w\ unbranched stems

A

Cycas

76
Q

Gymnosperms w\ branched stem

A

Pinus
Cedrus

77
Q

In which gymnospermic plant pinnate leaves persist for a few years

A

Cycas

78
Q

Leaves in _____ are well adapted to withstand extremes of temperature, humidity and wind

A

Gymnosperms

79
Q

Adaptation of gymnospermic leaves to reduce water loss

A

Thick cuticle
Sunken stomata

80
Q

Adaptation of conifer to reduce surface area

A

Needle like leaves

Neet biology (11 decks)

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