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Biology NEET 2023 > XI: Chapter 3- Plant Kingdom > Flashcards

XI: Chapter 3- Plant Kingdom Flashcards

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1
Q

Chromatophores are found in which algae?

A

Red algae and brown algae

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2
Q

Who were the main propounders of natural system of classification?

A

Bentham and Hooker

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3
Q

Who were the main propounders of phylogenetic system of classification?

A

Englr and Prantle, Hutchinson and Takhtajan

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4
Q

What are cormophytes?

A

Plants in which body is differentiatred into roots, stems and leaves.

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5
Q

What are phanerogams?

A

Seeded plants

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6
Q

Who coined the term thallophytes?

A

Endlicher

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7
Q

Thallophytes show what kind of growth?

A

Diffused growth

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8
Q

How are the sex organs of algae different from other plants?

A

Unicellular sex organs, sterile jacket is absent

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9
Q

Volvox shows which type of life cycle?

A

Haplontic life cycle

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10
Q

Diplontic life cycle is shown in which alga?

A

Fucus

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11
Q

Haplo-diplontic life cycle is found in which algae?

A

Ectocarpus and kelp

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12
Q

What is the shape of chloroplast of chlamydomonas?

A

Cup shaped

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13
Q

Which alga has reticulate chloroplast?

A

Oodogonium

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14
Q

Which alga has girdle shaped chloroplast?

A

Ulothrix

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15
Q

Which alga has stellate chloroplast?

A

Zygonema

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16
Q

What is present in the centre of pyrenoid?

A

Protein

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17
Q

Stigma is present in which stage of algae?

A

Reproductive stage

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18
Q

Which type of flagella is completely smooth?

A

Acronematic/whiplash

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19
Q

What are the projection on pentonematic/tinsel flagella called?

A

Flimmers/mastigonemes

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20
Q

Sporophyte is not formed in which group of plants?

A

Algae

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21
Q

Red rust of tea is caused by?

A

Cephaluoras viriscence

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22
Q

Why does red sea appear red?

A

Due to the presence of Trichodesmium erithrium

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23
Q

What is the mode of nutrition of gracillaria?

A

Parasitic

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24
Q

Which algae are minimum in nubmer of species?

A

Brown algae

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25
Q

Name a terrestrial red algae.

A

Porphynidium

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26
Q

In which habitat are most green algae found?

A

Freshwater

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27
Q

In which habitat are most brown and red algae found?

A

Marine

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28
Q

What are the photosynthetic pigments found in green algae?

A

Chlorophyll a, chlorophyll b, beta carotene, violaxanthin

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29
Q

What photosynthetic pigments are found in brown algae?

A

chlorophyll-a and chlorophyll-c, β carotene, fucoxanthin

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30
Q

Which photosynthetic pigments are found in red algae?

A

CHlorophyll a, chlorophyll d, phycobillins (phycoerithrin, phycocyanin, allophycocyanin)

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31
Q

Which carbohydrate does floridean starch resemble?

A

Glycogen

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32
Q

Gelatin is present in the cell wall of which algae?

A

Brown algae (outer layer)

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33
Q

What is the flagellation in brown algae?

A

Heterokonte flagellation

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34
Q

What is the flagellation in green algae?

A

Isokonte flagellation

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35
Q

What type of syngamy is present in red algae?

A

Oogamy

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36
Q

Gametes are biflagellate in which algae?

A

Brown algae

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37
Q

Iodine is obtained from which algae?

A

Laminaria and fucus (brown algae)

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38
Q

Bromine is obtained from which algae?

A

Polysiphonia (red algae)

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39
Q

Name an aquatic bryophyte.

A

Riccia

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40
Q

Which is the largest bryophyte?

A

Dawsonia

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41
Q

Which is the smallest bryophyte?

A

Zoopsis

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42
Q

Are gemmae multicellular or unicellular?

A

Multicellular

43
Q

Peristomium teeth are present in

A

Mosses

44
Q

Elators are present in

A

Bryophytes

45
Q

Cap cells in bryophytes are present in

A

Antheridium

46
Q

Cover cells in bryophytes are present in

A

Archegonium

47
Q

How many neck canal calls are found in archegonium of bryophyte?

A

6 to 10

48
Q

How many flagella do the antherozoids of bryophytes have?

A

2

49
Q

What is the shape of the antheridium of bryophyte?

A

Club-shaped

50
Q

What is the shape of the archegonium of the bryophytes?

A

Flask-shaped

51
Q

In which part of the archegonium of bryophyte is the egg cell present?

A

Venter canal cell

52
Q

Which is the first cell of the sporophytic generation of the bryophytes?

A

Zygote

53
Q

What is the process in which bryophytes form dense mates over the soil surface and conserve the moisture of the soil called?

A

Mulching

54
Q

Which moss is used to make antibiotic?

A

Sphagnum

55
Q

In pteridophytes the plant body is differentiated into true roots, leaves and stems. True or false?

A

True

56
Q

Which organisms are know as the reptiles of plant kingdom?

A

Pteridophyta

57
Q

Which plants are regarded as the first true plants?

A

Pteridophytes

58
Q

Selaginella belongs to the class

A

Lycopsida

59
Q

Adiantum and Marsiela belong to the class

A

Pteropsida

60
Q

Azolla belongs to the class

A

Pteropsida

61
Q

Azolla and salvinia are found in which habitat?

A

Aquatic

62
Q

Selaginella and equisetum and found in which habitat?

A

Xerophytic

63
Q

Ferns have which type of leaves?

A

Macrophylls

64
Q

Selaginella has which type of leaves?

A

Microphylls

65
Q

Do macrophylls have veins?

A

yes

66
Q

Do microphylls have veins?

A

No

67
Q

What are ramenta?

A

Thin hair found on the surface of fronds of pteridophya

68
Q

What are the vegetative leaves of pteridophytes called?

A

Cataphylls

69
Q

Sporangium is borne on the tips of

A

Sporophylls

70
Q

Highly condensed cones of pteridophytes are actually

A

Sporophylls

71
Q

Which pteridophyte is a tree?

A

Cyathea

72
Q

What is the gametophyte of pteridophyte called?

A

Prothallus

73
Q

What are the two requirements of seed habit?

A

Heterospory and retainment of female gametophyte on the sporophyte

74
Q

What type of sporophyte is found in azolla?

A

Heterosporous

75
Q

Which represents the first cellof gametophytic generation?

A

Spore

76
Q

Quill worts is the other name for

A

Isoetes

77
Q

Which pteridophyte is known as little club moss?

A

Selaginella

78
Q

Which is the tallest pteridophyte?

A

Alsophile

79
Q

Who coined the term Ptheridophyta?

A

Ernst Haeckel

80
Q

Who coined the term gymnosperm?

A

Theophrastus

81
Q

Which fungi is found in the mycorrhiza of Pinus?

A

Boletus

82
Q

Stem is unbranched in which gymnosperm?

A

Cycas

83
Q

Is cycas monoecious or dioecious?

A

Dioecious

84
Q

What type of leaves (simple, pinnate, palmate) are found in cycas?

A

Pinnate

85
Q

Small, scaly and brown leaves are present in which gymnosperm?

A

Ephedra

86
Q

Which plant has the largest fan shaped leaves?

A

Gingko biloba

87
Q

Which plant has the largest ovule, male gamete and egg?

A

Cycas thouarsii

88
Q

What is the ploidy of endosperm of gymnosperms?

A

Haploid

89
Q

How many tegments does the ovule of gymnosperm has?

A

1

90
Q

Which plant is used to make sago?

A

Cycas revoluta

91
Q

Tallest angiosperm is

A

Eucalyptus

92
Q

Tallest flower is

A

Amorphophyllous

93
Q

Which algae has flagellated gametes that are similar in size?

A

Ulothrix

94
Q

Which alga has non flagellated gametes that are similar in size?

A

Spirogyra

95
Q

Anisogamous reproduction is found in which alga?

A

Udorina

96
Q

What is the outer layer of cell wall in green algae made of?

A

Pectin

97
Q

What is the leaf like organ found in brown algae called?

A

Frond

98
Q

How are the leaf-like appendages arranged in bryophytes?

A

Leaf like appendages are arranged in two rows in stem like surface.

99
Q

What does the leafy stage of mosses develop from?

A

It develops from the secondary protonema as a lateral bud.

100
Q

What is the difference between the rhizoids of mosses and liverworts?

A

The rhizoids of liverworts are unicellular, but the rhizoids of mosses are multicellular only.

101
Q

Which stage of mosses contains sex organs?

A

Leafy stage

102
Q

In dicots, floral whorl members are arranged in groups of

A

Four or five (tertamerous or pentamerous)

103
Q

In monocots, the floral whorl members are arranged in groups of

A

Three (trimerous)

104
Q

Which organisms are included in ‘amniotes’?

A

Reptiles, aves and mammals

Biology NEET 2023 (39 decks)

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