Kingdom Plantae 2 Flashcards

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
What is gemmae
green, multicellular, asexual buds, which develop in small receptacles called **Gemma cups** located on thalli
26
Which structure in liverwort germinate to form new individual
Gemmae
27
Male & female sex organ are produced in liverwort on
Same or different Thalii
28
Sporophyte in liverwort is differentiated into
Foot seta capsule
29
Predominant stage of life cycle of mosses is
Gametophyte
30
First stage in mosses life cycle
Protonema
31
Protonema stage in mosses is
Directly develops from a spore
32
Second stage in life cycle of mosses
Leafy stage
33
Second leafy stage in mosses
Develops from the secondary protonema as a lateral bud
34
Mosses remain attached to the soil through the help of multicellular branched
Rhizoids
35
Which stage of bryophytes bear sex organ
Mosses
36
Vegetative reproduction in mosses occurs in which stage
Second protonema
37
Vegetative reproduction in mosses occurs by
Fragmentation & budding
38
Where are the sex organs produced in mosses
At the apex of the leafy shoots
39
In mosses, after fertilisation zygote develops into
A sporophyte consisting of a foot seta and capsule
40
Which part in the mosses contains spores
Capsule
41
Spores are formed after which processs
Meiosis
42
Funaria is an example of
Mosses(Bryophyte)
43
Polytrichum is an example of
Mosses(Bryophyte)
44
Sphagnum is an example of
Mosses(Bryophyte)
45
Which class in Kingdom Plantae acts as soil binders
Pteridophytes
46
Which class in Kingdom Plantae is the first class to have vascular tissues xylem & phloem
Pteridophytes
47
The main plant body in pteridophytes
Sporophyte
48
Sporophyte in pteridophytes is differentiated into
True root,stem,leaves
49
Small leaves in pteridophytes are called
Microphylls
50
Eg of microphylls
Selaginella
51
Pteridophytes with larger leaves
Macrophylls
52
Examples of macrophylls
Ferns
53
Leaf like appendages in pteridophytes
Sporophylls
54
Sporophyte bear sporangia subtended(supported) by
Sporophylls
55
Selaginella and Equisetum form distinct compact structure called
Strobili/cone
56
Spores germinate to give rise to
Prothallus
57
Prothallus is
Thalloid gametophytes Photosynthetic Free living Multicellular Small Inconspicuous
58
Male sex organ in pteridophytes
Antheridia
59
Female sex organ in pteridophytes
Archegonia
60
Pteridophytes require _____ for antherozoid transfer
Water
61
Zygote in pteridophytes produce
Sporophyte
62
Pteridophytes with similar spores
Homosporous
63
Pteridophytes with dissimilar spores
Heterospores
64
Examples of heterosporous
Selaginella Salvinia
65
Megaspore germinate to
Female gametophyte
66
Microspore germinate to
Male gametophyte
67
Development of zygote into young embryos takes place in
Female gametophyte
68
Zygote development into embryo is the precursor of
Seed habit
69
Classification of pteridophytes
→Psilosida e.g. Psilotum → Lycopsida e.g.Selaginella, Lycopodium **Pteridophyte** →Sphenopsida e.g. Equisetum →Pteropsida e.g. Dryopteris, Pteris, Adiantum
70
The tallest tree species
Redwood tree(Sequoia)
71
Gymnosperms generally have which kind of root?
Tap root
72
Pinus roots have fungal association in the form of
Mycorrhiza
73
Cycas have small specialised roots called
Coralloid roots
74
Coralloid roots are associated with
N2 fixing cyanobacteria
75
Gymnosperms w\ unbranched stems
Cycas
76
Gymnosperms w\ branched stem
Pinus Cedrus
77
In which gymnospermic plant pinnate leaves persist for a few years
Cycas
78
Leaves in _____ are well adapted to withstand extremes of temperature, humidity and wind
Gymnosperms
79
Adaptation of gymnospermic leaves to reduce water loss
Thick cuticle Sunken stomata
80
Adaptation of conifer to reduce surface area
Needle like leaves