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NEET biology > Plant Kingdom > Flashcards

Plant Kingdom Flashcards

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1
Q

Artificial system of classification was given by

A

Carole us Linnaeus

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2
Q

Artificial system of classification was done in what basis

A

Gross superficial morphological characters that took vegetative Characters or on androecium

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3
Q

Artificial system of classics gave equal weightage to

A

Vegetative and sexual characters

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4
Q

Natural system of classification was given by

A

Bentham and hooker

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5
Q

Natural system of classification were based on?

A

Natural affinities that included not only external but also internal structure like anatomy ultra structure embryology and photochemistry

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6
Q

Phylogenetic system of classification believes that

A

Organisms occupying same taxa have evolutionary relationship(common ancestor)

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7
Q

Phylogenetic system of nomenclature is accepted

A

True

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8
Q

Numerical taxonomy features

A

It takes into account all the observable characters
Number and codes are allowed to each character
Hundreds of characters can be studied

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9
Q

Cytotaxonomy takes unto account

A

Cytological information like chromosome number structure and behaviour

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10
Q

Chemotaxonomy includes chemical constituentsof the plant to resolve confusions

A

True

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11
Q

Spirogyra has flagellated isogametes

A

False

Non-flagellated

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12
Q

Ulothrix gamete is motile

A

True

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13
Q

Eudorina has isogamtes

A

False

Aniso

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14
Q

At least half of the total carbon dioxide fixation on earth is carried out by algae

A

True

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15
Q

Many sorecies of porphyria laminaria and sargassum are amount 70specoes of marine alga used as food

A

True

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16
Q

Chlorella-unicellular ,used for?

A

Used as food supplements

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17
Q

Plant body of chlorophycea may be unicellular colonial or filamentous

A

True

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18
Q

Lure kids contain only proteins

A

False

Both protein and starch located in chloroplast

19
Q

Chlorophycea-cell wall

A

Inner cellulose outer pectin

20
Q

Pheophycea show great variation In size and form

A

True

21
Q

Phycomycetes have biflagellate pyriform zoospores

A

True

22
Q

Food in rhodophycea is stored in the form of………………which is very similar to………….

A

Floridian starch-very similar to amylopectin and glycogen

23
Q

Sexual reproduction is oogamous and is accompanied by complex post fertilisation events…….a feature of?

A

Rhidophycea

24
Q

Main plant body of bryophyte is haploid/diploid

A

Haploid

25
Q

Talk about the Plant body of liverwort

A

Plant body is thalloid….and the thallus is dorsiventral

26
Q

Green multicellular asexual buds that develop on small receptacles also called?

A

Gemmae,Gemma cups

27
Q

Gametophyte of moss is divided into two stages

A

Protonema and leafy stage

28
Q

Creeping green branched frequently filamentous stage that is formed directly from a spore

A

Protonema

29
Q

Leafy stage arises from

A

Secondary protonema as a lateral bud

30
Q

Which stage of mosses bear sex organs

A

Leafy stage

31
Q

Vegetative reproduction takes place by fragmentation and budding in

A

Secondary protonema

32
Q

These are used for medicinal purposes and act as soil binders

A

Pteridophyte plants

33
Q

In pteridophyte the main plant body is

A

Sporophyte

34
Q

Sporophylls form compact structures called

A

Strobilli (equisetum and selaginella)or cones

35
Q

Male sex organ is antheridium

Female sex organ is archaegonium in?

A

Pteridophyte

36
Q

Coralloid roots of cycas are an association of?

A

N2 fixing Cyanobacteria

37
Q

Leaves of gymnosperms may be simple or compound

A

True

38
Q

Cycas has simple leaves

A

False-pinnate leaves

39
Q

The strobilli bearing microsporophykks and microsporangia are called

A

Male strobili

40
Q

Pinups is dioecious

A

True

41
Q

Cycas prevents geitonogamy,how?

A

Since in cycas male and female strobili are borne on different plants

42
Q

Meaning of the word trimerous

A

Three members in each floral whorl

43
Q

Femal sex organ in a flowering plant is

A

Pistil

44
Q

Sporophytes generation is represented by one celled zygote

A

True

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