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Plant Sciences > Diversity (Mostly Algae) > Flashcards

Diversity (Mostly Algae) Flashcards

1
Q

Which algae shares the traits with plant? Give example

A

Charophytes. Zygnema

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2
Q

What type of chlorophyll is present in green, brown and red algae?

A

Green: chlorophyll a and b
Red : chlorophyll a and d
Brown : chlorophyll a and c

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3
Q

Cell wall of all types of algae

A

Green - cellulose
Red - cellulose
Brown - cellulose and alginic acid

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4
Q

Storage material of all algae

A

Green - starch
Red - starch in cytoplasm
Brown - laminarin and mannitol

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5
Q

Phycobilin is present in which type of algae

A

Red algae

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6
Q

Two types of spores produced asexually in algae

A

Zoospores and aplanospores

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7
Q

Chlorella forms which type of spores after their wall rupture?

A

Autospores

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8
Q

What is the name of the structure formed in unfavourable condition by algae

A

Akinetes and hypnospores

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9
Q

Name the male and female organ in the algae

A

Antheridium and oogonium

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10
Q

Three types of spores in sexual reproduction

A

Isogamous, anisogamous and oogamous

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11
Q

Who are the amphibians of the plant

A

Bryophytes

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12
Q

Name the subdivisions of the bryophytes with example.

A

Heptophyta - liverworts
Anthocerophyta - hornworts
Bryophyta - mosses

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13
Q

Which form is dominating in bryophytes

A

Gametophyte

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14
Q

Protonema

A

Unicellular branch-like stage which is a mass of green. Absorbs water and has large surface area

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15
Q

Which part is used in anchorage for the bryophytes

A

Rhizoids

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16
Q

How is water absorbed in bryophytes

A

Capillary action by the body surface

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17
Q

How are the sex organs of the bryophytes

A

Male gametophyte is called antheridium
Female gametophyte is called archigonium and is jacketed

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18
Q

Is the sporophytic phaclse dependent on the gametophytic phase?

A

Yes

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19
Q

What is peristome

A

The capsule has teeth like structure which are called peristome

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20
Q

Which bryophyte form symbiotic relationship with nitrogen fixing bacteria

A

Hornworts

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21
Q

Which bryophyte doesn’t have a seta

A

Hornworts

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22
Q

Peat moss is also called

A

Sphagnum

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23
Q

Which is the dominant phase of pteridophyte

A

Sporophytic phase

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24
Q

Xylem of pteridophyte characteristics?

A

Is lignified and dead. Have tracheids and tube shaped cells

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25
Q

Leaves of pteridophyte are classified into?

A

Megaphyll and microphyll

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26
Q

The spore producing part of fern is called

A

Sori

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27
Q

The cone like structure of lycophyte is called

A

Strobili

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28
Q

Name the two phylum of the pteridophyte

A

Lycophyta
Monilophyta

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29
Q

What are fronds

A

The coiled tip that unfurls and grows from the rhizome

30
Q

Which plant has branching stem but no root in pteridophyte

31
Q

Which two groups did RH Whittaker divided the plant kingdom

A

Cryptogamae and phanyrogamae

32
Q

Give example of algae of freshwater stagnant water

A

Spirogyra, Volvox, Chlamydomonas

33
Q

Example of algae of running freshwater

A

Ulothrix and Chara

34
Q

Marine water algae

A

Ectocarpus and Polysiphonia

35
Q

Sapophytic algae

A

Euglena and Vaucheria

36
Q

Cryptophytes example of algae

A

Nostoc and Anabaena

37
Q

Halophytic algae eg.

A

Chlamydomonas and Dunaliella

38
Q

Epiphytic algae eg.

A

Oedogonium and Microspora

39
Q

Epizoic algae

A

Chladophore

40
Q

Endozoic algae eg.

A

Zoochlorella in Hydra
Oscillatoria in digestive tract

41
Q

Symbiotic algae eg.

A

Lichens, Nostoc with anthoceros, Anabaena with Cycas

42
Q

Cryophytic algae eg.

A

Chlamydomonas

43
Q

Lithophytic algae

A

Nostoc, Rivularia

44
Q

Paracytic algae eg.

A

Cephaleuros causes red rust in coffee and tea

45
Q

Thermophytes eg. In algae

A

Blue green algae

46
Q

Give eg. Of algae that doesn’t have true cell wall.

A

Euglena and Gymnodium

47
Q

Which class of algae doesn’t have flagella?

A

Rhodophycea and Cyanophyceae

48
Q

Two types of flagella

A

Whiplash (acronematic) and tinsel (pleuroneumatic)

49
Q

Give example of algae with haplontic life cycle

A

Chlamydomonas

50
Q

Give example of algae with diplontic life cycle

A

Chladophora, Fucus, Sargassum and Diatoms

51
Q

Examples of green algae

A

Chlamydomonas, Volvox, Ulothrix, Spirogyra and Chara

52
Q

Examples of red algae

A

Polysiphonia, Porphyra, Gelidium and Gracilaria

53
Q

Example of brown algae

A

Ectocarpus, Dictyota, Laminaria, Fucus, and Sargassum

54
Q

Which process does prokaryotic cells does not undergo? Mitosis or meiosis

55
Q

Give example of mesokaryotic algae?

A

Dinophyceae

56
Q

What is eye spot or stigma?

A

It is a pigmented spot which are light sensitive.

57
Q

What is the membrane of vacoule called?

58
Q

Which type of algae does not have pigment? What do they have?

A

Cyanophyceae
They have chromoplasm

59
Q

Name the two types of plastids.

A

Leucoplast and chromoplast

60
Q

Name the two types of chromoplast.

A

Chloroplast and chromatophore

61
Q

Which type of chlorophyll is present in all the algae?

A

Chlorophyll a

62
Q

What is xanthophyll? Types?

A

Xanthophyll is made from carotene and molecular oxygen.
Violaxanthin, neoxanthin, and fucoxanthine

63
Q

Three types of phycobilin?

A

Phycoerythin, phycocyanins and allophycocyanin

64
Q

What are pyrenoids?

A

They are made of proteins. Helps in synthesis and storage of starch.

65
Q

Give example of algae that undergoes cell division.

A

Chlamydomonas

66
Q

Example of alga that forms tuber

67
Q

Example of algae that forms adventitious branching.

A

Fucus and Dictyota

68
Q

Cell wall of red, green, and brown algae.

A

Green - cellulose and pectic
Red - cellulose and pectic
Brown - cellulose, fucinic and alginic algae

69
Q

Reserve material of red, green, and brown algae.

A

Green - Starch
Red - Starch (floreadin)
Brown - Laminarin and mannitol

70
Q

Which type of algae has phycoerythin?

A

Rhodophycea

71
Q

Which algae is which in iodine?

A

Fucus and Laminaria

72
Q

Which light does red algae absorb in the deep ocean?

A

Blue and green light

Plant Sciences (5 decks)

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