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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
Leaves of pteridophyte are classified into?
Megaphyll and microphyll
26
The spore producing part of fern is called
Sori
27
The cone like structure of lycophyte is called
Strobili
28
Name the two phylum of the pteridophyte
Lycophyta Monilophyta
29
What are fronds
The coiled tip that unfurls and grows from the rhizome
30
Which plant has branching stem but no root in pteridophyte
Psilotum
31
Which two groups did RH Whittaker divided the plant kingdom
Cryptogamae and phanyrogamae
32
Give example of algae of freshwater stagnant water
Spirogyra, Volvox, Chlamydomonas
33
Example of algae of running freshwater
Ulothrix and Chara
34
Marine water algae
Ectocarpus and Polysiphonia
35
Sapophytic algae
Euglena and Vaucheria
36
Cryptophytes example of algae
Nostoc and Anabaena
37
Halophytic algae eg.
Chlamydomonas and Dunaliella
38
Epiphytic algae eg.
Oedogonium and Microspora
39
Epizoic algae
Chladophore
40
Endozoic algae eg.
Zoochlorella in Hydra Oscillatoria in digestive tract
41
Symbiotic algae eg.
Lichens, Nostoc with anthoceros, Anabaena with Cycas
42
Cryophytic algae eg.
Chlamydomonas
43
Lithophytic algae
Nostoc, Rivularia
44
Paracytic algae eg.
Cephaleuros causes red rust in coffee and tea
45
Thermophytes eg. In algae
Blue green algae
46
Give eg. Of algae that doesn't have true cell wall.
Euglena and Gymnodium
47
Which class of algae doesn't have flagella?
Rhodophycea and Cyanophyceae
48
Two types of flagella
Whiplash (acronematic) and tinsel (pleuroneumatic)
49
Give example of algae with haplontic life cycle
Chlamydomonas
50
Give example of algae with diplontic life cycle
Chladophora, Fucus, Sargassum and Diatoms
51
Examples of green algae
Chlamydomonas, Volvox, Ulothrix, Spirogyra and Chara
52
Examples of red algae
Polysiphonia, Porphyra, Gelidium and Gracilaria
53
Example of brown algae
Ectocarpus, Dictyota, Laminaria, Fucus, and Sargassum
54
Which process does prokaryotic cells does not undergo? Mitosis or meiosis
Mitosis
55
Give example of mesokaryotic algae?
Dinophyceae
56
What is eye spot or stigma?
It is a pigmented spot which are light sensitive.
57
What is the membrane of vacoule called?
Tonoplast
58
Which type of algae does not have pigment? What do they have?
Cyanophyceae They have chromoplasm
59
Name the two types of plastids.
Leucoplast and chromoplast
60
Name the two types of chromoplast.
Chloroplast and chromatophore
61
Which type of chlorophyll is present in all the algae?
Chlorophyll a
62
What is xanthophyll? Types?
Xanthophyll is made from carotene and molecular oxygen. Violaxanthin, neoxanthin, and fucoxanthine
63
Three types of phycobilin?
Phycoerythin, phycocyanins and allophycocyanin
64
What are pyrenoids?
They are made of proteins. Helps in synthesis and storage of starch.
65
Give example of algae that undergoes cell division.
Chlamydomonas
66
Example of alga that forms tuber
Chara
67
Example of algae that forms adventitious branching.
Fucus and Dictyota
68
Cell wall of red, green, and brown algae.
Green - cellulose and pectic Red - cellulose and pectic Brown - cellulose, fucinic and alginic algae
69
Reserve material of red, green, and brown algae.
Green - Starch Red - Starch (floreadin) Brown - Laminarin and mannitol
70
Which type of algae has phycoerythin?
Rhodophycea
71
Which algae is which in iodine?
Fucus and Laminaria
72
Which light does red algae absorb in the deep ocean?
Blue and green light

Plant Sciences (5 decks)

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