Plants Flashcards

0
Q

Antheridium

A

Produces male gametes (sperm)

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1
Q

Archegonium

A

Produces female gametes (eggs)

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2
Q

Gametophyte

A

Haploid Generation producing gametes through mitosis

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3
Q

Sporophyte

A

(Dominant in vascular plants) Diploid plant generation produces spores

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4
Q

Spore

A

Haploid reproductive structures

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5
Q

Protonema

A

Filamentous immature gametophyte stage

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6
Q

Capsule

A

Sporangium- spore producing

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7
Q

Peristome

A

“Teeth” regulates operculum discharge from capsule

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8
Q

Hyaline cell

A

Hollow, dead at maturity, water retaining for Sphagnum

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9
Q

Sporopollenin

A

Very stable polymer of plant spores and pollen

Exact composition is unknown

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10
Q

Thalloid

A

Body of a fungus

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11
Q

Indusium

A

Membranous tissue covering sori

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12
Q

Sorus

A

Cluster of spore producing receptacles underneath frond of ferns

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13
Q

Strobilus

A

Cone of a conifer

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14
Q

Xylem

A

System of vascular tissue
Water/mineral transport
Walls reinforced with Lignin
Transpiration

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15
Q

Phloem

A

System of vascular tissue
Sugar transport
Living cells

16
Q

Stomata

A

Openings through cuticle to allow gas diffusion in/out of leaves

17
Q

Heterosporous

A

Plants having micro (sperm) and mega (eggs) sporangia

18
Q

Homosporous

A

Creates single size and sex spores

19
Q

4 derived traits of Plantae

A

Multicellular
Eukaryotic
Primarily terrestrial
(Oxygenic) photoautotrophic

20
Q

4 primitive features of Bryophytes

A

Non vascular
Flagellate sperm require water to reach egg
Seedless- spore dispersal only
Gametophyte is dominant life stage

21
Q

What distinguishes 3 phyla of Bryophytes in terms of growth?

A

The gametophyte stage is dominant

Produces gametes in antheridia and archegonium

22
Q

Seta

A

Stalk that supports and provides nutrients for capsule

23
Q

What affects can Sphagnum have on soil conditions?

A

Sphagnum can retard nutrient cycling and decomposition

24
Q

4 features of vascular plants

A

Vascular tissue
Stomata
Water-proof cuticle
Below-ground roots

25
Q

How long ago did vascular plants first appear? What fossil evidence?

A

420 million years ago

Cooksonia

26
Q

2 extant phyla of vascular plants

A

Lychophytes: club mosses
Monilophytes: ferns, horsetails

27
Q

What geological period did seedless vascular plants reach their greatest abundance and diversity?

A

Carboniferous

28
Q

What feature characterizes the supergroup Unikonta?

A

Singular posterior flagellum

29
Q

How do fungi feed differently form animals?

A

They don’t break down their food and they absorb the nutrients

30
Q

Defining structures that (sexually) produce spores in Ascomycota and Basidiomycota

A

A: ascus
B: basidium

31
Q

5 phyla of fungi

A
Chytridiomycota
Basidiomycota
Zygomycota
Glomermycota 
Ascomycota
32
Q

What two groups of organisms form the mutualistic relationship known as Lichen?

A

Ascomycetes and Green Algae