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Biology > Seedless Plants > Flashcards

Seedless Plants Flashcards

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1
Q

What are glaucophytes ?

A
  • unicellular
  • freshwater
  • chlorophyll and carotenoids
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2
Q

What are red algae

A
  • 6000-7000 specs
  • most are multicellular (seaweeds)
  • filamentous or leaflike blades / holdfast
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3
Q

What does phycoerythrin do

A
  • reflects red and absorbs blue
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4
Q

What does carrageenan do

A
  • thickener in ice cream and processed foods
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5
Q

What is agar

A

Microbial growth

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6
Q

What is nori

A

Important food sources in Asia

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7
Q

What is shallow h20

A

High chlorophylla and carotinods

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8
Q

What is the Irish moss

A
  • hold fast
  • stipe
  • blade
  • grows attached to rocks in the interracial zone
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9
Q

What is green algae

A
  • > 21,000 species
  • unicellular
  • colonial
  • multicellular
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10
Q

What is chlorophytes

A
  • mostly freshwater
  • unicellular
  • colonial
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11
Q

What is clamydomonas

A
  • unicellular
  • pear shaped
  • single cup shaped
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12
Q

What is volvox

A
  • unicellular
  • 50,000 vegetative cells
  • oear shaped
  • single cup shaped
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13
Q

Ulva ( sea lettuce )

A
  • multicellular
  • single nucleus
  • cup shaped chloroplast
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14
Q

Spirogyra

A
  • multicellular , filamentous
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15
Q

Chara

A
  • multicellular
    Superficially resembles land plants
    Stem - like / leaf like structures
    Fresh or brackish water attached to the muddy bottom
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16
Q

Stonewart

A

Stems calcium carbonate on cell walls / rough texture

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17
Q

Skunkweed

A

Unpleasant odor , mix of rancid garlic and skunk

18
Q

Antheridia

A

Large round structures male reproductive structures

19
Q

What are the land plant advantages ?

A

Greater access to sunlight increased availability of carbon dioxide ( c0 2)
Mineral nutrients found in soil

20
Q

What does gametophyte produce

A

Produces gametes

21
Q

What are sporophyte producing

A

Produces spores

22
Q

What is cuticle

A

Waxy covering that retards desiccation

23
Q

What is stomata

A

Openings in leaves that regulate gas exchange and water loss

24
Q

What is stomata

A

Openings in leaves that regulate gas exchange and water loss

25
Q

Gametangia

A

Reproductive structures of gametophyte encloses and protect gametes

26
Q

Protected embryos

A

Reproductive structures within gametophyte retains and nourishes the sporophyte embryo

27
Q

Protective pigment

A

Prevent damage from UV RAdiation

28
Q

Sporopollenin

A

Tough polymer found in walls of spores and pollen grains ; protects from desiccation allows dispersal by air

29
Q

Mycorrhizae

A

Mutually beneficial association between a fungus and plant roots ; increase plants nutrient uptake from soil

30
Q

Nonvascular land plants

A

No vs ular tissue
Lack true roots , leaves and stems
Grows in dense mats in moist areas

31
Q

Nonvascular land plants

A

No vs ular tissue
Lack true roots , leaves and stems
Grows in dense mats in moist areas

32
Q

Gametophyte plant

A

Photo synthetic
Cells are haploid
Produces haploid gametes via mitosis

33
Q

Sporophyte plant

A

Usually non photosynthetic
Cells are diploid
Permanently attached o and nutritionally dependent on gametophyte

34
Q

Liverworts

A

Only nonvascular plant group lacking stomata

35
Q

Mosses

A

Sporophyte produces spores which germinate o form a protonema
Protonema buds develop into new gametophytes

36
Q

Polytrichum

A

Commonly called haircut moss or hair moss approximately 70 species

37
Q

Seedless vascular land plant

A

Have vascular tissue
Grow in moist areas

38
Q

Homosporous

A

Plants have 1 type

39
Q

Heterosporous

A

Plants have 2 types of spores

40
Q

Sporophyte plant

A

Photosynthetic
Cells are diploid
Independent of gametophyte

41
Q

Horsetails

A

Leaves are micophylls
Stems contain silica

Biology (13 decks)

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