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Bio 2 Lab > Unit 2 > Flashcards

Unit 2 Flashcards

1
Q
  1. What Supergroup does Kingdom Plantae Belong to + Characteristics?
A

Archaeoplastica: Engulfed a Cyanobacteria

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2
Q
  1. Characteristics Specific to the plants
A
  1. Multicellular
  2. Autotrophs
  3. Nutrients by Photosynthesis
  4. Plastids: Chlorophyll A & B & Carotenoids
  5. Cell Walls: Cellulose
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3
Q
  1. Adaptations to move onto Land
A
  1. Sporopollenins: Prevents Drying Out
  2. Waxy Cuticles
  3. Gametangia
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4
Q
  1. When Did Plants first show up in fossil records?
A

500 million years ago

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5
Q
  1. How is the thallus flattened in Hepatophyta?
A

Dorsoventrally

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6
Q
  1. What generation is Hepatophyta?
A

Gametophytes

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7
Q
  1. The function of the upper section of the thallus
A

Photosynthesis

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8
Q
  1. The function of the lower section of the thallus
A

Water Absorption

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9
Q
  1. Rhizoid vs Scale
A

Single-Celled vs. Multicellular

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10
Q
  1. The function of the air chambers surrounding the chlorophyll-bearing Cells
A

Water Absorption

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11
Q
  1. What does Antheridia Produce?
A

Sperm

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12
Q
  1. What does Archegonia Produce?
A

Egg

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13
Q
  1. The Function of the Elaters? How do they work?
A

Dispersal: Humidity flings the spores away

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14
Q
  1. Hepatophyta n / 2n?
A

Diploid

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15
Q
  1. Sporophyte is attached to a gametophyte. What is its sex?
A

Female

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16
Q
  1. How are Gemmae Dispersed in Hepatophyta?
A

Rains & Water splashes the gemmae out of the cup

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17
Q
  1. Is there vein system in the Leaves for Bryophyta?
A

No

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18
Q
  1. What generation is Bryophyta
A

Gametophyte

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19
Q
  1. Conducting tissues of Vascular Plants:
A

Xylem and Phloem, Found 385 Million Years Ago

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20
Q
  1. Lycophtya Characteristics
A

True Stems, Roots, Leaves

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21
Q
  1. What generation is Lycophyta?
A

Sporophytes

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22
Q
  1. Microphylls
A

Small leaves with One Vein

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23
Q
  1. Sporophylls
A

Specialized leaves that produce sporangia

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24
Q
  1. Pterophyta Characteristics
A

Only have True Stems

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25
Q
  1. Pterophyta Generation
A

Sporophyte

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26
Q
  1. Vascular characteristics in Pterophyta- Sphenophyta
A

True Roots, Stems, Leaves

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27
Q
  1. Generation of Sphenophyta
A

Sporophytes

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28
Q
  1. Substance Found
A

Silica

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29
Q
  1. Strobili
A

Small Cones at the tips of stems

30
Q
  1. Vascular characteristics in Pterophyta- Ferns
A

True Roots, Stems, Leaves

31
Q
  1. Generation of Ferns
A

Sporophytes

32
Q
  1. Megaphylls
A

Larger Leaves with more than one vein

33
Q
  1. Fiddle heads, Circinate Vernation
A

Rolled up Leaves / Type of Coiling

34
Q
  1. Heavy Walled Brownish Cells
35
Q
  1. Cells that are open ends of the Annulus
36
Q
  1. Prothallus
A

Single Type but develop into a gametophyte with both sex organs

37
Q
  1. Monoecious
A

What Ferns give Rise to

38
Q
  1. Rhizoids
A

Absorption and Anchorage

39
Q
  1. Archegonia grow
A

Sporophyte

40
Q
  1. What happens to gametophyte prothallus after sporophyte begins to grow?
A

Eventually die off

41
Q
  1. Characteristics of Seed Plants
A
  1. All multicellular Eukaryotes
  2. Autotrophs
  3. Plastids
  4. Walls Consisting of Cellulose
42
Q
  1. When did seed plants first appear in the fossil record?
A

360 million years ago

43
Q
  1. Cycadophyta shows
A

the first true secondary growth

44
Q
  1. Ginkgophyta
A

Only male are planted because its messy with foul smell. Originally from China

45
Q
  1. Gnetophyta
A

Produces Epinderine, Raises heart and blood pressure. Has Vessel Elements

46
Q
  1. Male Cones
A

Produce 4 Haploid microspores

47
Q
  1. Wings serve as
48
Q
  1. Which cell produces 2 Sperm Cells
A

Spermatogeneous Cell

49
Q
  1. What does Megaspore Produce?
A

4 Megaspores

50
Q
  1. Function of Nucellus?
51
Q
  1. What do the megaspores develop into?
A

Female Gametophyte

52
Q
  1. Which structure are haploid?
A

Archegonium & 2 Eggs

53
Q
  1. Which structures are diploid?
A

Nucellus and Integument

54
Q
  1. Function of the Nucellus
A

Food Source

55
Q
  1. Function of the Cotyledons
A

Food Source

56
Q
  1. What does Hypocotyl Develop into?
A

Shoot System

57
Q
  1. What does Radicle Develop into?
A

Root System

58
Q
  1. Epigynous
59
Q
  1. Perigynous
60
Q
  1. Hypogynous
61
Q
  1. Parietal
62
Q
  1. Axile
63
Q

36.Free-Central

64
Q
  1. Cross Pollination
A

Transfer of pollen from one individual plant to another

65
Q
  1. Most Common Method to prevent flowers from pollinating themselves
A

Self-incompatibility

66
Q
  1. Three Nuclei may be seen at
67
Q
  1. What happens to the antipodals after fertilization?
A

Disappears

68
Q
  1. What happens to the polar nuclei after fertilization?
A

Join with a sperm to produce endosperm

69
Q
  1. What happens to synergids after fertilization
A

Disappears

70
Q
  1. Why is it called double fertilization
A

Fertilizes twice

71
Q
  1. Different Types of Dispersal Mechanisms
A

Animals / Humans

Bio 2 Lab (2 decks)

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