Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

PBIO > Review for Exam 2 > Flashcards

Review for Exam 2 Flashcards

1
Q

Four classes of monilophytes

A
  1. psilotopsida: whisk ferns, moonworts 2. marattiopsida: marattioid ferns 3. polypodiopsida: remaining ferns 4. equisetopsida: horsetails
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Equisetopsida

A

one living genus, equisetum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Important concepts/terms for equisetopsida

A
  1. node/internode 2. whorled leaves and branches 3. storbilus with peltate sporanigiophores 4. gametophyte and sporophyte generations can live on their own 5. fossil diversity greater, could be trees
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

stem regions of equisetum

A

pith, cortex,
vascular bundles, epidermis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is the defining feature of polypodiopsida?

A

LEPTOSPORANGIUM!

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Which group in polypodiopsida is heterosporous?

A

SALVINALES (water ferns)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is a fern leaf often called?

A

Frond!

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Pinnately compound leaf

A

once-pinnate twice-pinnate or bipinnate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

what are the structures that (estan enrrollados)

A

fiddleheads!

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Immature leaf structures coiled?

A

circinate vernation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Cluster of sporangia?

A

sorus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

outgrowth of leaf that covers the sporangia (sorus)

A

indusium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Eusporangium

A
  1. >1 initial (cell from which sporangium develops) 2. wall >1 cell layer thick 3. no annulus 4. bigger w/ more spores 5. no stalk 6. living vascular plants excluding polypodiopsida
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Leptosporangium

A
  1. 1 initial (cell from which sporangium develops) 2. capsule wall 1 cell layer thick 3. annulus 4. smaller w/ fewer spores 5. often stalk 6. polypodiopsida
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Prothallus

A

gametophyte

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

water ferns

A
  1. sporangia in specialized structures 2. sporocarps
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Marattiopsida

A
  1. six living genera 2. tropical 3. good fossil record 4. large megaphylls, circinate vernation 5. fleshy rhizomes or upright stems
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Psilotopsida

A

includes two orders: 1. orphioglossales 2. psilotales psilotum!!!

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Psilotum

A

The whisk fern: NO ROOTS OR LEAVES 1. rhizome with rhizoids 2. enations 3. dichotomous branching 4. synangia 5. protostele or siphonstele

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Early polysporangiophytes

A
  1. dichotomizing axes 2. no roots, no leaves 3. terminal sporangia 4. sporangia 5. protostele 6. gametophytes unisexual, upright gametangiophores
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Psilotum

A
  1. dichotomising axes 2. no roots, enations 3. some forms with terminals synangia 4. synangia 5. protostele or siphonostele 6. gametophytes bisexual, look like rhizomes
22
Q

Lignophytes

A
  1. clade including seed plants and related extinct groups 2. lignophyte groups share the synapomorphy of having a bifacil vascular cambium 3. draw the table thing
23
Q

Vascular cambium

A

de afuera pa’dentro: 1. peridem 2. secondary phloem 3. vascular cambium 4. secondary xylem (wood) DRAW IT OUT!

24
Q

Progymnosperms

A
  1. Archaepteris 2. heterosporous but didnt produce seeds 3. branching system looked similar to fern fronds 4. eustele 5. the stem produced wood much like that of a conifer
25
Q

Gymnosperms

A

Naked seeds

26
Q

why are gymnosperm seeds “naked”?

A

Their seeds are not enclosed in an ovary (fruit)

27
Q

Extinct diversity

A
  1. pteridosperms = seed ferns (seed plants with fern-like leaves) 2. cycadeoids = cycad-like forms (probs not related to cycads) 3. cordaites = ancestors to conifer
28
Q

what is a seed?

A

mature ovule with embryo

29
Q

what part of the ovule is the megasporangium?

A

nucellus

30
Q

what layer or layers surround the nucellus?

A

integuments

31
Q

what is the function of a megasporocyte or megaspore mother cell?

A

undergoes meiosis to produce 4 haploid megaspores

32
Q

what provides sustenance to the embryo in gymnosperm seeds?

A

megagametophyte

33
Q

what is the microgametophyte in seed plants?

A

pollen grain

34
Q

what can the microsporangia also be called?

A

pollen sacs

35
Q

which gymnosperms have sperm WITHOUT flagella?

A

conifers and gnetophytes

36
Q

what does a haustorial pollen tube do?

A

grows into and derives nutrients from the nucellus

37
Q

cycadophyta: the cycads

A
  1. often palm-like in appearance 2. pinnately compound leaves 3. dichotomous branching 4. cataphylls, corraloid roots 5. simple cone structure
38
Q

what can the ovule-bearing strobilus be called in cycads?

A

ovulate cone

39
Q

what can the pollen-producing strobilus be called in cycads?

A

pollen cone

40
Q

what is dioecious?

A

plants produce ovules or pollen

41
Q

what is monoecious?

A

plants produce ovules and pollen

42
Q

Explain axillary branching

A

branches form from buds in leaf axils

43
Q

what does deciduous mean?

A

loses leaves seasonally

44
Q

what is a cotyledon?

A

seed leaf

45
Q

Gnetophyta

A
  1. three genera: a. ephedra b gnetum c. welwitschia 2. typically dioecious 3. reproductive structures are compound cones 4. sperm lack flagella
46
Q

gnetophyte shares some features with angiosperms

A
  1. Vessels: water-conducting tubes found in angiosperms made of cells called vessel elements 2. double fertilization: both sperm in pollen grain fuse with structures in the ovule) 3. gnetum and weltwitschia lack archegonia 4. sometimes, both pollen sacs and ovules on strobili
47
Q

Pinus leaves

A
  1. needle leaf 2. sheath DRAW IT OUT!
48
Q

Pinus pollen cone

A
  1. microsporophyll 2. microsporangium (abaxial) DRAW IT OUT!
49
Q

Pinus ovulate cone

A
  1. Ovuliferous scale 2. bract DRAW IT OUT!
50
Q

Taxaceae

A
  1. Aril (looks like a berry/cherry) 2. seed (inside aril)
51
Q

WORLD’S TALLEST TREE

A

Coast Redwood!

PBIO (14 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions