Test 3 Flashcards

1
Q

Why did plants adapt to terrestial environment

A

better water loss management

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2
Q

what has been the trend for plant evolution

A

more embryo protection and smaller gametophyte

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3
Q

Organisims that have a haplodiplontic life cycle have what

A

multicellular haploid & diplod stages

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4
Q

In humans gametes are formed by what process vs plants process

A

Humans=meiosis plants=mitosis

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5
Q

How are land plants different than algae

A

waxy cuticle, Water transporting tissues, stomata for gas exchange

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6
Q

in mosses & ferns the haploid (gametophyte) generation occupies (blank) than in seeded plants

A

larger portion of life cycle

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7
Q

Typical land plants have this type of life cycle which is multicellular halpoid & diplod stages

A

haplodiplontic

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8
Q

what is the closest descendant to land plants

A

bryophytes

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9
Q

Fungi in Lichen are

A

Obligate symbiotes

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10
Q

What are mycotoxins

A

Toxins that fungi produce

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11
Q

are Mycelia are long filaments in the hyphym

A

False

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12
Q

in order for an organism to be classified as a fungi it needs what

A

be specialized to extract nutrients

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13
Q

T/F In karyogamy the only diploid cell is produced

A

True

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14
Q

What are mycorrhizae

A

fungi with symbiotic relationship with plant roots

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15
Q

T/F yeasts are single celled ascomycetes

A

True

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16
Q

can glomeromycota reproduce sexually

A

no

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17
Q

Which group are aquatic flagellated fungi

A

chytridiomycota

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18
Q

T/F all land plants are haplodiplontic

A

True

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19
Q

what is trend among plants

A

Reduced haploid and longer diploid

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20
Q

The diploid stage is the gametophyte or sporophyte phase

A

sporophyte

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21
Q

which generation is dominant in bryophytes

A

gametophyte

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22
Q

are club mosses part of bryophyte family

A

No

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23
Q

Which are tracheophytes

A

lycophytes & pterophytes

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24
Q

list gymnosperms in highest number to lowest

A

conifer, cycad, gneto,ginko

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25
where are ovules on a gymnosperm
on a scale
26
if a plant is idecious what does that mean
male and female on different trees
27
which is 1n & 2n in gymnosperm
1n=megaspore 2n=megasporangium
28
what is not apart of the carpel
filament
29
where does pollen production occur
anther
30
T/F cell closest to micropyle becomes egg
True
31
T/F the embryo is next sporophyte generation
True
32
What kind of fruit is a peach
drupe
33
what kind of fruit is blackberry
aggregate
34
do monocots have a taproot system
no
35
do dicots have netlike veins
yes
36
The seed coat is formed by the hardening of what
integument
37
whaat part of the fruit allows it to spin like a hellicopter
pericarp
38
which structure produces the fruit
ovaries
39
which part of the seed provides food for embryo
endosperm
40
ctenophores are possibly what becasue of the meoderm
triploblasts
41
which phylum has coelomate, bilaterian animals that have a structure called a notochord.
chordata
42
Which one of the following terms applies to the phylum Platyhelminthes?
acoelomate
43
How could a biologist distinguish an acoel flatworm from a free living platyhelminth?
The acoel worm would be solid throughout, since it lacks a gut.
44
What are the three animal phyla that dominate animal life on land?
Nematoda, Arthropoda, Chordata
45
Select the following phylum that includes animals that are unsegmented, acoelomate, and have a digestive cavity with a single opening.
Platyhelminthes
46
Which one of the following terms applies to the phylum Cnidaria?
radial symmetry
47
Protostomes develop through
spiral clevage
48
Predict what would occur if the nematocysts of a cnidarian were no longer able to function.
couldnt capture food
49
Solid worms that lack a body cavity are known as
acoelomates
50
deuterostomes contain which two groups
sea urchins, sea stars
51
how would you distignuish tracheophyte vs algeae
tracheophytes have trachids
52
bryiohytes cannot grow tall because the lack vascular structure
53
the relationship between plants and fungi
mycorrhizal associations
54
how are the gametophytes in liverworts
flat
55
Why are conifers and cycads considered gymnosperms?
The female gametophyte is not completely enclosed in sporophyte tissue at the time of pollination.
56
pollen comes from which part
anther
57
A fruit-bearing dioecious flower would be called
a gynoecium.
58
T/F In seed plants, the entire male gametophyte is transported to the female.
true
59
Double fertilization occurs when
one sperm fuses with the egg and the other sperm fuses with both polar nuclei.
60
Ephedrine is a stimulant that is derived from a member of the phylum
Gnetophyta.
61
What is the function of pine resins?
reduction of fungal and insect parasitism
62
T/F All gymnosperms have needle-like leaves and produce some type of resin.
false
63
Antipodals and synergids are
produced in female gametophyte
64
Based on the outcome for plants, a monkey eating a banana is a
disperser
65
What does it mean if a plant is dioecious?
There are separate male and female sporophytes.
66
Hepaticophytes lack stomata and tracheids. What would provide evidence to justify their inclusion in the Bryophytes and not the Charophytes?
male gametes produced in the antheridia
67
The dominant stage in the life cycle of tracheophyte plants is the
sporophyte
68
fern spores germante in to what
gametophytes, which are often heart-shaped and have rhizoids that anchor the fern to the substrate
69
how do liverworts and hornworts differ
photosynthesizing body
70
Whyich plants have a conducting system, the possession of cuticles, specialized stems, and roots, stomata, and, in many species, seeds?
tracheophyte
71
whihc plant group is closely related to tracheophytes
bryophytes
72
what is a 15meter tall tree fern
sporophyte
73
Cooksonia charatreristics
photosynthetic stems, not roots or leaves
74
what is the most abundant seedless plant
ferns
75
Hornworts differ from mosses and liverworts in containing
photosynthetic sporophytes.
76
The aquatic ancestry of bryophytes is most clearly demonstrated by what character?
the use of flagellated motile sperm
77
The colorless rootlike projections of mosses, liverworts, and hornworts, which anchor them to the substrate are called
rhizoids.
78
The gametophyte is green and nutritionally independent in
mosses, liverworts, and ferns.
79
why are giant kelp not plants
they dont have a cuticle
80
what do both mosses and club mosses have in common
chlorophyll a & b
81
what is found in a fern but not a moss
tracheids
82
why is a horestail sporophyte not a bryophyte
sporophyte has tracheids
83
Why are conifers and cycads considered gymnosperms?
The female gametophyte is not completely enclosed in sporophyte tissue at the time of pollination.
84
The fungi that cause serious plant disease, such as Dutch elm disease and chestnut blight, belong to the phylum
Ascomycota
85
How does fungal mitosis differ from animal mitosis?
The nuclear envelope often remains intact in fungal mitosis.
86
Which of the following fungi usually form arbuscular mycorrhizal associations in which the outer cells of the plant roots are penetrated by the fungal hyphae?
glomeromycetes
87
If a forest floor was polluted by a chemical that was poisonous to fungi, what consequence would you expect for the plant life?
The plants would have trouble absorbing water and nutrients from the soil.
88
The cell walls of fungi are made up of polysaccharides including
chitin
89
Why is it difficult to treat fungal infections in humans?
Fungal cells are eukaryotic.