1 Flashcards

(49 cards)

1
Q

Land plants are what kind of eukaryotes?

A

Multicellular photosynthetic

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2
Q

What characteristics or adaptations do terrestrial living plants have that distinguish them from algae?

A

reproductive, structural, and chemical adaptations

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3
Q

Land plants have a _______ that is retained and protected for some time by the parent.

A

embryo

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4
Q

The parent tissues provide nutrients to the embryo and…

A

protect the embryo from desiccation (drying out)

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5
Q

Light and CO2 are found above ground while mineral and water are found mainly in the

A

Soil

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6
Q

In plants there are many structural and functional differences between_________ and ___________

A

subterranean and aerial organs.

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7
Q

Most plants have a

A

vascular system

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8
Q

The aerial parts of most plants have a waxy coating

A

called a cuticle that reduces water loss

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9
Q

Most land plants have stomata. True or false

A

True

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10
Q

What type of life cycle do land plants have?

A

haplodiplontic

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11
Q

Within the life cycle of a plant there are multicellular stages that are ______ and multicellular stages that are _______.

A

diploid and haploid

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12
Q

Both haploid and diploid cells can divide by

A

Mitotsis

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13
Q

What adaptation distinguish land plants from their algal ancestors?

A

An embryo stage in their life cycle

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14
Q

Bryophytes are non-vascular plants which are

A

mosses

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15
Q

Tracheophytes are vascular plant and they can be seedless or have seeds. True or False

A

True

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16
Q

Bryophytes include what type of plants?

A

mosses, liverworts, and hornwarts

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17
Q

What do most bryophytes lack… And what is the dominant generation?

A

vascular tissues…gametophyte (n)

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18
Q

Gametophyte (n) is:

A

leaflike structures stemlike axis rhizoids

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19
Q

Rhizoids consist of several cells that…

A

anchor the moss to a substrate and absorb little water.

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20
Q

Mosses reproduction structures are the

A

archegonium and antheridium

21
Q

The archegonium is:

A

a multicellular structure that produces the egg

22
Q

The antheridium is:

A

a multicellular sperm producing structure.

23
Q

what are the sperm from the antheridium get to the egg in the archegonium?

A

The sperm swim

24
Q

The zygote that results from fertilization develops into a…

25
The sporophyt is not ________ and depends on the ________.
photosynthetic | gametophyte
26
The sporangium produces spore mother cells (2n) that undergo...
meiosis to form spores.
27
Mosses are common in humid areas and are the most abundant plants in the....
Arctic tundra
28
Biological soil crusts typically consist of a mixture of organisms including _______, ________, ________, and heterotrophic microorganisms.
mosses, lichens, algae, cyanobacteria
29
What do biological soil crusts reduce? | what does sphagnum peat moss do?
soil erosion and increase soil fertility | addendum that improves water retention
30
In hepaticophyta (liverworts) the gametophytes tend to be ______ and the rhizoids are __________.
flat...one celled.
31
For sexual reproduction of liverworts, like mosses the sporophyte is...? Fore asexual reproduction the gemmae are...?
Non-photosynthetic | fragments of the gametophyte that are dispersed by raindrops.
32
Most liverworts live in ...?
tropical forests
33
ANthocerotophyt (hornworts) the gametophyt is similar to that of a...?
liverworts (flat)
34
``` The sporophyte (hornworts) is the _________ and has _________ and ________? The sporophyte is still...? ```
photosynthetic and has stomata and cuticle | dependent on the gametophyte and is not free living
35
How many species of seedless vascular plants are there ? What period did they dominate in?
15,000 living species, 2 phyla | carboniferous period
36
The most extensive coal deposits are derived from seedless vascular plants that grew during the...?
carboniferous period
37
Lycophyt are _______? and Pterophyta are _________, ________, and __________?
Club mosses Ferns, whisk Fern, Horsetails
38
In seedless vascular plants the ________ is the dominant generations.
sporophyte
39
The sporophyte generation in seedless vascular plants has ...? The aerial portions of the sporophyte are covered by a...? The sperm have...?
vascular tissues (xylem and phloem) cuticle and stomata flagella
40
``` The lycophytes (club mosses have sporophyte (2n) which means has a photosynthetic microphylls (_______) Where do the sporangia form? That happens in the structure of the sporangium? ```
(leaves with one vein) at the end of the stems meiosis occurs and haploid develop
41
Unlike bryophytes, lycophytes have...?
well developed vascular tissues
42
Pterophyta the sporangium produces spore mother cells (2n) that undergo meiosis to form...?
spores (n)
43
In most pterophyta (ferns), each spore produces a bisexual ...? the gametophyte is..?
gametophyte (n) with archegonia and antheridia | photosynthetic
44
for the pterophyta the sperm swim to the eggs and fertilization leads to the development of an ________, which grows into another ______(sporophyte).
embryo...fern
45
A few ferns are ________? and they produce what two types of spores? the heterosporous condition is important in the...?
heterosporous megaspores and microspores evolution of seeds
46
For Pterophyta ferns most have megaphylls which means...? In Asexual reproduction the Rhyzomes are
branched system of veins (more than one vein) underground stems
47
Pterophyta habitats consist of...? What does cyanobacteria do??
tropics, temperate climates and even deserts (resurrection fern) converts N2 into NH3. It is present in rice paddies.
48
Pterophyt (whisk ferns) lack...? an underground stem ((rhizomes) develop a symbiotic relationship with...? For horsetails the stems are _______? The sporangia form at the tip of the...?
leaves or these structures or are very reduced mycorrhizae Photosynthetic reproductive stems
49
Land plants evolved form a species of...
Charoophytes