Plants - T2 S1 Flashcards

(47 cards)

1
Q

source of peat moss

A

sphagnum

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2
Q

What can peat moss be used for?

A

fuel

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3
Q

Are plants autotrophs or heterotrophs?

A

autotrophs

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4
Q

What do autotrophs release as a waste product?

A

oxygen

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5
Q

form the base of food webs

A

plants

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6
Q

closest relative of plants

likely gave rise to plants

A

green algae

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7
Q

adapted for life in water

A

algae

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8
Q

adapted for life on land

A

plants

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9
Q

plant coating that minimizes water loss

A

cuticle

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10
Q

pores in leaf epidermis that permit gas exchange

A

stomata

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11
Q

List resources obtained by plants.

A

light, CO₂, water, minerals

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12
Q

transports water and nutrients through xylem and phloem

A

vascular tissue

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13
Q

transports water and dissolved minerals

A

xylem

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14
Q

transports sugars (dissolved in water)

A

phloem

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15
Q

strengthens cell walls of xylem for support

A

lignin

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16
Q

anchor the plant and absorb water and minerals

A

roots

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17
Q

protect and disperse seeds

A

fruits

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18
Q

a ripened plant ovule containing an embryo and its food supply

A

seed

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19
Q

delivers sperm to female flower part

20
Q

produce pollen and egg cells

21
Q

List the two parts to plant reproduction found in alternation of generations.

A

sporophyte (diploid),

gametophyte (haploid)

22
Q

produces spores by meiosis

A

sporophyte (diploid)

23
Q

produces gametes by mitosis

A

gametophyte (haploid)

24
Q

lack vascular tissue; small, compact plants, no specialized transport tissues, lack true leaves and roots, most restricted to moist areas

25
List three examples of bryophytes.
liverworts, hornworts, mosses
26
bryophyte reproduction involving gemmae
asexual
27
bryophyte reproduction involving swimming sperm and spores
sexual
28
Most bryophyte reproduction is ___.
asexual
29
include ferns and their close relatives; have vascular tissue, true roots, stems, and leaves
seedless vascular plants
30
enables plant to grow larger, giving it an edge in competition for sunlight
vascular tissue
31
List some examples of seedless vascular plants.
club mosses, whisk ferns, horsetails, true ferns
32
reproduce with swimming sperm; cannot reproduce in absence of water
seedless vascular plants
33
Bryophytes have a conspicuous ___.
gametophyte
34
Seedless vascular plants have a conspicuous ___.
sporophyte
35
List some examples of gymnosperms.
cycads, ginkgo, conifers, gnetophytes
36
produce pollen and seeds in cones
conifers
37
conifer cones bear ___
reproductive structures
38
conifers: large female cones bear ___
2 sporangia | ovules
39
conifers: small male cones bear ___
sporangia on thin scales | produces pollen
40
most are eudicots or monocots
angiosperms
41
angiosperm with 2 cotelydons
eudicot
42
angiosperm with a single cotyledon
monocot
43
What are unique to the angiosperm life cycle?
flowers and fruits
44
dominant sporophyte, produce pollen and seeds, flowers are reproductive organs, double fertilization
angiosperms
45
Explain double fertilization of angiosperms.
each pollen grain has 2 sperm nuclei, one fertilizes egg and the other produces triploid endosperm
46
What animals often participate in angiosperm reproduction?
arthropods and vertebrates
47
How do animals participate in angiosperm reproduction?
pollination and dispersal of seeds and fruits