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BIO 102 Lecture > Plants - T2 S1 > Flashcards

Plants - T2 S1 Flashcards

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Biology 101 flashcards
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

A

pollen

20
Q

produce pollen and egg cells

A

flowers

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

A

bryophytes

25
Q

List three examples of bryophytes.

A

liverworts, hornworts, mosses

26
Q

bryophyte reproduction involving gemmae

A

asexual

27
Q

bryophyte reproduction involving swimming sperm and spores

A

sexual

28
Q

Most bryophyte reproduction is ___.

A

asexual

29
Q

include ferns and their close relatives; have vascular tissue, true roots, stems, and leaves

A

seedless vascular plants

30
Q

enables plant to grow larger, giving it an edge in competition for sunlight

A

vascular tissue

31
Q

List some examples of seedless vascular plants.

A

club mosses, whisk ferns, horsetails, true ferns

32
Q

reproduce with swimming sperm; cannot reproduce in absence of water

A

seedless vascular plants

33
Q

Bryophytes have a conspicuous ___.

A

gametophyte

34
Q

Seedless vascular plants have a conspicuous ___.

A

sporophyte

35
Q

List some examples of gymnosperms.

A

cycads, ginkgo, conifers, gnetophytes

36
Q

produce pollen and seeds in cones

A

conifers

37
Q

conifer cones bear ___

A

reproductive structures

38
Q

conifers: large female cones bear ___

A

2 sporangia

ovules

39
Q

conifers: small male cones bear ___

A

sporangia on thin scales

produces pollen

40
Q

most are eudicots or monocots

A

angiosperms

41
Q

angiosperm with 2 cotelydons

A

eudicot

42
Q

angiosperm with a single cotyledon

A

monocot

43
Q

What are unique to the angiosperm life cycle?

A

flowers and fruits

44
Q

dominant sporophyte, produce pollen and seeds, flowers are reproductive organs, double fertilization

A

angiosperms

45
Q

Explain double fertilization of angiosperms.

A

each pollen grain has 2 sperm nuclei, one fertilizes egg and the other produces triploid endosperm

46
Q

What animals often participate in angiosperm reproduction?

A

arthropods and vertebrates

47
Q

How do animals participate in angiosperm reproduction?

A

pollination and dispersal of seeds and fruits

BIO 102 Lecture (19 decks)

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