Chap. 27

Question 1

What does the waxy cuticle in plants do?

Answer 1

prevent water loss

Question 2

What are the 2 parts of a plant life cycle?

Answer 2

Haploid Gametophyte Generation

Siploid Sporophyte Generation

Question 3

Most plants have multicellular ______.

Answer 3

gametangia

Question 4

The gametangia is surrounded with a protective jacket of____cells.

Answer 4

sterile

Question 5

Antherdia

Answer 5

produce sperm

Question 6

Archegonia

Answer 6

produce eggs

Question 7

Xylem

Answer 7

conducts water and dissolved minerals

Question 8

Phloem

Answer 8

conducts dissolved sugar

Question 9

Strengthening polymer in the walls of cells that functions for support and conduction

Answer 9

lignin

Question 10

Plants supposedly arose from what?

Answer 10

charophytes (type of green algae)

Question 11

Nonvascular plants lack what?

Answer 11

xylem and phloem

Question 12

List the 3 phyla of bryophytes

Answer 12

bryophyta (mosses)
Hepatophyta (liverworts)
anthocerophyta (hornworts)

Question 13

What phylum are mosses in?

Answer 13

Bryophyta

Question 14

Mosses live in what?

Answer 14

dense colonies or beds

Question 15

Mosses are individual plants that have tiny, hairlike____for absorption and an upright _____ structure with leaflike blades.

Answer 15

rhizoids

stemlike

Question 16

Mosses____have true rots, stems, or leaves.

Answer 16

do not

Question 17

The moss sporophyte is dependent on what?

Answer 17

the gametophyte

Question 18

Zygote in mosses is called?

Answer 18

archegonium

Question 19

Moss sex requires water

Answer 19

k

Question 20

Mosses are important in forming what?

Answer 20

soil

Question 21

Mosses hold soil in place and prevent ______.

Answer 21

erosion

Question 22

Peat moss is important economically.

Answer 22

k

Question 23

What is the scientific name for peat?

Answer 23

sphagnum

Question 24

Peat moss has large, dead___ that absorb and hold ____

Answer 24

cells

water

Question 25

What is the scientific name for liverwort?

Answer 25

Hepatophyta

Question 26

Many liverwort gametophyte are flattened, lobelike_______.

Answer 26

thalli

Question 27

Thallus (liverwort shape)

Answer 27

body form that is flattened, lobed structure

Question 28

Leafy (liverwort shape)

Answer 28

body form of leaflike blades

Question 29

Marchantia

Answer 29

thalloid liverwort

Question 30

______do not have stomata.

Answer 30

Liverworts

Question 31

Liverworts may reproduce sexually and _______

Answer 31

asexually

Question 32

What is a liverwort gemmae?

Answer 32

tiny balls of tissue borne in a saucer-shaped structure called a gemmae cup located on the thallus

Question 33

Gemmae are a form of______reproduction

Answer 33

asexual

Question 34

What is the scientific name for hornworts?

Answer 34

anthocerophyta

Question 35

Hornworts have______gametophytes.

Answer 35

thalloid

Question 36

Hornworts sporophyte forms a___or___ growing out of the thallus.

Answer 36

spike | horn

Question 37

Seedless vascular plants have a dominant ___ generation

Answer 37

sporophyte

Question 38

Seedless vascular plant sex requires water

Answer 38

k

Question 39

Seedless vascular plants have true_____.

Answer 39

leaves

Question 40

What are the 2 types of true leaves

Answer 40

Microphyll | Megaphyll

Question 41

Microphyll

Answer 41

small with a single vascualr strand

Question 42

Megaphyll

Answer 42

larger with more than 1 vascular strand

Question 43

Microphyll is only found in ______

Answer 43

club mosses

Question 44

What are the 2 phyla of seedless vascular plants? Give exs.

Answer 44

Lycopodiophyta- club mosses | Pteridophyta- ferns, whisk ferns, horsetails

Question 45

Club moss sporophytes consist of roots,_____, ____ branches, and microphylls.

Answer 45

rhizomes | errect

Question 46

Scientific name for club mosses

Answer 46

Lycopodium

Question 47

Club mosses are evergreens and sometimes are called what?

Answer 47

ground pines

Question 48

How tall do club mosses get?

Answer 48

less than 10 inches

Question 49

What is the largest and most diverse group of seedless vascular plants?

Answer 49

pteridophyta (ferns)

Question 50

What is a rhizome?

Answer 50

underground stem. Ferns have them

Question 51

Fern leaves (fronds) bear ______ in clusters (sori)

Answer 51

sporangia

Question 52

Fiddlehead

Answer 52

tightly coiled young frond just emerging from the ground

Question 53

Meiosis in sporangia produces ____ spores.

Answer 53

haploid

Question 54

Another name for fern gametophyte

Answer 54

prothallus

Question 55

The prothallus develops from what?

Answer 55

haploid spore

Question 56

The prothallus is tiny, often heart-shaped structure that grows flat against the _____.

Answer 56

ground

Question 57

The protallus bears both archegonia and antheridia.

Answer 57

k

Question 58

Whisk fern sporophytes have______ branching rhizomes and erect stems while lacking true ____ and leaves

Answer 58

dichotomously | roots

Question 59

Scientific name for whisk fern

Answer 59

psilotum

Question 60

Horsetail stems contain_____

Answer 60

silica

Question 61

Horsetail leaves are ___ which are fused in whorls at nodes.

Answer 61

megaphylls

Question 62

Scientific name for horsetails

Answer 62

equisetum

Question 63

Homospory

Answer 63

production of kind of spore

Question 64

What plants are homospory

Answer 64

bryophytes, most club mosses, most ferns

Question 65

In homospory plants spores give rise to_______plants

Answer 65

gametophyte

Question 66

Heterospory

Answer 66

production of 2 kinds of spores (microspores and megaspores)

Question 67

What plants are heterospory?

Answer 67

some club mosses and ferns, all seed plants

Question 68

Selaginella

Answer 68

a genus of club moss which is heterosporus

Question 69

microspores

Answer 69

produce male gametophyte

Question 70

megaspores

Answer 70

give rise to female gametophytes