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Campbell Mastering Biology Chapter 29 Questions

front 1

Which of the following statements about algae and plants is true?

back 1

Plants have a waxy, waterproof cuticle, and algae do not.

front 2

Which of the following homologies are shared by land plants and their closest living algal relatives?

back 2

-the formation of a group of microtubules between daughter nuclei during cell division
-the presence of peroxisomes
-the structure of flagellated sperm (when present)
-rings of cellulose-synthesizing complexes
(All of the listed responses are correct)

front 3

In moving to land, plants had to overcome which of the following challenges?

back 3

desiccation

front 4

Alternation of generations _____.

back 4

is distinguished by haploid and diploid stages that are both multicellular

front 5

Plants undergo alternation of generations in which _____.

back 5

the sporophyte generation alternates with the gametophyte generation

front 6

Gametangia are _________.

back 6

Single-celled algae, multicellular in most plants

front 7

In charophytes, _____ protect(s) zygotes from desiccation.

back 7

sporopollenin

front 8

Which is a key difference between alternation of generations in plants and sexual reproduction in nonplant organisms?

back 8

In plants, the haploid and diploid stages are both multicellular.

front 9

The development of the _____ prevents plants from drying out and protects them from microbes.

back 9

cuticle

front 10

Which example below is a clade of nonvascular plants?

back 10

bryophytes

front 11

Which term is most nearly synonymous with land plants?

back 11

embryophytes

front 12

A major division in plant systematics is based on whether a particular species has _____.

back 12

vascular tissue

front 13

The gametophyte stage of the plant life cycle is most conspicuous in _____.

back 13

mosses

front 14

When you see a green, "leafy" moss, you are looking at the _____.

back 14

gametophyte generation

front 15

Rhizoids _____.

back 15

anchor the gametophytes of bryophytes

front 16

Which of the following produces eggs and sperm?

back 16

moss gametophytes

front 17

Fertilization in moss occurs when sperm swim from a(n) _____ and down the neck of a(n) _____.

back 17

antheridium ... archegonium

front 18

The gametophyte generation of a moss _____.

back 18

is haploid

front 19

How are gametes produced by bryophytes?

back 19

by mitosis of gametophyte cells

front 20

In mosses, haploid _____ directly produce buds that grow into gametophores.

back 20

protonemata

front 21

Which structure of a bryophyte sporophyte is specialized for gradual spore discharge?

back 21

peristome

front 22

In which bryophyte structure specifically does a zygote develop into an embryo?

back 22

archegonium

front 23

What structures allow plants to readily take up carbon dioxide from the atmosphere?

back 23

stomata

front 24

Sphagnum is a _____ that forms extensive deposits of partially decayed organic material.

back 24

moss

front 25

In the life cycle of a fern, the multicellular male gametangium (the sex organ that produces sperm cells) is called a(n) _____.

back 25

antheridium

front 26

In the life cycle of ferns, the multicellular female gametangium (the sex organ that contains an egg) is a(n) _____.

back 26

archegonium

front 27

Ferns and mosses are limited mostly to moist environments because _____.

back 27

they have swimming sperm

front 28

What is the evolutionary significance of megaphylls?

back 28

They increase the surface area for photosynthesis.

front 29

The "dots" on the underside of a fern frond are spore cases; therefore, what is true of the plant to which the frond belongs?

back 29

It is a sporophyte.

front 30

Where would you find a fern gametophyte?

back 30

on moist soil

front 31

Fern gametophytes are _______________.

back 31

free-living, multicellular organisms

front 32

To examine meiosis in ferns, you would study _____.

back 32

the sporangia

front 33

Vascular tissues of plants include _____.

back 33

xylem for conducting water and minerals, and phloem for conducting dissolved organic molecules

front 34

Heterosporous plants produce _____.

back 34

megaspores that develop into female gametophytes and microspores that develop into male gametophytes

front 35

Sori can be found in which of the following?

back 35

pterophytes

front 36

In sporophyte ferns, the leaves are _____.

back 36

megaphylls

front 37

The first large forests formed in the Carboniferous Period. The drawdown of CO2 levels by all of these plants caused _____.

back 37

global cooling