Campbell Mastering Biology Chapter 29 Questions

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Campbell Biology
Chapter 29
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1

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

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

2

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

-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)

3

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

desiccation

4

Alternation of generations _____.

is distinguished by haploid and diploid stages that are both multicellular

5

Plants undergo alternation of generations in which _____.

the sporophyte generation alternates with the gametophyte generation

6

Gametangia are _________.

Single-celled algae, multicellular in most plants

7

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

sporopollenin

8

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

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

9

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

cuticle

10

Which example below is a clade of nonvascular plants?

bryophytes

11

Which term is most nearly synonymous with land plants?

embryophytes

12

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

vascular tissue

13

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

mosses

14

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

gametophyte generation

15

Rhizoids _____.

anchor the gametophytes of bryophytes

16

Which of the following produces eggs and sperm?

moss gametophytes

17

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

antheridium ... archegonium

18

The gametophyte generation of a moss _____.

is haploid

19

How are gametes produced by bryophytes?

by mitosis of gametophyte cells

20

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

protonemata

21

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

peristome

22

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

archegonium

23

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

stomata

24

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

moss

25

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

antheridium

26

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

archegonium

27

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

they have swimming sperm

28

What is the evolutionary significance of megaphylls?

They increase the surface area for photosynthesis.

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?

It is a sporophyte.

30

Where would you find a fern gametophyte?

on moist soil

31

Fern gametophytes are _______________.

free-living, multicellular organisms

32

To examine meiosis in ferns, you would study _____.

the sporangia

33

Vascular tissues of plants include _____.

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

34

Heterosporous plants produce _____.

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

35

Sori can be found in which of the following?

pterophytes

36

In sporophyte ferns, the leaves are _____.

megaphylls

37

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

global cooling