Question 1

The bryophytes whose sporophytes have a central rodlike axis surrounded by spore mother cells above a basal meristem are

Accepted Answer

A)  peat mosses. 
B)  true mosses. 
C)  bog mosses. 
D)  hornworts. 
E)  liverworts. 
A)  peat mosses. 
B)  true mosses. 
C)  bog mosses. 
D)  hornworts. 
E)  liverworts.

Question 2

Bryophytes

Accepted Answer

A)  have xylem and phloem. 
B)  all have relatively tiny "leaves." 
C)  produce their gametes in single-celled sex organs. 
D)  are mostly parasites of other plants. 
E)  need water present to undergo sexual reproduction. 
A)  have xylem and phloem. 
B)  all have relatively tiny "leaves." 
C)  produce their gametes in single-celled sex organs. 
D)  are mostly parasites of other plants. 
E)  need water present to undergo sexual reproduction.

Question 3

Which of the following bryophytes are generally edible?

Accepted Answer

A)  rock mosses 
B)  true mosses 
C)  peat mosses 
D)  liverworts 
E)  None of these answers are correct. 
A)  rock mosses 
B)  true mosses 
C)  peat mosses 
D)  liverworts 
E)  None of these answers are correct.

Question 4

All members of the plant kingdom have _______________.

Accepted Answer

A)  multicellular embryos 
B)  egg cells surrounded by a jacket of sterile cells 
C)  oogamous sexual reproduction 
D)  life cycle that includes both gametophyte and sporophyte generations 
E)  All of the above 
A)  multicellular embryos 
B)  egg cells surrounded by a jacket of sterile cells 
C)  oogamous sexual reproduction 
D)  life cycle that includes both gametophyte and sporophyte generations 
E)  All of the above

Question 5

A moss protonema

Accepted Answer

A)  has the n number of chromosomes in each cell. 
B)  is a part of the sporophyte generation. 
C)  produces gametes. 
D)  is saprophytic like a fungus. 
E)  produces spores. 
A)  has the n number of chromosomes in each cell. 
B)  is a part of the sporophyte generation. 
C)  produces gametes. 
D)  is saprophytic like a fungus. 
E)  produces spores.

Question 6

Growth in a thalloid liverwort is brought about by division of cells located

Accepted Answer

A)  at the rear of the thallus. 
B)  underneath the thallus. 
C)  along the margins of the thallus. 
D)  at the apical notch. 
E)  along the polygonal segments. 
A)  at the rear of the thallus. 
B)  underneath the thallus. 
C)  along the margins of the thallus. 
D)  at the apical notch. 
E)  along the polygonal segments.

Question 7

Structures with spiral thickenings that facilitate the release of spores from a liverwort capsule are

Accepted Answer

A)  gemmae. 
B)  elaters. 
C)  spore mother cells. 
D)  spiroids. 
E)  spore-ejectors. 
A)  gemmae. 
B)  elaters. 
C)  spore mother cells. 
D)  spiroids. 
E)  spore-ejectors.

Question 8

Which of the following moss sporophyte structures has the most direct contact with the gametophyte?

Accepted Answer

A)  operculum 
B)  peristome 
C)  foot 
D)  sporangium 
E)  seta 
A)  operculum 
B)  peristome 
C)  foot 
D)  sporangium 
E)  seta

Question 9

Food-conducting cells present in some mosses are known as

Accepted Answer

A)  hydroids. 
B)  leptoids. 
C)  sieve cells. 
D)  sieve-tube elements. 
E)  tracheoids. 
A)  hydroids. 
B)  leptoids. 
C)  sieve cells. 
D)  sieve-tube elements. 
E)  tracheoids.

Question 10

The three phyla in the bryophytes are thought to have been derived from a common ancestor.

Accepted Answer

A) True 
 B)False

Question 11

Which of the following is used commercially as a soil conditioner?

Accepted Answer

A)  Marchantia 
B)  Mnium 
C)  Cladonia 
D)  Sphagnum 
E)  Polytrichum 
A)  Marchantia 
B)  Mnium 
C)  Cladonia 
D)  Sphagnum 
E)  Polytrichum

Question 12

The egg of a moss is produced within a cavity called a

Accepted Answer

A)  ductlet. 
B)  vacuole. 
C)  venter. 
D)  capsule. 
E)  sporangium. 
A)  ductlet. 
B)  vacuole. 
C)  venter. 
D)  capsule. 
E)  sporangium.

Question 13

Capsules of mosses normally have xylem tissue.

Accepted Answer

A) True 
 B)False

Question 14

None of the mosses has any economic importance.

Accepted Answer

A) True 
 B)False

Question 15

Which of the following do "leaves" of mosses lack?

Accepted Answer

A)  stomata 
B)  petioles 
C)  mesophyll 
D)  veins 
E)  all of these answers are correct 
A)  stomata 
B)  petioles 
C)  mesophyll 
D)  veins 
E)  all of these answers are correct

Question 16

From an economic perspective the most important bryophytes are the

Accepted Answer

A)  liverworts. 
B)  rock mosses. 
C)  peat mosses. 
D)  hornworts. 
E)  true mosses. 
A)  liverworts. 
B)  rock mosses. 
C)  peat mosses. 
D)  hornworts. 
E)  true mosses.

Question 17

The sporophytes of common thalloid liverworts develop suspended above the thallus in or on gametophores.

Accepted Answer

A) True 
 B)False

Question 18

The pores and cavities of the thalli of liverworts are filled with

Accepted Answer

A)  air. 
B)  mucilage. 
C)  nitrogen-fixing blue-green bacteria. 
D)  food-storage cells. 
E)  reproductive cells. 
A)  air. 
B)  mucilage. 
C)  nitrogen-fixing blue-green bacteria. 
D)  food-storage cells. 
E)  reproductive cells.

Question 19

A unique feature of plants in the plant kingdom that is NOT shared with the green algae is _____.

Accepted Answer

A)  chlorophyll a and b 
B)  cell walls primarily of cellulose 
C)  multicellular gametangia 
D)  primary food reserve stored as starch 
E)  all of these features are found in both the plant kingdom and green algae 
A)  chlorophyll a and b 
B)  cell walls primarily of cellulose 
C)  multicellular gametangia 
D)  primary food reserve stored as starch 
E)  all of these features are found in both the plant kingdom and green algae

Question 20

The elaters of liverworts and hornworts function in producing spores.

Accepted Answer

A) True 
 B)False

Exam 20: Introduction to the Plant Kingdom: Bryophytes

The bryophytes whose sporophytes have a central rodlike axis surrounded by spore mother cells above a basal meristem are

Bryophytes

Which of the following bryophytes are generally edible?

All members of the plant kingdom have _______________.

A moss protonema

Growth in a thalloid liverwort is brought about by division of cells located

Structures with spiral thickenings that facilitate the release of spores from a liverwort capsule are

Which of the following moss sporophyte structures has the most direct contact with the gametophyte?

Food-conducting cells present in some mosses are known as

The three phyla in the bryophytes are thought to have been derived from a common ancestor.

Which of the following is used commercially as a soil conditioner?

The egg of a moss is produced within a cavity called a

Capsules of mosses normally have xylem tissue.

None of the mosses has any economic importance.

Which of the following do "leaves" of mosses lack?

From an economic perspective the most important bryophytes are the

The sporophytes of common thalloid liverworts develop suspended above the thallus in or on gametophores.

The pores and cavities of the thalli of liverworts are filled with

A unique feature of plants in the plant kingdom that is NOT shared with the green algae is _____.

The elaters of liverworts and hornworts function in producing spores.

What Is Plant Biology

The Nature of Life

Cells

Tissues

Roots and Soils

Stems

Leaves

Flowers, Fruits, and Seeds

Water in Plants

Plant Metabolism

Growth

Meiosis and Alternation of Generation

Genetics

Plant Breeding and Propagation

Evolution

Plant Names and Classification

Domain Kingdombacteria, Domain King-Domarchaea, and Viruses

Kingdom Protista

Kingdom Fungi

The Seedless Vascular Plants: Ferns and Their Relatives

Introduction to Seed Plants: Gymnosperms

Seed Plants: Angiosperms

Flowering Plants and Civilization

Ecology

Biomes

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