Question 1

Asexual reproduction in hornworts occurs through which of the following?

Accepted Answer

A)  gemmae 
B)  buds 
C)  rhizomes 
D)  fragmentation or separation of lobes from the thallus 
E)  All of these answers are correct. 
A)  gemmae 
B)  buds 
C)  rhizomes 
D)  fragmentation or separation of lobes from the thallus 
E)  All of these answers are correct. D

Question 2

None of the mosses has any economic importance.

Accepted Answer

A) True 
 B)False  False

Question 3

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. D

Question 4

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 5

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 6

Each diamond-shaped segment of a liverwort thallus contains a single

Accepted Answer

A)  pore. 
B)  pair of guard cells. 
C)  chloroplast. 
D)  starch grain. 
E)  hydathode. 
A)  pore. 
B)  pair of guard cells. 
C)  chloroplast. 
D)  starch grain. 
E)  hydathode.

Question 7

An operculum is a part of the sporophyte generation of a moss.

Accepted Answer

A) True 
 B)False

Question 8

The ability of peat mosses to absorb water and their antiseptic qualities led to their use as ________ by early people.

Accepted Answer

A)  bandages 
B)  cloth 
C)  packing for shipping 
D)  food 
E)  All of these were early uses of peat mosses. 
A)  bandages 
B)  cloth 
C)  packing for shipping 
D)  food 
E)  All of these were early uses of peat mosses.

Question 9

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 10

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 11

The transition from an aquatic environment to a terrestrial environment required the development of ________, which kept plants from drying out when exposed to air.

Accepted Answer

A)  cuticle 
B)  photosynthesis 
C)  sexual reproduction 
D)  flagellated, motile cells 
E)  cell division 
A)  cuticle 
B)  photosynthesis 
C)  sexual reproduction 
D)  flagellated, motile cells 
E)  cell division

Question 12

Meiosis takes place in the stem of mosses.

Accepted Answer

A) True 
 B)False

Question 13

A moss protonema

Accepted Answer

A)  has diploid cells. 
B)  develops archegonia and antheridia. 
C)  produces paraphyses. 
D)  develops from a spore mother cell. 
E)  produces "leafy" buds. 
A)  has diploid cells. 
B)  develops archegonia and antheridia. 
C)  produces paraphyses. 
D)  develops from a spore mother cell. 
E)  produces "leafy" buds.

Question 14

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

Accepted Answer

A) True 
 B)False

Question 15

A moss calyptra

Accepted Answer

A)  has cells with 2n chromosomes. 
B)  functions primarily in directly covering the peristome. 
C)  is part of the sporophyte. 
D)  is always present as the spores are released. 
E)  originates from the archegonium. 
A)  has cells with 2n chromosomes. 
B)  functions primarily in directly covering the peristome. 
C)  is part of the sporophyte. 
D)  is always present as the spores are released. 
E)  originates from the archegonium.

Question 16

Capsules of mosses normally have xylem tissue.

Accepted Answer

A) True 
 B)False

Question 17

The elaters of liverworts and hornworts function in producing spores.

Accepted Answer

A) True 
 B)False

Question 18

Hydroids are specialized water conducting cells in some mosses that resemble hollow tubes; however, most water travels up the outside of the plant by capillarity.

Accepted Answer

A) True 
 B)False

Question 19

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 20

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.

Exam 20: Introduction to the Plant Kingdom: Bryophytes

Asexual reproduction in hornworts occurs through which of the following?

None of the mosses has any economic importance.

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

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

From an economic perspective the most important bryophytes are the

Each diamond-shaped segment of a liverwort thallus contains a single

An operculum is a part of the sporophyte generation of a moss.

The ability of peat mosses to absorb water and their antiseptic qualities led to their use as ________ by early people.

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

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

The transition from an aquatic environment to a terrestrial environment required the development of ________, which kept plants from drying out when exposed to air.

Meiosis takes place in the stem of mosses.

A moss protonema

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

A moss calyptra

Capsules of mosses normally have xylem tissue.

The elaters of liverworts and hornworts function in producing spores.

Hydroids are specialized water conducting cells in some mosses that resemble hollow tubes; however, most water travels up the outside of the plant by capillarity.

Food-conducting cells present in some mosses are known as

Which of the following bryophytes are generally edible?

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 Kingdom Bacteria, Domain Kingdom Archaea, 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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