Question 1

The function of elaters is to:

Accepted Answer

A)  help disperse spores. 
B)  help disperse gemmae. 
C)  strengthen the spore wall. 
D)  conduct water and nutrients through the plant body. 
E)  support the archegoniophores. 
A)  help disperse spores. 
B)  help disperse gemmae. 
C)  strengthen the spore wall. 
D)  conduct water and nutrients through the plant body. 
E)  support the archegoniophores. A

Question 2

The sporophytes of mosses are commonly associated with cyanobacteria.

Accepted Answer

A) True 
 B)False  True

Question 3

Which of the following is NOT a group of mosses of phylum Bryophyta?

Accepted Answer

A)  Peat mosses 
B)  Granite mosses 
C)  Club mosses 
D)  Bryidae 
E)  Andreaeidae 
A)  Peat mosses 
B)  Granite mosses 
C)  Club mosses 
D)  Bryidae 
E)  Andreaeidae C

Question 4

Gemmae and gemma cups are directly involved in sexual reproduction.

Accepted Answer

A) True 
 B)False

Question 5

The sporophyte epidermis of mosses contains stomata that resemble the stomata of vascular plants.

Accepted Answer

A) True 
 B)False

Question 6

Which of the following statements about bryophytes is FALSE?

Accepted Answer

A)  They lack xylem and phloem. 
B)  The cell walls of their water-conducting cells are lignified. 
C)  They exhibit alternating heteromorphic generations. 
D)  The sporophyte is usually nutritionally dependent on the gametophyte. 
E)  The gametophyte is usually larger than the sporophyte. 
A)  They lack xylem and phloem. 
B)  The cell walls of their water-conducting cells are lignified. 
C)  They exhibit alternating heteromorphic generations. 
D)  The sporophyte is usually nutritionally dependent on the gametophyte. 
E)  The gametophyte is usually larger than the sporophyte.

Question 7

The ______ is embedded in the archegonium.

Accepted Answer

A)  foot 
B)  seta 
C)  capsule 
D)  neck canal 
E)  sporangium 
A)  foot 
B)  seta 
C)  capsule 
D)  neck canal 
E)  sporangium

Question 8

In bryophytes, sperm must swim through water to reach the egg.

Accepted Answer

A) True 
 B)False

Question 9

Which of the following statements concerning the transport of nutrients from the gametophyte to the embryo is FALSE?

Accepted Answer

A)  Transport is apoplastic. 
B)  Transport is facilitated by the placenta. 
C)  Transport occurs via plasmodesmata. 
D)  The archegonium provides sugars to the embryo. 
E)  The archegonium provides amino acids to the embryo. 
A)  Transport is apoplastic. 
B)  Transport is facilitated by the placenta. 
C)  Transport occurs via plasmodesmata. 
D)  The archegonium provides sugars to the embryo. 
E)  The archegonium provides amino acids to the embryo.

Question 10

The protonema of Sphagnum consists of ______ of cells.

Accepted Answer

A)  a single row 
B)  two or more rows 
C)  a two-layer-thick plate 
D)  a one-layer-thick plate 
E)  two overlapping plates 
A)  a single row 
B)  two or more rows 
C)  a two-layer-thick plate 
D)  a one-layer-thick plate 
E)  two overlapping plates

Question 11

Ambuchanania and Sphagnum are the two genera in the class Sphagnidae.

Accepted Answer

A) True 
 B)False

Question 12

Peat mosses normally release hydroxide ions, thereby raising the pH of their environment.

Accepted Answer

A) True 
 B)False

Question 13

In the Bryidae, gametophytes are borne on the sporophytes.

Accepted Answer

A) True 
 B)False

Question 14

Some hornwort species form a symbiotic relationship with nitrogen-fixing bacteria.

Accepted Answer

A) True 
 B)False

Question 15

In the liverworts, an androecium is a:

Accepted Answer

A)  structure producing sperm. 
B)  group of water-conducting cells. 
C)  short side branch bearing antheridia. 
D)  tubular sheath surrounding the archegonium. 
E)  structure of the gemma cup. 
A)  structure producing sperm. 
B)  group of water-conducting cells. 
C)  short side branch bearing antheridia. 
D)  tubular sheath surrounding the archegonium. 
E)  structure of the gemma cup.

Question 16

When the cells of the ________ disintegrate, they form a tube through which sperm move to the egg.

Accepted Answer

A)  neck canal 
B)  capsule 
C)  calyptra 
D)  venter 
E)  placenta 
A)  neck canal 
B)  capsule 
C)  calyptra 
D)  venter 
E)  placenta

Question 17

After they germinate, bryophyte spores first give rise to:

Accepted Answer

A)  hyphae. 
B)  archegonia. 
C)  rhizoids. 
D)  protonema. 
E)  antheridia. 
A)  hyphae. 
B)  archegonia. 
C)  rhizoids. 
D)  protonema. 
E)  antheridia.

Question 18

In contrast to the ventral portion, the dorsal portion of a thalloid liverwort:

Accepted Answer

A)  contains rhizoids. 
B)  contains scales. 
C)  is thicker. 
D)  contains chlorophyll. 
E)  is colorless. 
A)  contains rhizoids. 
B)  contains scales. 
C)  is thicker. 
D)  contains chlorophyll. 
E)  is colorless.

Question 19

Matrotrophy refers to the:

Accepted Answer

A)  attraction of sperm by the egg. 
B)  nourishment of the zygote by the archegonium. 
C)  transport of sugars through the placenta. 
D)  division of the zygote within the venter. 
E)  movement of sugars through plasmodesmata. 
A)  attraction of sperm by the egg. 
B)  nourishment of the zygote by the archegonium. 
C)  transport of sugars through the placenta. 
D)  division of the zygote within the venter. 
E)  movement of sugars through plasmodesmata.

Question 20

The upper portion of a thalloid liverwort is thinner than the lower portion.

Accepted Answer

A) True 
 B)False

Exam 16: Bryophytes

The function of elaters is to:

The sporophytes of mosses are commonly associated with cyanobacteria.

Which of the following is NOT a group of mosses of phylum Bryophyta?

Gemmae and gemma cups are directly involved in sexual reproduction.

The sporophyte epidermis of mosses contains stomata that resemble the stomata of vascular plants.

Which of the following statements about bryophytes is FALSE?

The ______ is embedded in the archegonium.

In bryophytes, sperm must swim through water to reach the egg.

Which of the following statements concerning the transport of nutrients from the gametophyte to the embryo is FALSE?

The protonema of Sphagnum consists of ______ of cells.

Ambuchanania and Sphagnum are the two genera in the class Sphagnidae.

Peat mosses normally release hydroxide ions, thereby raising the pH of their environment.

In the Bryidae, gametophytes are borne on the sporophytes.

Some hornwort species form a symbiotic relationship with nitrogen-fixing bacteria.

In the liverworts, an androecium is a:

When the cells of the ________ disintegrate, they form a tube through which sperm move to the egg.

After they germinate, bryophyte spores first give rise to:

In contrast to the ventral portion, the dorsal portion of a thalloid liverwort:

Matrotrophy refers to the:

The upper portion of a thalloid liverwort is thinner than the lower portion.

Botany: an Introduction

The Molecular Composition of Plant Cells

The Plant Cell and the Cell Cycle

The Movement of Substances Into and Out of Cells

The Flow of Energy

Respiration

Photosynthesis, Light, and Life

Sexual Reproduction and Heredity

The Chemistry of Heredity and Gene Expression

Recombinant Dna Technology, Plant Biotechnology, and Genomics

The Process of Evolution

Systematics: the Science of Biological Diversity

Prokaryotes and Viruses

Fungi

Protists: Algae and Heterotrophic Protists

Seedless Vascular Plants

Gymnosperms

Introduction to the Angiosperms

Evolution of the Angiosperms

Plants and People

Early Development of the Plant Body

Cells and Tissues of the Plant Body

The Root: Structure and Development

The Shoot: Primary Structure and Development

Secondary Growth in Stems

Regulating Growth and Development: the Plant Hormones

External Factors and Plant Growth

Plant Nutrition and Soils

The Movement of Water and Solutes in Plants

The Dynamics of Communities and Ecosystems

Global Ecology

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