Question 1

Which of the following statements about a stamen is FALSE?

Accepted Answer

A)  It is a microsporophyll. 
B)  It usually consists of an anther and a filament. 
C)  It contains four microsporangia. 
D)  It contains pollen sacs. 
E)  It is part of the gynoecium. 
A)  It is a microsporophyll. 
B)  It usually consists of an anther and a filament. 
C)  It contains four microsporangia. 
D)  It contains pollen sacs. 
E)  It is part of the gynoecium. E

Question 2

Sporopollenin protects the microgametophyte against UV radiation.

Accepted Answer

A) True 
 B)False  True

Question 3

A monoecious species has:

Accepted Answer

A)  flowers with all floral whorls. 
B)  floral parts united with other members of the same whorl. 
C)  floral parts united with members of other whorls. 
D)  staminate and carpellate flowers on the same plant. 
E)  staminate and carpellate flowers on different plants. 
A)  flowers with all floral whorls. 
B)  floral parts united with other members of the same whorl. 
C)  floral parts united with members of other whorls. 
D)  staminate and carpellate flowers on the same plant. 
E)  staminate and carpellate flowers on different plants. D

Question 4

If a single ovule is borne on a central column in an unpartitioned ovary, the placentation is described as parietal.

Accepted Answer

A) True 
 B)False

Question 5

The first flowering plants had a Polygonum type of embryo sac.

Accepted Answer

A) True 
 B)False

Question 6

The integuments envelope the nucellus except at the micropyle.

Accepted Answer

A) True 
 B)False

Question 7

As the seed develops, the ovary wall becomes the:

Accepted Answer

A)  perisperm. 
B)  pericarp. 
C)  endosperm. 
D)  nucellus. 
E)  integument. 
A)  perisperm. 
B)  pericarp. 
C)  endosperm. 
D)  nucellus. 
E)  integument.

Question 8

All the petals of a flower are collectively called the calyx.

Accepted Answer

A) True 
 B)False

Question 9

In the most common pattern of embryo sac development in angiosperms, how many nuclei end up at the chalazal end?

Accepted Answer

A)  1 
B)  3 
C)  5 
D)  7 
E)  9 
A)  1 
B)  3 
C)  5 
D)  7 
E)  9

Question 10

The most common type of megasporogenesis and megagametogenesis is the Polygonum type.

Accepted Answer

A) True 
 B)False

Question 11

When the microspore of an angiosperm divides, it gives rise directly to:

Accepted Answer

A)  two generative cells. 
B)  two tube cells. 
C)  two sperm cells. 
D)  a generative cell and a tube cell. 
E)  a sperm cell, a generative cell, and a tube cell. 
A)  two generative cells. 
B)  two tube cells. 
C)  two sperm cells. 
D)  a generative cell and a tube cell. 
E)  a sperm cell, a generative cell, and a tube cell.

Question 12

Which of the following statements about pollen grains is FALSE?

Accepted Answer

A)  They vary considerably in size and shape. 
B)  They differ in the number, arrangement, and shape of their apertures. 
C)  They provide insights into past climates. 
D)  They provide a means of identifying flowering plants. 
E)  They are poorly represented in the fossil record. 
A)  They vary considerably in size and shape. 
B)  They differ in the number, arrangement, and shape of their apertures. 
C)  They provide insights into past climates. 
D)  They provide a means of identifying flowering plants. 
E)  They are poorly represented in the fossil record.

Question 13

Which of the following statements concerning pollen grain apertures is FALSE?

Accepted Answer

A)  They are located in the intine. 
B)  They are preferential sites for pollen tube initiation. 
C)  They are sites of uptake of various substances. 
D)  They can expand and contract. 
E)  They help protect the pollen grain from drying out. 
A)  They are located in the intine. 
B)  They are preferential sites for pollen tube initiation. 
C)  They are sites of uptake of various substances. 
D)  They can expand and contract. 
E)  They help protect the pollen grain from drying out.

Question 14

Synergids produce chemicals that attract the pollen tube.

Accepted Answer

A) True 
 B)False

Question 15

In the process of pollination, the:

Accepted Answer

A)  anther dehisces, shedding its contents. 
B)  pollen passes from the anther to a stigma. 
C)  pollen tube grows through the style. 
D)  pollen tube enters the embryo sac. 
E)  sperm fertilizes an egg. 
A)  anther dehisces, shedding its contents. 
B)  pollen passes from the anther to a stigma. 
C)  pollen tube grows through the style. 
D)  pollen tube enters the embryo sac. 
E)  sperm fertilizes an egg.

Question 16

A flower that has only stamens and petals is:

Accepted Answer

A)  staminate and perfect. 
B)  perfect and complete. 
C)  perfect and incomplete. 
D)  imperfect and complete. 
E)  imperfect and incomplete. 
A)  staminate and perfect. 
B)  perfect and complete. 
C)  perfect and incomplete. 
D)  imperfect and complete. 
E)  imperfect and incomplete.

Question 17

Which of the following statements concerning transmitting tissue is FALSE?

Accepted Answer

A)  It is found within the style. 
B)  It guides the pollen tube toward the ovary. 
C)  The pollen tube grows out of the transmitting tissue at the funiculus. 
D)  It is classified as being either wet or dry. 
E)  The pollen tube grows between its cells. 
A)  It is found within the style. 
B)  It guides the pollen tube toward the ovary. 
C)  The pollen tube grows out of the transmitting tissue at the funiculus. 
D)  It is classified as being either wet or dry. 
E)  The pollen tube grows between its cells.

Question 18

In the process of double fertilization, one sperm fuses with the ______, and the other sperm fuses with the ______.

Accepted Answer

A)  egg; synergids 
B)  egg; polar nuclei 
C)  egg; antipodals 
D)  synergid; polar nuclei 
E)  synergid; antipodals 
A)  egg; synergids 
B)  egg; polar nuclei 
C)  egg; antipodals 
D)  synergid; polar nuclei 
E)  synergid; antipodals

Question 19

A flower that has both stamens and carpels but lacks sepals is described as imperfect and incomplete.

Accepted Answer

A) True 
 B)False

Question 20

The process of double fertilization occurs:

Accepted Answer

A)  only in angiosperms. 
B)  in all angiosperms and gymnosperms. 
C)  only in angiosperms and Ephedra. 
D)  only in angiosperms and Gnetum. 
E)  only in angiosperms, Ephedra, and Gnetum. 
A)  only in angiosperms. 
B)  in all angiosperms and gymnosperms. 
C)  only in angiosperms and Ephedra. 
D)  only in angiosperms and Gnetum. 
E)  only in angiosperms, Ephedra, and Gnetum.

Exam 19: Introduction to the Angiosperms

Which of the following statements about a stamen is FALSE?

Sporopollenin protects the microgametophyte against UV radiation.

A monoecious species has:

If a single ovule is borne on a central column in an unpartitioned ovary, the placentation is described as parietal.

The first flowering plants had a Polygonum type of embryo sac.

The integuments envelope the nucellus except at the micropyle.

As the seed develops, the ovary wall becomes the:

All the petals of a flower are collectively called the calyx.

In the most common pattern of embryo sac development in angiosperms, how many nuclei end up at the chalazal end?

The most common type of megasporogenesis and megagametogenesis is the Polygonum type.

When the microspore of an angiosperm divides, it gives rise directly to:

Which of the following statements about pollen grains is FALSE?

Which of the following statements concerning pollen grain apertures is FALSE?

Synergids produce chemicals that attract the pollen tube.

In the process of pollination, the:

A flower that has only stamens and petals is:

Which of the following statements concerning transmitting tissue is FALSE?

In the process of double fertilization, one sperm fuses with the ______, and the other sperm fuses with the ______.

A flower that has both stamens and carpels but lacks sepals is described as imperfect and incomplete.

The process of double fertilization occurs:

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

Bryophytes

Seedless Vascular Plants

Gymnosperms

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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In the process of double fertilization, one sperm fuses with the , and the other sperm fuses with the .