Question 1

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 2

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

Accepted Answer

A) True 
 B)False

Question 3

The central cell contains the egg apparatus.

Accepted Answer

A) True 
 B)False

Question 4

The mature megagametophyte consists of ______ nuclei and _____ cells.

Accepted Answer

A) 7; 7 
B) 7: 5 
C) 5; 7 
D) 7: 8 
E) 8; 7 
A) 7; 7 
B) 7: 5 
C) 5; 7 
D) 7: 8 
E) 8; 7

Question 5

The mature female gametophyte is called a(n):

Accepted Answer

A) embryo sac. 
B) nucellus. 
C) megasporangium. 
D) endosperm. 
E) ovule. 
A) embryo sac. 
B) nucellus. 
C) megasporangium. 
D) endosperm. 
E) ovule.

Question 6

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.

Question 7

The style connects the _____ to the ______.

Accepted Answer

A) anther; filament 
B) calyx; corolla 
C) androecium; gynoecium 
D) ovules; ovary 
E) ovary; stigma 
A) anther; filament 
B) calyx; corolla 
C) androecium; gynoecium 
D) ovules; ovary 
E) ovary; stigma

Question 8

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 9

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 10

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.

Question 11

Synergids produce chemicals that attract the pollen tube.

Accepted Answer

A) True 
 B)False

Question 12

In angiosperms, the mature female gametophyte consists of _____ cells.

Accepted Answer

A) 2 
B) 3 
C) 5 
D) 7 
E) 9 
A) 2 
B) 3 
C) 5 
D) 7 
E) 9

Question 13

The male germ unit consists of two sperms cells physically associated with the vegetative nucleus.

Accepted Answer

A) True 
 B)False

Question 14

______ are found at the chalazal end of the embryo sac.

Accepted Answer

A) Polar nuclei 
B) Synergids 
C) Eggs 
D) Ovules 
E) Antipodals 
A) Polar nuclei 
B) Synergids 
C) Eggs 
D) Ovules 
E) Antipodals

Question 15

The pedicel of a flower is:

Accepted Answer

A) a leaflike structure that contains the ovules. 
B) the part of the flower stalk to which flower parts are attached. 
C) the stalk of a flower or an inflorescence. 
D) the stalk of a flower in an inflorescence. 
E) the stalk that attaches an ovule to the ovary. 
A) a leaflike structure that contains the ovules. 
B) the part of the flower stalk to which flower parts are attached. 
C) the stalk of a flower or an inflorescence. 
D) the stalk of a flower in an inflorescence. 
E) the stalk that attaches an ovule to the ovary.

Question 16

The function of the endosperm is to provide ______ for the embryo.

Accepted Answer

A) support 
B) oxygen 
C) food 
D) water 
E) protection 
A) support 
B) oxygen 
C) food 
D) water 
E) protection

Question 17

In flowers with sepals, petals, and stamens attached below the ovary, the ovary is said to be:

Accepted Answer

A) hypogynous. 
B) epigynous. 
C) perigynous. 
D) superior. 
E) inferior. 
A) hypogynous. 
B) epigynous. 
C) perigynous. 
D) superior. 
E) inferior.

Question 18

In angiosperms, embryogeny begins with a free nuclear stage.

Accepted Answer

A) True 
 B)False

Question 19

The great majority of living angiosperms have mature embryo sacs consisting of seven cells and eight nuclei.

Accepted Answer

A) True 
 B)False

Question 20

The portion of a carpel that encloses the ovules is the:

Accepted Answer

A) style. 
B) stigma. 
C) ovary. 
D) placenta. 
E) funiculus. 
A) style. 
B) stigma. 
C) ovary. 
D) placenta. 
E) funiculus.

Exam 19: Introduction to the Angiosperms

In the process of pollination, the:

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

The central cell contains the egg apparatus.

The mature megagametophyte consists of ______ nuclei and _____ cells.

The mature female gametophyte is called a(n):

A monoecious species has:

The style connects the _____ to the ______.

Which of the following statements about pollen grains is FALSE?

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

The process of double fertilization occurs:

Synergids produce chemicals that attract the pollen tube.

In angiosperms, the mature female gametophyte consists of _____ cells.

The male germ unit consists of two sperms cells physically associated with the vegetative nucleus.

______ are found at the chalazal end of the embryo sac.

The pedicel of a flower is:

The function of the endosperm is to provide ______ for the embryo.

In flowers with sepals, petals, and stamens attached below the ovary, the ovary is said to be:

In angiosperms, embryogeny begins with a free nuclear stage.

The great majority of living angiosperms have mature embryo sacs consisting of seven cells and eight nuclei.

The portion of a carpel that encloses the ovules is the:

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

Filters

The mature megagametophyte consists of __ nuclei and _ cells.

The style connects the _ to the __.