Question 1

By definition, a parthenocarpic fruit lacks:

Accepted Answer

A)  petals. 
B)  carpels. 
C)  receptacles. 
D)  seeds. 
E)  stamens. 
A)  petals. 
B)  carpels. 
C)  receptacles. 
D)  seeds. 
E)  stamens.

Question 2

Molecular evidence indicates the angiosperms are 125 million years old.

Accepted Answer

A) True 
 B)False

Question 3

An example of a secondary metabolite is caffeine.

Accepted Answer

A) True 
 B)False

Question 4

Which of the following is NOT an adaptation specific to wind-borne fruits or seeds?

Accepted Answer

A)  plume-like pappus 
B)  tissue with large air spaces 
C)  woolly hairs 
D)  wings 
E)  dust-like consistency 
A)  plume-like pappus 
B)  tissue with large air spaces 
C)  woolly hairs 
D)  wings 
E)  dust-like consistency

Question 5

Ultraviolet absorbance in flowers is related to the presence of:

Accepted Answer

A)  anthocyanins. 
B)  flavonols. 
C)  chlorophylls. 
D)  flavonoids. 
E)  carotenoids. 
A)  anthocyanins. 
B)  flavonols. 
C)  chlorophylls. 
D)  flavonoids. 
E)  carotenoids.

Question 6

The pollinium consists of the:

Accepted Answer

A)  anther and filament. 
B)  contents of an anther. 
C)  stamen fused with the stigma and style. 
D)  two lateral petals and the cuplike lip. 
E)  meristems used to clone orchids. 
A)  anther and filament. 
B)  contents of an anther. 
C)  stamen fused with the stigma and style. 
D)  two lateral petals and the cuplike lip. 
E)  meristems used to clone orchids.

Question 7

A _______, characteristic of the pea family and others, splits open at maturity into two or more one-seeded portions.

Accepted Answer

A)  cypsela 
B)  schizocarp 
C)  caryopsis 
D)  legume 
E)  silique 
A)  cypsela 
B)  schizocarp 
C)  caryopsis 
D)  legume 
E)  silique

Question 8

In most angiosperms, petals are probably evolutionary derivatives of:

Accepted Answer

A)  stamens. 
B)  sepals. 
C)  carpels. 
D)  receptacles. 
E)  peduncles. 
A)  stamens. 
B)  sepals. 
C)  carpels. 
D)  receptacles. 
E)  peduncles.

Question 9

Which of the following is NOT an evolutionary trend among flowers?

Accepted Answer

A)  from radial symmetry to bilateral symmetry 
B)  from unfused floral parts to fused floral parts 
C)  from an inferior ovary to a superior ovary 
D)  from an indefinite number of parts to a definite number of parts 
E)  from an undifferentiated perianth to one differentiated into a distinct calyx and corolla 
A)  from radial symmetry to bilateral symmetry 
B)  from unfused floral parts to fused floral parts 
C)  from an inferior ovary to a superior ovary 
D)  from an indefinite number of parts to a definite number of parts 
E)  from an undifferentiated perianth to one differentiated into a distinct calyx and corolla

Exam 20: Evolution of the Angiosperms

By definition, a parthenocarpic fruit lacks:

Molecular evidence indicates the angiosperms are 125 million years old.

An example of a secondary metabolite is caffeine.

Which of the following is NOT an adaptation specific to wind-borne fruits or seeds?

Ultraviolet absorbance in flowers is related to the presence of:

The pollinium consists of the:

A _______, characteristic of the pea family and others, splits open at maturity into two or more one-seeded portions.

In most angiosperms, petals are probably evolutionary derivatives of:

Which of the following is NOT an evolutionary trend among flowers?

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

Introduction to 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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