Question 1

With regard to flowering plants, which statement is true?

Accepted Answer

A)  All angiosperms can be classified into one of two two groups: monocots or eudicots. 
B)  In terms of floral organization, radial symmetry is a more derived trait. 
C)  Pollination in angiosperms is mediated exclusively by animals or insect vectors. 
D)  Species that are dioecious do not have perfect flowers. 
E)  Carpels are derived from tepals. 
A)  All angiosperms can be classified into one of two two groups: monocots or eudicots. 
B)  In terms of floral organization, radial symmetry is a more derived trait. 
C)  Pollination in angiosperms is mediated exclusively by animals or insect vectors. 
D)  Species that are dioecious do not have perfect flowers. 
E)  Carpels are derived from tepals.

Question 2

Which statement about flowers is false?

Accepted Answer

A)  A flower bearing both megasporangia and microsporangia is considered perfect. 
B)  A cluster of flowers is called an inflorescence. 
C)  When male and female flowers occur on the same plant, the plant is said to be dioecious. 
D)  The stigma of the flower receives pollen. 
E)  The anthers of the flower produce pollen. 
A)  A flower bearing both megasporangia and microsporangia is considered perfect. 
B)  A cluster of flowers is called an inflorescence. 
C)  When male and female flowers occur on the same plant, the plant is said to be dioecious. 
D)  The stigma of the flower receives pollen. 
E)  The anthers of the flower produce pollen.

Question 3

You find a previously unknown seed plant species with palmlike leaves.The seeds are extremely toxic, and a close examination shows a lack of flowers.This plant is most likely a member of which group?

Accepted Answer

A)  Cycads 
B)  Ginkgos 
C)  Conifers 
D)  Gnetophytes 
E)  Angiosperms 
A)  Cycads 
B)  Ginkgos 
C)  Conifers 
D)  Gnetophytes 
E)  Angiosperms

Question 4

The _______ are the flowering plants.These plants produce seeds and have vessel elements and double fertilization.

Accepted Answer

The answer of The _______ are the flowering plants.These plants...

Question 5

Seed plants that have secondary growth are best characterized by the accumulation of additional

Accepted Answer

A)  phloem. 
B)  leaves. 
C)  roots. 
D)  petals. 
E)  xylem. 
A)  phloem. 
B)  leaves. 
C)  roots. 
D)  petals. 
E)  xylem.

Question 6

Bird-pollinated flowers

Accepted Answer

A)  hang low on plants. 
B)  have characteristic odors. 
C)  have nectar guides. 
D)  are always grouped in an inflorescence. 
E)  are often red and odorless. 
A)  hang low on plants. 
B)  have characteristic odors. 
C)  have nectar guides. 
D)  are always grouped in an inflorescence. 
E)  are often red and odorless.

Question 7

Refer to the figure.   What is the name of the floral part that receives pollen grains? Identify its label.

Accepted Answer

A)  Stigma (
A)  
B)  Ovary (
C)  
C)  Ovule (
D)  
D)  Anther (F) 
E)  Sepal (H) 
A)  Stigma (
A)  
B)  Ovary (
C)  
C)  Ovule (
D)  
D)  Anther (F) 
E)  Sepal (H)

Question 8

Which of the following represents the correct ordering of the events in the angiosperm life cycle?

Accepted Answer

A)  Division of diploid zygote F1F1F1S1F1F1F10 pollen grain reaches a sporophyte F1F1F1S1F1F1F10 fertilization F1F1F1S1F1F1F10 production of a pollen tube 
B)  Pollen grain reaches a sporophyte F1F1F1S1F1F1F10 production of a pollen tube F1F1F1S1F1F1F10 fertilization F1F1F1S1F1F1F10 division of diploid zygote 
C)  Pollen grain reaches a sporophyte F1F1F1S1F1F1F10 division of diploid zygote F1F1F1S1F1F1F10 production of a pollen tube F1F1F1S1F1F1F10 fertilization 
D)  Production of a pollen tube F1F1F1S1F1F1F10 fertilization F1F1F1S1F1F1F10 division of diploid zygote F1F1F1S1F1F1F10 pollen grain reaches a sporophyte 
E)  Fertilization F1F1F1S1F1F1F10 pollen grain reaches a sporophyte F1F1F1S1F1F1F10 production of a pollen tube F1F1F1S1F1F1F10 division of diploid zygote 
A)  Division of diploid zygote F1F1F1S1F1F1F10 pollen grain reaches a sporophyte F1F1F1S1F1F1F10 fertilization F1F1F1S1F1F1F10 production of a pollen tube 
B)  Pollen grain reaches a sporophyte F1F1F1S1F1F1F10 production of a pollen tube F1F1F1S1F1F1F10 fertilization F1F1F1S1F1F1F10 division of diploid zygote 
C)  Pollen grain reaches a sporophyte F1F1F1S1F1F1F10 division of diploid zygote F1F1F1S1F1F1F10 production of a pollen tube F1F1F1S1F1F1F10 fertilization 
D)  Production of a pollen tube F1F1F1S1F1F1F10 fertilization F1F1F1S1F1F1F10 division of diploid zygote F1F1F1S1F1F1F10 pollen grain reaches a sporophyte 
E)  Fertilization F1F1F1S1F1F1F10 pollen grain reaches a sporophyte F1F1F1S1F1F1F10 production of a pollen tube F1F1F1S1F1F1F10 division of diploid zygote

Question 9

Which plant group was the first to develop extensively thickened woody stems?

Accepted Answer

A)  Lycopods 
B)  Conifers 
C)  Ginkgos 
D)  Progymnosperms 
E)  Angiosperms 
A)  Lycopods 
B)  Conifers 
C)  Ginkgos 
D)  Progymnosperms 
E)  Angiosperms

Question 10

Which generation in the life cycle of a flowering plant produces the sperm?

Accepted Answer

A)  Megagametophyte 
B)  Microgametophyte 
C)  Sporophyte 
D)  Integument 
E)  Micropyle 
A)  Megagametophyte 
B)  Microgametophyte 
C)  Sporophyte 
D)  Integument 
E)  Micropyle

Question 11

A friend gives you a seed of unknown origin.After the seed germinates, you note that only one cotyledon has emerged.Based on this information you conclude that the plant

Accepted Answer

A)  is likely a gymnosperm. 
B)  is likely a eudicot. 
C)  is likely a monocot. 
D)  is closely related to ancestral angiosperms. 
E)  will most likely produce flowers with radial symmetry. 
A)  is likely a gymnosperm. 
B)  is likely a eudicot. 
C)  is likely a monocot. 
D)  is closely related to ancestral angiosperms. 
E)  will most likely produce flowers with radial symmetry.

Question 12

The dominant part of the life cycle in seed plants is the

Accepted Answer

A)  sporophyte. 
B)  gametophyte. 
C)  megagametophyte. 
D)  megastrobilus. 
E)  microstrobilus. 
A)  sporophyte. 
B)  gametophyte. 
C)  megagametophyte. 
D)  megastrobilus. 
E)  microstrobilus.

Question 13

The modified leaves on a flower that are often showy, in order to attract animal pollinators are called _______.

Accepted Answer

The answer of The modified leaves on a flower that...

Question 14

Tightly closed cones in some conifers open in response to

Accepted Answer

A)  drought. 
B)  flooding. 
C)  fire. 
D)  darkness. 
E)  frost. 
A)  drought. 
B)  flooding. 
C)  fire. 
D)  darkness. 
E)  frost.

Question 15

Which group includes a species that has male and female trees in which the sex is determined by sex chromosomes?

Accepted Answer

A)  Cycads 
B)  Gnetophytes 
C)  Conifers 
D)  Ginkgos 
E)  No groups of gymnosperms have this characteristic. 
A)  Cycads 
B)  Gnetophytes 
C)  Conifers 
D)  Ginkgos 
E)  No groups of gymnosperms have this characteristic.

Question 16

A member of your research group isolates a mutant plant from a species with perfect flowers, but this plant does not produce sporopollenin.He would like to further characterize this mutant by studying its offspring.What do you tell him?

Accepted Answer

A)  It will be impossible to study the offspring of this mutant, because it will not be able to develop seed coats to protect its seeds. 
B)  It will be impossible to study the offspring of this mutant, because the pollen will not be protected from desiccation and will not be viable. 
C)  This mutant will only produce offspring if it is pollinated it with pollen from a nonmutant plant of the same species. 
D)  This mutant will only produce offspring if you use its pollen to fertilize a plant with a functional sporopollenin gene. 
E)  This mutant should be able to produce viable offspring if the flowers are self-pollinated. 
A)  It will be impossible to study the offspring of this mutant, because it will not be able to develop seed coats to protect its seeds. 
B)  It will be impossible to study the offspring of this mutant, because the pollen will not be protected from desiccation and will not be viable. 
C)  This mutant will only produce offspring if it is pollinated it with pollen from a nonmutant plant of the same species. 
D)  This mutant will only produce offspring if you use its pollen to fertilize a plant with a functional sporopollenin gene. 
E)  This mutant should be able to produce viable offspring if the flowers are self-pollinated.

Question 17

Which of the following is not likely to have resulted from coevolution between an angiosperm and an animal?

Accepted Answer

A)  A flower with a long nectar spur 
B)  A flower with reduced petals that allow wind access to its pollen 
C)  A flower with bright red petals and no odor 
D)  A flower with broad petals on which insects land 
E)  A flower with a strong rotting meat odor 
A)  A flower with a long nectar spur 
B)  A flower with reduced petals that allow wind access to its pollen 
C)  A flower with bright red petals and no odor 
D)  A flower with broad petals on which insects land 
E)  A flower with a strong rotting meat odor

Question 18

The innovation that allowed seed plants to reproduce successfully across much of the terrestrial landscape was the use of _______ to distribute male gametes.

Accepted Answer

The answer of The innovation that allowed seed plants to...

Question 19

What part of the embryo is both leaflike and partly a storage organ?

Accepted Answer

A)  Stamen 
B)  Pollen grain 
C)  Apical meristem 
D)  Endosperm 
E)  Cotyledon 
A)  Stamen 
B)  Pollen grain 
C)  Apical meristem 
D)  Endosperm 
E)  Cotyledon

Exam 28: The Evolution of Seed Plants

With regard to flowering plants, which statement is true?

Which statement about flowers is false?

You find a previously unknown seed plant species with palmlike leaves.The seeds are extremely toxic, and a close examination shows a lack of flowers.This plant is most likely a member of which group?

The _______ are the flowering plants.These plants produce seeds and have vessel elements and double fertilization.

Seed plants that have secondary growth are best characterized by the accumulation of additional

Bird-pollinated flowers

Refer to the figure. What is the name of the floral part that receives pollen grains? Identify its label.

Which of the following represents the correct ordering of the events in the angiosperm life cycle?

Which plant group was the first to develop extensively thickened woody stems?

Which generation in the life cycle of a flowering plant produces the sperm?

A friend gives you a seed of unknown origin.After the seed germinates, you note that only one cotyledon has emerged.Based on this information you conclude that the plant

The dominant part of the life cycle in seed plants is the

The modified leaves on a flower that are often showy, in order to attract animal pollinators are called _______.

Tightly closed cones in some conifers open in response to

Which group includes a species that has male and female trees in which the sex is determined by sex chromosomes?

A member of your research group isolates a mutant plant from a species with perfect flowers, but this plant does not produce sporopollenin.He would like to further characterize this mutant by studying its offspring.What do you tell him?

Which of the following is not likely to have resulted from coevolution between an angiosperm and an animal?

The innovation that allowed seed plants to reproduce successfully across much of the terrestrial landscape was the use of _______ to distribute male gametes.

What part of the embryo is both leaflike and partly a storage organ?

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Cells: the Working Units of Life

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The Cell Cycle and Cell Division

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From Dna to Protein: Gene Expression

Gene Mutation and Molecular Medicine

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Plants Without Seeds: From Water to Land

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