Question 1

The seed from an ovule lacking an integument is unlikely to form

Accepted Answer

A)  an endosperm. 
B)  a seed coat. 
C)  an embryo. 
D)  a cuticle. 
E)  nutritive tissue. 
A)  an endosperm. 
B)  a seed coat. 
C)  an embryo. 
D)  a cuticle. 
E)  nutritive tissue.

Question 2

Strawberries, apples, and pears have parts other than the carpel and seeds and are thus considered to be

Accepted Answer

A)  aggregate fruits. 
B)  accessory fruits. 
C)  multiple fruits. 
D)  simple fruits. 
E)  drupes. 
A)  aggregate fruits. 
B)  accessory fruits. 
C)  multiple fruits. 
D)  simple fruits. 
E)  drupes.

Question 3

In conifers, the primary role of _______ gametophytes is to convey the sperm nuclei to the egg, permitting fusion of the two, also known as fertilization, after which the female gametophyte nourishes the developing embryo.

Accepted Answer

The answer of In conifers, the primary role of _______...

Question 4

Which group has the greatest number of species?

Accepted Answer

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

Question 5

Carpels most likely evolved from

Accepted Answer

A)  seeds. 
B)  roots. 
C)  stems. 
D)  leaves. 
E)  stamens. 
A)  seeds. 
B)  roots. 
C)  stems. 
D)  leaves. 
E)  stamens.

Question 6

Which drug is a chemotherapeutic agent derived from Pacific yew that is used in fighting breast and ovarian cancers?

Accepted Answer

A)  Atropine 
B)  Bromelain 
C)  Menthol 
D)  Taxol 
E)  Digitalin 
A)  Atropine 
B)  Bromelain 
C)  Menthol 
D)  Taxol 
E)  Digitalin

Question 7

Which statement regarding plants is false?

Accepted Answer

A)  They are primary producers. 
B)  They modify Earth's atmosphere. 
C)  They decrease humidity. 
D)  They decrease soil erosion. 
E)  They are sources of medicines. 
A)  They are primary producers. 
B)  They modify Earth's atmosphere. 
C)  They decrease humidity. 
D)  They decrease soil erosion. 
E)  They are sources of medicines.

Question 8

In your attempt to identify an unfamiliar plant, which trait would help you identify it as an angiosperm rather than a gymnosperm?

Accepted Answer

A)  Flowers 
B)  Pollen 
C)  Vascular tissue 
D)  Needlelike leaves 
E)  Seeds 
A)  Flowers 
B)  Pollen 
C)  Vascular tissue 
D)  Needlelike leaves 
E)  Seeds

Question 9

A plant structure containing sporopollenin is most likely to be resistant to _______ and _______.

Accepted Answer

A)  cracking; UV damage 
B)  drying; chemical damage 
C)  drying; UV damage 
D)  chemical damage; UV damage 
E)  cracking; digestion 
A)  cracking; UV damage 
B)  drying; chemical damage 
C)  drying; UV damage 
D)  chemical damage; UV damage 
E)  cracking; digestion

Question 10

More than half of the world's population derives the bulk of its calories from which plant?

Accepted Answer

A)  Triticum spp. (wheat) 
B)  Solanum tuberosum (potato) 
C)  Oryza sativa (rice) 
D)  Zea mays (corn) 
E)  Glycine max (soybean) 
A)  Triticum spp. (wheat) 
B)  Solanum tuberosum (potato) 
C)  Oryza sativa (rice) 
D)  Zea mays (corn) 
E)  Glycine max (soybean)

Question 11

Moths visit night-blooming cereus flowers in the evening and pass pollen from one flower to another while collecting nectar.Once in contact with a stigma, these pollen grains germinate into tubes and extend through the maternal sporophyte tissue to the female gametophyte, where two sperm cells are released.Which statement accurately describes the process that ensues once the sperm cells meet the female gametophyte?

Accepted Answer

A)  Once the sperm and egg nucleus fuse, pollination occurs and a zygote forms. 
B)  Once one of the sperm nuclei and the egg nucleus fuse, fertilization occurs and the second sperm cell degenerates. 
C)  Once the pollen tube reaches the female gametophyte, one of the sperm cells fertilizes the egg, and the other fertilizes the polar nuclei. 
D)  Once the pollen tube reaches the female gametophyte, one of the sperm cells fertilizes the egg, and the other pollinates the polar nuclei. 
E)  Once the pollen tube reaches the female gametophyte, one of the sperm cells pollinates the egg, and the other fertilizes the polar nuclei. 
A)  Once the sperm and egg nucleus fuse, pollination occurs and a zygote forms. 
B)  Once one of the sperm nuclei and the egg nucleus fuse, fertilization occurs and the second sperm cell degenerates. 
C)  Once the pollen tube reaches the female gametophyte, one of the sperm cells fertilizes the egg, and the other fertilizes the polar nuclei. 
D)  Once the pollen tube reaches the female gametophyte, one of the sperm cells fertilizes the egg, and the other pollinates the polar nuclei. 
E)  Once the pollen tube reaches the female gametophyte, one of the sperm cells pollinates the egg, and the other fertilizes the polar nuclei.

Question 12

You examine material from an unidentified plant and notice features indicating it is a woody gymnosperm.You can safely guess that the woody stems are the product _______ growth?

Accepted Answer

A)  tubal 
B)  primary 
C)  tertiary 
D)  laminar 
E)  secondary 
A)  tubal 
B)  primary 
C)  tertiary 
D)  laminar 
E)  secondary

Question 13

Refer to the figure.   Structure A is a

Accepted Answer

A)  gall. 
B)  fascicle. 
C)  root cap. 
D)  male cone. 
E)  female cone. 
A)  gall. 
B)  fascicle. 
C)  root cap. 
D)  male cone. 
E)  female cone.

Question 14

Refer to the figure, which shows the evolutionary relationships among the angiosperms.   If you discovered a new plant with fused carpel margins but only one perianth whorl, the plant would belong to which group shown?

Accepted Answer

A)  Monocots 
B)  Eudicots 
C)  Magnoliids 
D)  Water lilies 
E)  Star anise 
A)  Monocots 
B)  Eudicots 
C)  Magnoliids 
D)  Water lilies 
E)  Star anise

Question 15

Refer to the figure.   Label the parts of the flower indicated.

Accepted Answer

a. Pollen tube
b. Anther
c. Fi

Question 16

_______ are not classified as a gymnosperms.

Accepted Answer

A)  Conifers 
B)  Cycads 
C)  Gnetophytes 
D)  Ginkgos 
E)  Flowering plants 
A)  Conifers 
B)  Cycads 
C)  Gnetophytes 
D)  Ginkgos 
E)  Flowering plants

Question 17

The two largest groups of living angiosperms are the _______ and _______.

Accepted Answer

A)  monocots; magnoliids 
B)  magnoliids; cacti 
C)  monocots; cacti 
D)  monocots; eudicots 
E)  magnoliids; eudicots 
A)  monocots; magnoliids 
B)  magnoliids; cacti 
C)  monocots; cacti 
D)  monocots; eudicots 
E)  magnoliids; eudicots

Question 18

If you were in Asia being eating a native diet, which plant would likely be providing most of your daily calories?

Accepted Answer

A)  Triticum spp. (wheat) 
B)  Solanum tuberosum (potato) 
C)  Oryza sativa (rice) 
D)  Zea mays (corn) 
E)  Glycine max (soybean) 
A)  Triticum spp. (wheat) 
B)  Solanum tuberosum (potato) 
C)  Oryza sativa (rice) 
D)  Zea mays (corn) 
E)  Glycine max (soybean)

Question 19

Why are plants such as the Pacific yew not harvested as extensively as they were in the past?

Accepted Answer

A)  Nearly all Pacific yew plants have already been harvested. 
B)  The medically active ingredient can now be synthesized. 
C)  The active ingredient from Pacific yew is no longer effective. 
D)  Pacific yew plants have evolved to produce less of the active ingredient. 
E)  The relevant medical conditions are no longer a problem. 
A)  Nearly all Pacific yew plants have already been harvested. 
B)  The medically active ingredient can now be synthesized. 
C)  The active ingredient from Pacific yew is no longer effective. 
D)  Pacific yew plants have evolved to produce less of the active ingredient. 
E)  The relevant medical conditions are no longer a problem.

Question 20

The oldest known living individual gymnosperm comes from which group?

Accepted Answer

A)  Cycads 
B)  Conifers 
C)  Gnetophytes 
D)  Seed ferns 
E)  Ginkgos 
A)  Cycads 
B)  Conifers 
C)  Gnetophytes 
D)  Seed ferns 
E)  Ginkgos

Exam 28: The Evolution of Seed Plants

The seed from an ovule lacking an integument is unlikely to form

Strawberries, apples, and pears have parts other than the carpel and seeds and are thus considered to be

In conifers, the primary role of _______ gametophytes is to convey the sperm nuclei to the egg, permitting fusion of the two, also known as fertilization, after which the female gametophyte nourishes the developing embryo.

Which group has the greatest number of species?

Carpels most likely evolved from

Which drug is a chemotherapeutic agent derived from Pacific yew that is used in fighting breast and ovarian cancers?

Which statement regarding plants is false?

In your attempt to identify an unfamiliar plant, which trait would help you identify it as an angiosperm rather than a gymnosperm?

A plant structure containing sporopollenin is most likely to be resistant to _______ and _______.

More than half of the world's population derives the bulk of its calories from which plant?

You examine material from an unidentified plant and notice features indicating it is a woody gymnosperm.You can safely guess that the woody stems are the product _______ growth?

Refer to the figure. Structure A is a

Refer to the figure, which shows the evolutionary relationships among the angiosperms. If you discovered a new plant with fused carpel margins but only one perianth whorl, the plant would belong to which group shown?

Refer to the figure. Label the parts of the flower indicated.

_______ are not classified as a gymnosperms.

The two largest groups of living angiosperms are the _______ and _______.

If you were in Asia being eating a native diet, which plant would likely be providing most of your daily calories?

Why are plants such as the Pacific yew not harvested as extensively as they were in the past?

The oldest known living individual gymnosperm comes from which group?

Studying Life

Small Molecules and the Chemistry of Life

Proteins, Carbohydrates, and Lipids

Nucleic Acids and the Origin of Life

Cells: the Working Units of Life

Cell Membranes

Cell Communication and Multicellularity

Energy, Enzymes, and Metabolism

Pathways That Harvest Chemical Energy

Photosynthesis: Energy From Sunlight

The Cell Cycle and Cell Division

Inheritance, Genes, and Chromosomes

Dna and Its Role in Heredity

From Dna to Protein: Gene Expression

Gene Mutation and Molecular Medicine

Regulation of Gene Expression

Genomes

Recombinant Dna and Biotechnology

Mechanisms of Evolution

Reconstructing and Using Phylogenies

Speciation

Evolution of Genes and Genomes

The History of Life on Earth

Bacteria, Archaea, and Viruses

The Origin and Diversification of Eukaryotes

Plants Without Seeds: From Water to Land

The Evolution and Diversity of Fungi

Animal Origins and the Evolution of Body Plans

Protostome Animals

Deuterostome Animals

The Plant Body

Transport in Plants

Plant Nutrition

Regulation of Plant Growth

Reproduction in Flowering Plants

Plant Responses to Environmental Challenges

Physiology, Homeostasis, and Temperature Regulation

Animal Hormones

Immunology: Animal Defense Systems

Animal Reproduction

Animal Development

Neurons, Glia, and Nervous Systems

Sensory Systems

The Mammalian Nervous System: Structure and Higher Functions

Musculoskeletal Systems

Gas Exchange

Circulatory Systems

Nutrition, Digestion, and Absorption

Salt and Water Balance and Nitrogen Excretion

Animal Behavior

The Physical Environment and Biogeography of Life

Populations

Species Interactions

Communities

Ecosystems

A Changing Biosphere

Filters

A plant structure containing sporopollenin is most likely to be resistant to _ and _.

The two largest groups of living angiosperms are the _ and _.