Question 1

Lycophytes have _______, while monilophytes have _______.

Accepted Answer

A)  spores; seeds 
B)  tracheids; phloem 
C)  roots; rhizomes 
D)  sperm with flagella; sperm without flagella 
E)  microphylls; megaphylls 
A)  spores; seeds 
B)  tracheids; phloem 
C)  roots; rhizomes 
D)  sperm with flagella; sperm without flagella 
E)  microphylls; megaphylls

Question 2

Selaginella is a heterosporous lycophyte.If you want to study Selaginella gametophyte structure, the most important reason why you must collect more than one sample is

Accepted Answer

A)  to ensure genetic diversity in your sample. 
B)  because the structure of the microgametophyte changes so much as it develops into a megagametophyte. 
C)  because more samples are always better than one. 
D)  in case the first one dies. 
E)  because microgametophytes have a different structure than the megagametophytes. 
A)  to ensure genetic diversity in your sample. 
B)  because the structure of the microgametophyte changes so much as it develops into a megagametophyte. 
C)  because more samples are always better than one. 
D)  in case the first one dies. 
E)  because microgametophytes have a different structure than the megagametophytes.

Question 3

Land plants, sometimes referred to as _______, may be defined as multicellular photosynthetic eukaryotes that develop from embryos protected by tissues of the parent.

Accepted Answer

The answer of Land plants, sometimes referred to as _______,...

Question 4

Specialized reproductive organs on the sporophyte are _______ that produce _______ by _______.

Accepted Answer

A)  gametangia; gametes; meiosis 
B)  embryos; zygotes; fertilization 
C)  sporangia; spores; meiosis 
D)  sporangia; spores; mitosis 
E)  gametangia; zygotes; fertilization 
A)  gametangia; gametes; meiosis 
B)  embryos; zygotes; fertilization 
C)  sporangia; spores; meiosis 
D)  sporangia; spores; mitosis 
E)  gametangia; zygotes; fertilization

Question 5

Two hallmarks of a life cycle with an alternation of generations are

Accepted Answer

A)  a multicellular diploid stage and unicellular haploid stage, and gametes that are produced by meiosis. 
B)  a multicellular diploid stage and unicellular haploid stage, and gametes that are produced by mitosis. 
C)  a multicellular diploid stage and multicellular haploid stage, and gametes that are produced by meiosis. 
D)  a multicellular diploid stage and multicellular haploid stage, and gametes that are produced by mitosis. 
E)  a unicellular diploid stage and multicellular haploid stage, and gametes that are produced by mitosis. 
A)  a multicellular diploid stage and unicellular haploid stage, and gametes that are produced by meiosis. 
B)  a multicellular diploid stage and unicellular haploid stage, and gametes that are produced by mitosis. 
C)  a multicellular diploid stage and multicellular haploid stage, and gametes that are produced by meiosis. 
D)  a multicellular diploid stage and multicellular haploid stage, and gametes that are produced by mitosis. 
E)  a unicellular diploid stage and multicellular haploid stage, and gametes that are produced by mitosis.

Question 6

The organ in moss that produces sperm is called the _______; the organ that produces the egg is called the _______.

Accepted Answer

antheridiu

Question 7

Plant gametophytes divide by _______ to produce gametes, while sporophytes produce spores through _______.

Accepted Answer

A)  meiosis; fertilization 
B)  mitosis; meiosis 
C)  meiosis; differentiation 
D)  embryogenesis; fertilization 
E)  mitosis; cytokinesis 
A)  meiosis; fertilization 
B)  mitosis; meiosis 
C)  meiosis; differentiation 
D)  embryogenesis; fertilization 
E)  mitosis; cytokinesis

Question 8

The sporophyte of the moss Sphagnum

Accepted Answer

A)  is free-living. 
B)  produces gametes. 
C)  usually produces its own food by photosynthesis. 
D)  depends on the gametophyte for nutrients. 
E)  is larger than the gametophyte. 
A)  is free-living. 
B)  produces gametes. 
C)  usually produces its own food by photosynthesis. 
D)  depends on the gametophyte for nutrients. 
E)  is larger than the gametophyte.

Question 9

An important synapomorphy of the euphyllophytes is overtopping, a growth pattern in which one branch differentiates from and grows beyond the others.Overtopping growth allowed for

Accepted Answer

A)  more access to sunlight for photosynthesis and evolution of a larger leaf type. 
B)  more lateral expansion to obtain nutrients and evolution of a larger leaf type. 
C)  more access to wind for CO2 uptake and more access to sunlight for photosynthesis. 
D)  more lateral expansion to obtain nutrients and more access to wind for CO2 uptake. 
E)  more access to wind for CO2 uptake and evolution of a larger leaf type. 
A)  more access to sunlight for photosynthesis and evolution of a larger leaf type. 
B)  more lateral expansion to obtain nutrients and evolution of a larger leaf type. 
C)  more access to wind for CO2 uptake and more access to sunlight for photosynthesis. 
D)  more lateral expansion to obtain nutrients and more access to wind for CO2 uptake. 
E)  more access to wind for CO2 uptake and evolution of a larger leaf type.

Question 10

In order to thrive on land and colonize drier habitats, plants had to develop

Accepted Answer

A)  photosynthetic pigments and mechanisms for transporting water and minerals to aerial parts. 
B)  starch for carbohydrate storage and mechanisms for transporting water and minerals to aerial parts. 
C)  physical support structures and mechanisms for gamete dispersal. 
D)  photosynthetic pigments that are not dependent on an aqueous environment, and starch for carbohydrate storage. 
E)  alternation of generations and physical support structures. 
A)  photosynthetic pigments and mechanisms for transporting water and minerals to aerial parts. 
B)  starch for carbohydrate storage and mechanisms for transporting water and minerals to aerial parts. 
C)  physical support structures and mechanisms for gamete dispersal. 
D)  photosynthetic pigments that are not dependent on an aqueous environment, and starch for carbohydrate storage. 
E)  alternation of generations and physical support structures.

Question 11

Label the structures in the moss life cycle shown in the figure.   Indicate the sporophyte generation, gametophyte generation, and diploid or haploid status.Also indicate, in the open boxes, whether the process occurring is meiosis, mitosis, or fertilization.

Accepted Answer

a. Haploid; gametophyte generation
b. Di

Exam 27: Plants Without Seeds: From Water to Land

Lycophytes have _______, while monilophytes have _______.

Selaginella is a heterosporous lycophyte.If you want to study Selaginella gametophyte structure, the most important reason why you must collect more than one sample is

Land plants, sometimes referred to as _______, may be defined as multicellular photosynthetic eukaryotes that develop from embryos protected by tissues of the parent.

Specialized reproductive organs on the sporophyte are _______ that produce _______ by _______.

Two hallmarks of a life cycle with an alternation of generations are

The organ in moss that produces sperm is called the _______; the organ that produces the egg is called the _______.

Plant gametophytes divide by _______ to produce gametes, while sporophytes produce spores through _______.

The sporophyte of the moss Sphagnum

An important synapomorphy of the euphyllophytes is overtopping, a growth pattern in which one branch differentiates from and grows beyond the others.Overtopping growth allowed for

In order to thrive on land and colonize drier habitats, plants had to develop

Label the structures in the moss life cycle shown in the figure. Indicate the sporophyte generation, gametophyte generation, and diploid or haploid status.Also indicate, in the open boxes, whether the process occurring is meiosis, mitosis, or fertilization.

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

The Evolution of Seed Plants

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

Lycophytes have _, while monilophytes have _.

Specialized reproductive organs on the sporophyte are ___ that produce _ by _____.

The organ in moss that produces sperm is called the _; the organ that produces the egg is called the _.

Plant gametophytes divide by _ to produce gametes, while sporophytes produce spores through _.