Question 1

What is true about the genus Sphagnum?

Accepted Answer

A) It is an economically important liverwort. 
B) It grows in extensive mats in grassland areas. 
C) It is used by gardeners as a fertilizer. 
D) It accumulates to form coal and is burned as a fuel. 
E) It is an important carbon sink,reducing atmospheric CO₂. 
A) It is an economically important liverwort. 
B) It grows in extensive mats in grassland areas. 
C) It is used by gardeners as a fertilizer. 
D) It accumulates to form coal and is burned as a fuel. 
E) It is an important carbon sink,reducing atmospheric CO₂. E

Question 2

According to the fossil record,plants colonized terrestrial habitats _____.

Accepted Answer

A) in conjunction with insects that pollinated them 
B) in conjunction with fungi that helped provide them with nutrients from the soil 
C) from marine habitats 
D) only about 150 million years ago 
A) in conjunction with insects that pollinated them 
B) in conjunction with fungi that helped provide them with nutrients from the soil 
C) from marine habitats 
D) only about 150 million years ago B

Question 3

The most direct ancestors of land plants were probably _____.

Accepted Answer

A) any of the green algae that live in water 
B) certain groups of algae 
C) photosynthesizing prokaryotes (cyanobacteria) 
D) liverworts and mosses 
A) any of the green algae that live in water 
B) certain groups of algae 
C) photosynthesizing prokaryotes (cyanobacteria) 
D) liverworts and mosses B

Question 4

Plants are the primary providers of oxygen,which is obtained by the reduction of carbon dioxide.What chemical donates the electrons needed for CO₂ reduction?

Accepted Answer

A) sunlight 
B) glucose 
C) water 
D) carbon monoxide 
E) oxygen 
A) sunlight 
B) glucose 
C) water 
D) carbon monoxide 
E) oxygen

Question 5

You find a green organism in a pond near your house and believe it is a plant,not an alga.Which line of evidence would definitively support your hypothesis?

Accepted Answer

A) It contains chloroplasts. 
B) It is multicellular. 
C) It is surrounded by a cuticle. 
D) It does not contain vascular tissue. 
E) Its cell walls are comprised largely of cellulose. 
A) It contains chloroplasts. 
B) It is multicellular. 
C) It is surrounded by a cuticle. 
D) It does not contain vascular tissue. 
E) Its cell walls are comprised largely of cellulose.

Question 6

Which of these are structures in a gametophyte generation?

Accepted Answer

A) leaves,stems,roots,flowers,cones 
B) spores,egg,sperm,pollen,archegonium 
C) antheridium,embryo,seed,spores,flower 
D) egg,sperm,zygote,embryo,seedling 
A) leaves,stems,roots,flowers,cones 
B) spores,egg,sperm,pollen,archegonium 
C) antheridium,embryo,seed,spores,flower 
D) egg,sperm,zygote,embryo,seedling

Question 7

Molecular phylogenies show all land plants are a monophyletic group.This suggests that _____.

Accepted Answer

A) there were many different transitions from aquatic to terrestrial habitats 
B) wind-pollinated plants arose first 
C) land plants have undergone a diversification since they first colonized terrestrial habitats 
D) there was a single transition from aquatic to terrestrial habitats 
A) there were many different transitions from aquatic to terrestrial habitats 
B) wind-pollinated plants arose first 
C) land plants have undergone a diversification since they first colonized terrestrial habitats 
D) there was a single transition from aquatic to terrestrial habitats

Question 8

Which of the following is true of stomata?

Accepted Answer

A) Stomata occur in all land plants and define them as a monophyletic group. 
B) Stomata open to allow gas exchange and close to decrease water loss. 
C) Stomata occur in all land plants and are the same as pores. 
D) Stomata open to increase both water absorption and gas exchange. 
A) Stomata occur in all land plants and define them as a monophyletic group. 
B) Stomata open to allow gas exchange and close to decrease water loss. 
C) Stomata occur in all land plants and are the same as pores. 
D) Stomata open to increase both water absorption and gas exchange.

Question 9

Which set contains the most closely related terms?

Accepted Answer

A) megasporangium,megaspore,pollen,ovule 
B) microsporangium,microspore,egg,ovary 
C) megasporangium,megaspore,egg,ovule 
D) microsporangium,microspore,carpel,ovary 
A) megasporangium,megaspore,pollen,ovule 
B) microsporangium,microspore,egg,ovary 
C) megasporangium,megaspore,egg,ovule 
D) microsporangium,microspore,carpel,ovary

Question 10

Spores and seeds have basically the same function-dispersal-but are vastly different because _____.

Accepted Answer

A) spores have a protective outer covering;seeds do not 
B) spores have an embryo;seeds do not 
C) spores have stored nutrition;seeds do not 
D) spores are unicellular;seeds are not 
E) spores depend primarily on animals for dispersal;seeds do not 
A) spores have a protective outer covering;seeds do not 
B) spores have an embryo;seeds do not 
C) spores have stored nutrition;seeds do not 
D) spores are unicellular;seeds are not 
E) spores depend primarily on animals for dispersal;seeds do not

Question 11

Which of these is a major trend in land plant evolution?

Accepted Answer

A) the trend toward smaller size 
B) the trend toward a gametophyte-dominated life cycle 
C) the trend toward a sporophyte-dominated life cycle 
D) the trend toward larger gametophytes 
A) the trend toward smaller size 
B) the trend toward a gametophyte-dominated life cycle 
C) the trend toward a sporophyte-dominated life cycle 
D) the trend toward larger gametophytes

Question 12

Why are seedless vascular plants considered paraphyletic rather than monophyletic?

Accepted Answer

A) Some of the groups within the seedless vascular plants (Equisetophyta and Pteridophyta)are more closely related to each other than to other groups (Lycophyta). 
B) They share a more recent common ancestor with seeded plants than they do with the non-vascular plants. 
C) All of the groups contained within the seedless vascular plants do not have the same ancestor. 
D) The group includes their common ancestor but also the seeded descendants of that same ancestor. 
A) Some of the groups within the seedless vascular plants (Equisetophyta and Pteridophyta)are more closely related to each other than to other groups (Lycophyta). 
B) They share a more recent common ancestor with seeded plants than they do with the non-vascular plants. 
C) All of the groups contained within the seedless vascular plants do not have the same ancestor. 
D) The group includes their common ancestor but also the seeded descendants of that same ancestor.

Question 13

As you stroll through a moist forest,you are most likely to see a _____.

Accepted Answer

A) zygote of a green alga 
B) gametophyte of a moss 
C) sporophyte of a liverwort 
D) gametophyte of a fern 
A) zygote of a green alga 
B) gametophyte of a moss 
C) sporophyte of a liverwort 
D) gametophyte of a fern

Question 14

How are the bryophytes and seedless vascular plants alike?

Accepted Answer

A) Plants in both groups have vascular tissue. 
B) In both groups,sperm swim from antheridia to archegonia. 
C) The dominant generation in both groups is the sporophyte. 
D) Plants in both groups have true roots,stems,and leaves. 
A) Plants in both groups have vascular tissue. 
B) In both groups,sperm swim from antheridia to archegonia. 
C) The dominant generation in both groups is the sporophyte. 
D) Plants in both groups have true roots,stems,and leaves.

Question 15

Liverworts,hornworts,and mosses are grouped together as the Bryophytes.Besides not having vascular tissue,what do they all have in common?

Accepted Answer

A) They are all wind pollinated. 
B) They are heterosporous. 
C) They can reproduce asexually by producing gemmae. 
D) They require water for reproduction. 
E) They have the ability to desiccate and rehydrate with no ill effects. 
A) They are all wind pollinated. 
B) They are heterosporous. 
C) They can reproduce asexually by producing gemmae. 
D) They require water for reproduction. 
E) They have the ability to desiccate and rehydrate with no ill effects.

Question 16

The retaining of the zygote on the living gametophyte of land plants _____.

Accepted Answer

A) protects the zygote from herbivores 
B) evolved concurrently with pollen 
C) helps in dispersal of the zygote 
D) allows it to be nourished by the parent plant 
E) is found only in seed plants 
A) protects the zygote from herbivores 
B) evolved concurrently with pollen 
C) helps in dispersal of the zygote 
D) allows it to be nourished by the parent plant 
E) is found only in seed plants

Question 17

Which group of seedless vascular plants was the first to develop roots?

Accepted Answer

A) club mosses 
B) horsetails 
C) ferns 
D) whisk ferns 
A) club mosses 
B) horsetails 
C) ferns 
D) whisk ferns

Question 18

How could you determine if a plant is heterosporous?

Accepted Answer

A) It produces pollen. 
B) It produces bisexual gametophytes. 
C) It has vascular tissue. 
D) It has multiple sporangia. 
E) Its diploid sporophyte produces spores via meiosis. 
A) It produces pollen. 
B) It produces bisexual gametophytes. 
C) It has vascular tissue. 
D) It has multiple sporangia. 
E) Its diploid sporophyte produces spores via meiosis.

Question 19

Which of the following possess stomata?

Accepted Answer

A) Ulvophyceae 
B) Hepaticophyta 
C) Charaphyaceae 
D) Anthocerophyta 
A) Ulvophyceae 
B) Hepaticophyta 
C) Charaphyaceae 
D) Anthocerophyta

Question 20

Immature seed cones of conifers are usually green before pollination,and flowers of grasses are inconspicuously colored.What does this indicate about their pollination?

Accepted Answer

A) They self-fertilize and do not need pollen carried from one plant to another. 
B) Their pollinating insects are color blind. 
C) They are wind pollinated. 
D) They probably attract pollinators using strong fragrances. 
A) They self-fertilize and do not need pollen carried from one plant to another. 
B) Their pollinating insects are color blind. 
C) They are wind pollinated. 
D) They probably attract pollinators using strong fragrances.

Exam 30: Green Plants

What is true about the genus Sphagnum?

According to the fossil record,plants colonized terrestrial habitats _____.

The most direct ancestors of land plants were probably _____.

Plants are the primary providers of oxygen,which is obtained by the reduction of carbon dioxide.What chemical donates the electrons needed for CO₂ reduction?

You find a green organism in a pond near your house and believe it is a plant,not an alga.Which line of evidence would definitively support your hypothesis?

Which of these are structures in a gametophyte generation?

Molecular phylogenies show all land plants are a monophyletic group.This suggests that _____.

Which of the following is true of stomata?

Which set contains the most closely related terms?

Spores and seeds have basically the same function-dispersal-but are vastly different because _____.

Which of these is a major trend in land plant evolution?

Why are seedless vascular plants considered paraphyletic rather than monophyletic?

As you stroll through a moist forest,you are most likely to see a _____.

How are the bryophytes and seedless vascular plants alike?

Liverworts,hornworts,and mosses are grouped together as the Bryophytes.Besides not having vascular tissue,what do they all have in common?

The retaining of the zygote on the living gametophyte of land plants _____.

Which group of seedless vascular plants was the first to develop roots?

How could you determine if a plant is heterosporous?

Which of the following possess stomata?

Immature seed cones of conifers are usually green before pollination,and flowers of grasses are inconspicuously colored.What does this indicate about their pollination?

Biology and the Tree of Life

Water and Carbon: the Chemical Basis of Life

Protein Structure and Function

Nucleic Acids and the Rna World

An Introduction to Carbohydrates

Lipids, membranes, and the First Cells

Inside the Cell

Cell-Cell Interactions

Cellular Respiration and Fermentation

Photosynthesis

The Cell Cycle

Meiosis

Mendel and the Gene

Dna and the Gene: Synthesis and Repair

How Genes Work

Transcription and Translation

Control of Gene Expression in Bacteria

Control of Gene Expression in Eukaryotes

Analyzing and Engineering Genes

Genomics

Principles of Development

An Introduction to Animal Development

An Introduction to Plant Development

Evolution by Natural Selection

Evolutionary Processes

Speciation

Phylogenies and the History of Life

Bacteria and Archaea

Protists

Fungi

An Introduction to Animals

Protostome Animals

Deuterostome Animals

Viruses

Plant Form and Function

Water and Sugar Transport in Plants

Plant Nutrition

Plant Sensory Systems, signals, and Responses

Plant Reproduction

Animal Form and Function

Water and Electrolyte Balance in Animals

Animal Nutrition

Gas Exchange and Circulation

Electrical Signals in Animals

Animal Sensory Systems and Movement

Chemical Signals in Animals

Animal Reproduction

The Immune System in Animals

An Introduction to Ecology

Behavioral Ecology

Population Ecology

Community Ecology

Ecosystems

Biodiversity and Conservation Biology

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