Question 1

In the epidermis of a leaf are pores called _______ whose opening is controlled by the action of a pair of guard cells surrounding the pore.

Accepted Answer

The answer of In the epidermis of a leaf are...

Question 2

The flowers of eudicots have sepals in multiples of

Accepted Answer

A)  2 or 3. 
B)  3 or 4. 
C)  3 or 5. 
D)  3 or 7. 
E)  4 or 5. 
A)  2 or 3. 
B)  3 or 4. 
C)  3 or 5. 
D)  3 or 7. 
E)  4 or 5.

Question 3

Kale, broccoli, and cauliflower are derived from how many different species?

Accepted Answer

A)  One 
B)  Two 
C)  Three 
D)  Four 
E)  Five 
A)  One 
B)  Two 
C)  Three 
D)  Four 
E)  Five

Question 4

The polysaccharides that make up the primary cell wall

Accepted Answer

A)  are strong but flexible. 
B)  form a water-tight matrix. 
C)  are rigid and allow no further expansion. 
D)  function independently. 
E)  are relatively minor contributors to the carbon balance of ecosystems. 
A)  are strong but flexible. 
B)  form a water-tight matrix. 
C)  are rigid and allow no further expansion. 
D)  function independently. 
E)  are relatively minor contributors to the carbon balance of ecosystems.

Question 5

Suppose that a newly discovered chemical is found to stop cell division activity in all tissues interior to the endodermis.This chemical would interfere with the ability of the root to

Accepted Answer

A)  give rise to lateral roots. 
B)  control the access of water to the vascular tissue. 
C)  store nutrients. 
D)  elongate. 
E)  interact with mycorrhizal fungi. 
A)  give rise to lateral roots. 
B)  control the access of water to the vascular tissue. 
C)  store nutrients. 
D)  elongate. 
E)  interact with mycorrhizal fungi.

Question 6

Which statement about parenchyma cells is false?

Accepted Answer

A)  They are the most common cells in a plant. 
B)  They may contain chloroplasts. 
C)  They are commonly used for food storage. 
D)  They are alive at maturity. 
E)  They usually have thick cell walls. 
A)  They are the most common cells in a plant. 
B)  They may contain chloroplasts. 
C)  They are commonly used for food storage. 
D)  They are alive at maturity. 
E)  They usually have thick cell walls.

Question 7

A leaf skeleton, sometimes used in the art form known as nature printing, is very durable, lasting long after the mesophyll and epidermis have decomposed.This is because of the tough lignified cell walls of the

Accepted Answer

A)  mesophyll cells. 
B)  guard cells. 
C)  stomata. 
D)  epidermal cells. 
E)  vascular cells. 
A)  mesophyll cells. 
B)  guard cells. 
C)  stomata. 
D)  epidermal cells. 
E)  vascular cells.

Question 8

Which cells function as "life support systems" for sieve tube elements?

Accepted Answer

A)  Vessel elements 
B)  Tracheary elements 
C)  Fiber cells 
D)  Companion cells 
E)  Collenchyma cells 
A)  Vessel elements 
B)  Tracheary elements 
C)  Fiber cells 
D)  Companion cells 
E)  Collenchyma cells

Question 9

Grasses and other flowering plants with parallel-veined leaves and fibrous or adventitious roots are examples of

Accepted Answer

A)  monocots. 
B)  gymnosperms. 
C)  eudicots. 
D)  magnoliids. 
E)  Both a and b 
A)  monocots. 
B)  gymnosperms. 
C)  eudicots. 
D)  magnoliids. 
E)  Both a and b

Question 10

The pericycle is part of what tissue type?

Accepted Answer

A)  Phloem 
B)  Mesophyll 
C)  Cortical tissue 
D)  Vascular tissue 
E)  Epidermal tissue 
A)  Phloem 
B)  Mesophyll 
C)  Cortical tissue 
D)  Vascular tissue 
E)  Epidermal tissue

Question 11

The advantage of the spongy arrangement of mesophyll cells in the lower leaf layer is that it allows for

Accepted Answer

A)  maximum absorption of sunlight for photosynthesis. 
B)  maximum diffusion of CO2 in the leaf. 
C)  maximum movement of water into leaf cells. 
D)  minimum water loss from the leaf. 
E)  minimum exchange of O2 within the leaf. 
A)  maximum absorption of sunlight for photosynthesis. 
B)  maximum diffusion of CO2 in the leaf. 
C)  maximum movement of water into leaf cells. 
D)  minimum water loss from the leaf. 
E)  minimum exchange of O2 within the leaf.

Question 12

Which statement about plant tissue systems is false?

Accepted Answer

A)  Protoderm gives rise to the dermal tissue system. 
B)  Epiderm gives rise to bark. 
C)  Ground meristem gives rise to the ground tissue system. 
D)  Procambium gives rise to the vascular tissue system. 
E)  Periderm is part of the dermal tissue system. 
A)  Protoderm gives rise to the dermal tissue system. 
B)  Epiderm gives rise to bark. 
C)  Ground meristem gives rise to the ground tissue system. 
D)  Procambium gives rise to the vascular tissue system. 
E)  Periderm is part of the dermal tissue system.

Question 13

Structures that protrude from bark for the purpose of gas exchange are called

Accepted Answer

A)  leaves. 
B)  leaf hairs. 
C)  stomata. 
D)  lenticels. 
E)  root hairs. 
A)  leaves. 
B)  leaf hairs. 
C)  stomata. 
D)  lenticels. 
E)  root hairs.

Question 14

When the periderm of a cork oak is stripped for making wine bottle stoppers and other manufactured products, the removed material must be replaced by the tree because the periderm

Accepted Answer

A)  transports sugars. 
B)  forms branches. 
C)  absorbs water. 
D)  protects the inner tissues. 
E)  supports the leaves. 
A)  transports sugars. 
B)  forms branches. 
C)  absorbs water. 
D)  protects the inner tissues. 
E)  supports the leaves.

Question 15

The vascular tissue system of plants is analogous to the _______ system in animals.

Accepted Answer

A)  circulatory 
B)  digestive 
C)  excretory 
D)  reproductive 
E)  respiratory 
A)  circulatory 
B)  digestive 
C)  excretory 
D)  reproductive 
E)  respiratory

Question 16

You are observing a plant cell that belongs to the vascular tissue.It is a living cell, with open pits at the ends, creating a continuous transport system.The kind of cell you are looking at is most likely a _______.

Accepted Answer

The answer of You are observing a plant cell that...

Question 17

Refer to the figure showing a type of vascular tissue cell.   Which of the following is not a feature of the plant cell type that contains phloem sap?

Accepted Answer

A)  It is alive at maturity. 
B)  It transports food from sources to sinks. 
C)  It is nucleated. 
D)  It has sieve-like endplates that allow phloem sap to flow from cell to cell. 
E)  Some have adjacent companion cells. 
A)  It is alive at maturity. 
B)  It transports food from sources to sinks. 
C)  It is nucleated. 
D)  It has sieve-like endplates that allow phloem sap to flow from cell to cell. 
E)  Some have adjacent companion cells.

Question 18

Wood is composed of

Accepted Answer

A)  xylem and phloem. 
B)  phloem. 
C)  xylem. 
D)  pith. 
E)  pith and phloem. 
A)  xylem and phloem. 
B)  phloem. 
C)  xylem. 
D)  pith. 
E)  pith and phloem.

Question 19

A fibrous root system

Accepted Answer

A)  grows deep into the substrate. 
B)  consists of thick roots. 
C)  holds soil well. 
D)  is typical of many eudicots. 
E)  functions as a food storage organ. 
A)  grows deep into the substrate. 
B)  consists of thick roots. 
C)  holds soil well. 
D)  is typical of many eudicots. 
E)  functions as a food storage organ.

Question 20

You are performing developmental studies during which you extract mesophyll cells from an unusual-looking leaf.In laboratory culture, individual mesophyll cells from this leaf can be induced to regenerate entire plants.How would these cells be classified?

Accepted Answer

A)  Pluripotent 
B)  Omnipotent 
C)  Semipotent 
D)  Totipotent 
E)  Omniscient 
A)  Pluripotent 
B)  Omnipotent 
C)  Semipotent 
D)  Totipotent 
E)  Omniscient

Exam 33: The Plant Body

In the epidermis of a leaf are pores called _______ whose opening is controlled by the action of a pair of guard cells surrounding the pore.

The flowers of eudicots have sepals in multiples of

Kale, broccoli, and cauliflower are derived from how many different species?

The polysaccharides that make up the primary cell wall

Suppose that a newly discovered chemical is found to stop cell division activity in all tissues interior to the endodermis.This chemical would interfere with the ability of the root to

Which statement about parenchyma cells is false?

A leaf skeleton, sometimes used in the art form known as nature printing, is very durable, lasting long after the mesophyll and epidermis have decomposed.This is because of the tough lignified cell walls of the

Which cells function as "life support systems" for sieve tube elements?

Grasses and other flowering plants with parallel-veined leaves and fibrous or adventitious roots are examples of

The pericycle is part of what tissue type?

The advantage of the spongy arrangement of mesophyll cells in the lower leaf layer is that it allows for

Which statement about plant tissue systems is false?

Structures that protrude from bark for the purpose of gas exchange are called

When the periderm of a cork oak is stripped for making wine bottle stoppers and other manufactured products, the removed material must be replaced by the tree because the periderm

The vascular tissue system of plants is analogous to the _______ system in animals.

You are observing a plant cell that belongs to the vascular tissue.It is a living cell, with open pits at the ends, creating a continuous transport system.The kind of cell you are looking at is most likely a _______.

Refer to the figure showing a type of vascular tissue cell. Which of the following is not a feature of the plant cell type that contains phloem sap?

Wood is composed of

A fibrous root system

You are performing developmental studies during which you extract mesophyll cells from an unusual-looking leaf.In laboratory culture, individual mesophyll cells from this leaf can be induced to regenerate entire plants.How would these cells be classified?

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 of Seed Plants

The Evolution and Diversity of Fungi

Animal Origins and the Evolution of Body Plans

Protostome Animals

Deuterostome Animals

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

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