Question 1

Figure 35-2
Use the figure to answer the corresponding questions.  
-The function of the structure labeled 1 in Figure 35-2 is:

Accepted Answer

A)  the formation of pith. 
B)  protection. 
C)  conduction of water and dissolved minerals from the roots. 
D)  conduction of sugars from the leaves. 
E)  photosynthesis. 
A)  the formation of pith. 
B)  protection. 
C)  conduction of water and dissolved minerals from the roots. 
D)  conduction of sugars from the leaves. 
E)  photosynthesis. C

Question 2

Concentric rings found in the wood of the trees are known as:

Accepted Answer

A)  summer rings. 
B)  spring rings. 
C)  annual rings. 
D)  dendrochrons. 
E)  pith rings. 
A)  summer rings. 
B)  spring rings. 
C)  annual rings. 
D)  dendrochrons. 
E)  pith rings. C

Question 3

Water is transported vertically through the plant via the process of translocation.
____________________

Accepted Answer

A) True 
 B)False  False

Question 4

According to the pressure-flow hypothesis:

Accepted Answer

A)  water moves from an area of positive water potential to an area of negative water potential. 
B)  the evaporative pull of transpiration produces tension at the top of the plant. 
C)  the flow of sugar is driven by a hydrostatic pressure gradient produced by water entering the phloem. 
D)  pressure is created by the movement of water into the roots from the soil. 
E)  the column of water pulled up through the plant is unbroken due to cohesive and adhesive properties. 
A)  water moves from an area of positive water potential to an area of negative water potential. 
B)  the evaporative pull of transpiration produces tension at the top of the plant. 
C)  the flow of sugar is driven by a hydrostatic pressure gradient produced by water entering the phloem. 
D)  pressure is created by the movement of water into the roots from the soil. 
E)  the column of water pulled up through the plant is unbroken due to cohesive and adhesive properties.

Question 5

MATCHING
Match the tissue with the appropriate description.
a.cork cambium
e.periderm
b.cork parenchyma
f.phloem
c.epidermis
g.vascular cambium
d.ground tissue
h.xylem
-Pith is composed of this tissue.

Accepted Answer

The answer of MATCHING
Match the tissue with the appropriate description.
a.cork...

Question 6

__________ are responsible for absorption and anchoring of a plant, while __________ are involved in photosynthesis.

Accepted Answer

A)  Roots; leaves 
B)  Stems; leaves 
C)  Leaves; reproductive structures 
D)  Reproductive structures; stems 
E)  Roots; pollen 
A)  Roots; leaves 
B)  Stems; leaves 
C)  Leaves; reproductive structures 
D)  Reproductive structures; stems 
E)  Roots; pollen

Question 7

Water is capable of rising to the tops of the tallest trees due to all of the following except:

Accepted Answer

A)  the hydrogen bonds among water molecules. 
B)  the cohesiveness of water molecules. 
C)  the adhesion of water to the walls of xylem cells. 
D)  the evaporative pull of transpiration. 
E)  root pressure. 
A)  the hydrogen bonds among water molecules. 
B)  the cohesiveness of water molecules. 
C)  the adhesion of water to the walls of xylem cells. 
D)  the evaporative pull of transpiration. 
E)  root pressure.

Question 8

Which of the following statements about the cortex is true?

Accepted Answer

A)  It secretes a protective layer of cutin. 
B)  It is at the core of the herbaceous eudicot stem. 
C)  It is filled with cork cells. 
D)  It translocates sugar by means of a pressure gradient. 
E)  It may contain collenchyma and sclerenchyma. 
A)  It secretes a protective layer of cutin. 
B)  It is at the core of the herbaceous eudicot stem. 
C)  It is filled with cork cells. 
D)  It translocates sugar by means of a pressure gradient. 
E)  It may contain collenchyma and sclerenchyma.

Question 9

At the core of an herbaceous eudicot stem is:

Accepted Answer

A)  pith. 
B)  collenchyma. 
C)  sclerenchyma. 
D)  vascular cambium. 
E)  phloem. 
A)  pith. 
B)  collenchyma. 
C)  sclerenchyma. 
D)  vascular cambium. 
E)  phloem.

Question 10

In woody plants, the horizontal transport of materials occurs through:

Accepted Answer

A)  lenticels. 
B)  pith. 
C)  pith rays. 
D)  phloem fiber caps. 
E)  rays. 
A)  lenticels. 
B)  pith. 
C)  pith rays. 
D)  phloem fiber caps. 
E)  rays.

Question 11

In the very center of a monocot stem is found pith.
____________________

Accepted Answer

A) True 
 B)False

Question 12

Embryonic shoots located at the tips of stems are called __________, while those located in the angle between leaves and stems are known as __________.

Accepted Answer

A)  nodes; internodes 
B)  axillary buds; terminal buds 
C)  terminal buds; axillary buds 
D)  axillary buds; lateral buds 
E)  bud scales; bud scale scars 
A)  nodes; internodes 
B)  axillary buds; terminal buds 
C)  terminal buds; axillary buds 
D)  axillary buds; lateral buds 
E)  bud scales; bud scale scars

Question 13

MATCHING
Match the tissue with the appropriate description.
a.cork cambium
e.periderm
b.cork parenchyma
f.phloem
c.epidermis
g.vascular cambium
d.ground tissue
h.xylem
-If you were to take a cross section of a tree from the tropics, would you be able to determine the accurate age of the tree? Why or why not?

Accepted Answer

Concepts to Consider: No.Annual rings ca

Question 14

Which of the following statements about heartwood is false?

Accepted Answer

A)  It functions in conduction. 
B)  It is a storage site for waste products. 
C)  It is resistant to decay. 
D)  It provides structural support. 
E)  It is located in the center of a tree. 
A)  It functions in conduction. 
B)  It is a storage site for waste products. 
C)  It is resistant to decay. 
D)  It provides structural support. 
E)  It is located in the center of a tree.

Question 15

Figure 35-2
Use the figure to answer the corresponding questions.  
-The structure labeled 3 in Figure 35-2 is:

Accepted Answer

A)  the secondary xylem. 
B)  formed by the division of the vascular cambium. 
C)  found adjacent to the pith. 
D)  usually referred to as wood. 
E)  the cork cambium. 
A)  the secondary xylem. 
B)  formed by the division of the vascular cambium. 
C)  found adjacent to the pith. 
D)  usually referred to as wood. 
E)  the cork cambium.

Question 16

In monocots such as palms considerable increase in girth is achieved by:

Accepted Answer

A)  secondary growth. 
B)  primary growth. 
C)  a modified form of primary growth in which parenchyma cells divide and enlarge. 
D)  enlargement of primary xylem. 
E)  enlargement of primary phloem. 
A)  secondary growth. 
B)  primary growth. 
C)  a modified form of primary growth in which parenchyma cells divide and enlarge. 
D)  enlargement of primary xylem. 
E)  enlargement of primary phloem.

Question 17

Sapwood is functional secondary xylem.
____________________

Accepted Answer

A) True 
 B)False

Question 18

MATCHING
Match the tissue with the appropriate description.
a.cork cambium
e.periderm
b.cork parenchyma
f.phloem
c.epidermis
g.vascular cambium
d.ground tissue
h.xylem
-This tissue is covered by a cuticle.

Accepted Answer

The answer of MATCHING
Match the tissue with the appropriate description.
a.cork...

Question 19

Sapwood develops from __________.

Accepted Answer

A)  secondary xylem 
B)  secondary phloem 
C)  primary phloem 
D)  primary xylem 
E)  cork parenchyma 
A)  secondary xylem 
B)  secondary phloem 
C)  primary phloem 
D)  primary xylem 
E)  cork parenchyma

Question 20

Guttation results from __________.

Accepted Answer

A)  water pressure 
B)  transpiration pull 
C)  osmotic pressure 
D)  root pressure 
E)  sink-to-source transport. 
A)  water pressure 
B)  transpiration pull 
C)  osmotic pressure 
D)  root pressure 
E)  sink-to-source transport.

Exam 35: Stem Structure and Transport

Figure 35-2 Use the figure to answer the corresponding questions. -The function of the structure labeled 1 in Figure 35-2 is:

Concentric rings found in the wood of the trees are known as:

Water is transported vertically through the plant via the process of translocation. ____________________

According to the pressure-flow hypothesis:

MATCHING Match the tissue with the appropriate description. a.cork cambium e.periderm b.cork parenchyma f.phloem c.epidermis g.vascular cambium d.ground tissue h.xylem -Pith is composed of this tissue.

__________ are responsible for absorption and anchoring of a plant, while __________ are involved in photosynthesis.

Water is capable of rising to the tops of the tallest trees due to all of the following except:

Which of the following statements about the cortex is true?

At the core of an herbaceous eudicot stem is:

In woody plants, the horizontal transport of materials occurs through:

In the very center of a monocot stem is found pith. ____________________

Embryonic shoots located at the tips of stems are called __________, while those located in the angle between leaves and stems are known as __________.

Which of the following statements about heartwood is false?

Figure 35-2 Use the figure to answer the corresponding questions. -The structure labeled 3 in Figure 35-2 is:

In monocots such as palms considerable increase in girth is achieved by:

Sapwood is functional secondary xylem. ____________________

MATCHING Match the tissue with the appropriate description. a.cork cambium e.periderm b.cork parenchyma f.phloem c.epidermis g.vascular cambium d.ground tissue h.xylem -This tissue is covered by a cuticle.

Sapwood develops from __________.

Guttation results from __________.

A View of Life

Atoms and Molecules: the Chemical Basis of Life

The Chemistry of Life: Organic Compounds

Organization of the Cell

Biological Membranes

Cell Communication

Energy and Metabolism

How Cells Make Atp: Energy-Releasing Pathways

Photosynthesis: Capturing Light Energy

Chromosomes, Mitosis, and Meiosis

The Basic Principles of Heredity

Dna: the Carrier of Genetic Information

Gene Expression

Gene Regulation

Dna Technology and Genomics

Human Genetics and the Human Genome

Developmental Genetics

Introduction to Darwinian Evolution

Evolutionary Change in Populations

Speciation and Macroevolution

The Origin and Evolutionary History of Life

The Evolution of Primates

Understanding Diversity: Systematics

Viruses and Subviral Agents

Bacteria and Archaea

Protists

Seedless Plants

Seed Plants

The Fungi

An Introduction to Animal Diversity

Sponges, Cnidarians, Ctenophores, and Protostomes

The Deuterostomes

Plant Structure, Growth, and Development

Leaf Structure and Function

Roots and Mineral Nutrition

Reproduction in Flowering Plants

Plant Developmental Responses to External and Internal Signals

Animal Structure and Function: an Introduction

Protection, Support, and Movement

Neural Signaling

Neural Regulation

Sensory Systems

Internal Transport

The Immune System: Internal Defense

Gas Exchange

Processing Food and Nutrition

Osmoregulation and Disposal of Metabolic Wastes

Endocrine Regulation

Reproduction

Animal Development

Animal Behavior

Introduction to Ecology: Population Ecology

Community Ecology

Ecosystems and the Biosphere

Ecology and the Geography of Life

Biological Diversity and Conservation Biology

Filters

are responsible for absorption and anchoring of a plant, while are involved in photosynthesis.

Embryonic shoots located at the tips of stems are called , while those located in the angle between leaves and stems are known as .