Question 1

What type of tissue transports sugars (the product of photosynthesis) throughout the plant?

Accepted Answer

A)  Endodermis 
B)  Parenchyma 
C)  Collenchyma 
D)  Xylem 
E)  Phloem 
A)  Endodermis 
B)  Parenchyma 
C)  Collenchyma 
D)  Xylem 
E)  Phloem

Question 2

The guard cells shown in this figure have

Accepted Answer

A)  lost potassium ions. 
B)  eliminated all potassium ions. 
C)  lost most of their water. 
D)  accumulated potassium ions. 
A)  lost potassium ions. 
B)  eliminated all potassium ions. 
C)  lost most of their water. 
D)  accumulated potassium ions.

Question 3

Which of the following would you be unable to locate in xylem tissue?

Accepted Answer

A)  Sieve tube elements 
B)  Cell walls with porous dimples called pits 
C)  Sclerenchyma cells 
D)  Vessel elements 
E)  Tracheids 
A)  Sieve tube elements 
B)  Cell walls with porous dimples called pits 
C)  Sclerenchyma cells 
D)  Vessel elements 
E)  Tracheids

Question 4

Of the major tissue systems associated with land plants, the _ tissue system covers the outer surface of the primary plant.

Accepted Answer

A)  meristem 
B)  dermal 
C)  ground 
D)  parenchyma 
E)  vascular 
A)  meristem 
B)  dermal 
C)  ground 
D)  parenchyma 
E)  vascular

Question 5

Most flowering plants grow throughout their lives. This type of growth is known as

Accepted Answer

A)  secondary growth. 
B)  indeterminate growth. 
C)  primary growth. 
D)  exponential growth. 
E)  determinate growth. 
A)  secondary growth. 
B)  indeterminate growth. 
C)  primary growth. 
D)  exponential growth. 
E)  determinate growth.

Question 6

Parenchyma tissue is a component of the _ _ tissue system.

Accepted Answer

A)  ground 
B)  epidermal 
C)  dermal 
D)  phloem 
E)  vascular 
A)  ground 
B)  epidermal 
C)  dermal 
D)  phloem 
E)  vascular

Question 7

Under the influence of hormones, branch roots emerge from the of a growing root.

Accepted Answer

A)  Casparian strip 
B)  central cylinder 
C)  endodermis 
D)  pericycle 
E)  epidermis 
A)  Casparian strip 
B)  central cylinder 
C)  endodermis 
D)  pericycle 
E)  epidermis

Question 8

The concentration of nutrients in plants is approximately the same as the concentration of nutrients in the surrounding soil.

Accepted Answer

A) True 
 B)False

Question 9

Which of the following is a common function of stems but NOT of roots?

Accepted Answer

A)  Storage 
B)  Support 
C)  Anchorage 
D)  Absorption 
A)  Storage 
B)  Support 
C)  Anchorage 
D)  Absorption

Question 10

As an oak tree ages, the trunk becomes thicker and woodier due to growth.

Accepted Answer

A)  determinate 
B)  apical meristem 
C)  tertiary 
D)  secondary 
E)  primary 
A)  determinate 
B)  apical meristem 
C)  tertiary 
D)  secondary 
E)  primary

Question 11

Water- conducting cells that have a small diameter and tapered ends are called

Accepted Answer

A)  companion cells. 
B)  sieve- tube elements. 
C)  collenchyma cells. 
D)  tracheids. 
E)  vessel elements. 
A)  companion cells. 
B)  sieve- tube elements. 
C)  collenchyma cells. 
D)  tracheids. 
E)  vessel elements.

Question 12

You have been asked by your instructor to go to the greenhouse and select a plant that exhibits secondary growth. Which of the following plants would you choose?

Accepted Answer

A)  Rose bush 
B)  Strawberry 
C)  Bermuda grass 
D)  Pansy 
E)  Daffodil 
A)  Rose bush 
B)  Strawberry 
C)  Bermuda grass 
D)  Pansy 
E)  Daffodil

Question 13

Because most of the trunk of a tree is made of xylem, it is safe to say that most of the tissue in a tree is

Accepted Answer

A)  used for storage. 
B)  dead. 
C)  dividing rapidly. 
D)  conducting sugars. 
E)  manufacturing sugars. 
A)  used for storage. 
B)  dead. 
C)  dividing rapidly. 
D)  conducting sugars. 
E)  manufacturing sugars.

Question 14

Which of the following is NOT true of sclerenchyma tissue?

Accepted Answer

A)  It is a storage site for sugars and starches. 
B)  It dies at maturity. 
C)  It is made up of cells with thickened cell walls. 
D)  It is associated with xylem and phloem in the vascular tissue system. 
E)  It provides support to strengthen the plant. 
A)  It is a storage site for sugars and starches. 
B)  It dies at maturity. 
C)  It is made up of cells with thickened cell walls. 
D)  It is associated with xylem and phloem in the vascular tissue system. 
E)  It provides support to strengthen the plant.

Question 15

The formation of sieve plates between phloem sieve- tube elements allows

Accepted Answer

A)  mesophyll cells to connect with xylem cells. 
B)  the dead phloem cells to form an empty tube. 
C)  water to transpire from each surface. 
D)  each cell to function independently. 
E)  adjacent cells to connect via membrane- lined pores. 
A)  mesophyll cells to connect with xylem cells. 
B)  the dead phloem cells to form an empty tube. 
C)  water to transpire from each surface. 
D)  each cell to function independently. 
E)  adjacent cells to connect via membrane- lined pores.

Question 16

Which of these pathways best summarizes the route of a mineral that is absorbed by a plant?

Accepted Answer

A)  Root hairs -epidermis -cortex -endodermis -pericycle -xylem 
B)  Root hairs -epidermis -endodermis -cortex -xylem 
C)  Root hairs -pericycle -endodermis -endodermis -cortex -xylem 
D)  Root hairs -endodermis -cortex -pericycle -xylem 
E)  Root hairs -cortex -epidermis -phloem -xylem 
A)  Root hairs -epidermis -cortex -endodermis -pericycle -xylem 
B)  Root hairs -epidermis -endodermis -cortex -xylem 
C)  Root hairs -pericycle -endodermis -endodermis -cortex -xylem 
D)  Root hairs -endodermis -cortex -pericycle -xylem 
E)  Root hairs -cortex -epidermis -phloem -xylem

Question 17

Which of the following statements is incorrect with regard to xylem tissue?

Accepted Answer

A)  Vessel elements contain pits. 
B)  Xylem cells are dead at maturity. 
C)  Xylem is composed of tracheids and vessel elements. 
D)  Companion cells provide nutrition for tracheids. 
E)  Water and minerals are transported by xylem. 
A)  Vessel elements contain pits. 
B)  Xylem cells are dead at maturity. 
C)  Xylem is composed of tracheids and vessel elements. 
D)  Companion cells provide nutrition for tracheids. 
E)  Water and minerals are transported by xylem.

Question 18

Most of a carrot, which is adapted for carbohydrate storage, is

Accepted Answer

A)  xylem. 
B)  pericycle. 
C)  endodermis. 
D)  cortex. 
E)  phloem. 
A)  xylem. 
B)  pericycle. 
C)  endodermis. 
D)  cortex. 
E)  phloem.

Question 19

Several chemical pollutants from a paper mill are released into the nearby environment. Compound A is rich in and magnesium. Compound B binds tightly to all free polypeptides and proteins in the soil. Compound C is stru similar to abscisic acid. Based on this scenario, which compound will most likely harm the surrounding vegetation, and what effect(s) w have on the plants?

Accepted Answer

A)  Compound A, because these minerals will act as toxins to the plant as they are absorbed through the roots. 
B)  Compound C, because abscisic acid inhibits the active transport of potassium ions and thus closes the stomata, which will interfere with CO2 uptake and H2O transport. 
C)  Compound B, because it ties up free polypeptides and proteins in the soil, preventing their uptake by plants, which is critical for plant growth. 
A)  Compound A, because these minerals will act as toxins to the plant as they are absorbed through the roots. 
B)  Compound C, because abscisic acid inhibits the active transport of potassium ions and thus closes the stomata, which will interfere with CO2 uptake and H2O transport. 
C)  Compound B, because it ties up free polypeptides and proteins in the soil, preventing their uptake by plants, which is critical for plant growth.

Question 20

Why can't plants use N2 directly as a nutrient?

Accepted Answer

A)  Plants lack the enzymes necessary to convert N2 into NO3-or NH4+. 
B)  Plants must use NO3- to carry out nitrogen fixation. 
C)  N2 diffuses out of leaves as quickly as it diffuses in, so it has to be "fixed" to remain in leaves. 
D)  The N2 molecule is too large to enter the stomata. 
E)  Most soils are depleted of N2 as a nutrient. 
A)  Plants lack the enzymes necessary to convert N2 into NO3-or NH4+. 
B)  Plants must use NO3- to carry out nitrogen fixation. 
C)  N2 diffuses out of leaves as quickly as it diffuses in, so it has to be "fixed" to remain in leaves. 
D)  The N2 molecule is too large to enter the stomata. 
E)  Most soils are depleted of N2 as a nutrient.

Exam 44: Plant Anatomy and Nutrient Transport

What type of tissue transports sugars (the product of photosynthesis) throughout the plant?

The guard cells shown in this figure have

Which of the following would you be unable to locate in xylem tissue?

Of the major tissue systems associated with land plants, the _ tissue system covers the outer surface of the primary plant.

Most flowering plants grow throughout their lives. This type of growth is known as

Parenchyma tissue is a component of the _ _ tissue system.

Under the influence of hormones, branch roots emerge from the of a growing root.

The concentration of nutrients in plants is approximately the same as the concentration of nutrients in the surrounding soil.

Which of the following is a common function of stems but NOT of roots?

As an oak tree ages, the trunk becomes thicker and woodier due to growth.

Water- conducting cells that have a small diameter and tapered ends are called

You have been asked by your instructor to go to the greenhouse and select a plant that exhibits secondary growth. Which of the following plants would you choose?

Because most of the trunk of a tree is made of xylem, it is safe to say that most of the tissue in a tree is

Which of the following is NOT true of sclerenchyma tissue?

The formation of sieve plates between phloem sieve- tube elements allows

Which of these pathways best summarizes the route of a mineral that is absorbed by a plant?

Which of the following statements is incorrect with regard to xylem tissue?

Most of a carrot, which is adapted for carbohydrate storage, is

Why can't plants use N2 directly as a nutrient?

An Introduction to Life on Earth

Atoms, Molecules, and Life

Biological Molecules

Cell Structure and Function

Cell Membrane Structure and Function

Energy Flow in the Life of a Cell

Capturing Solar Energy: Photosynthesis

Harvesting Energy: Glycolysis and Cellular Respiration

Cellular Reproduction

Meiosis: the Basis of Sexual Reproduction

Patterns of Inheritance

Dna: the Molecule of Heredity

Gene Expression and Regulation

Biotechnology

Principles of Evolution

How Populations Evolve

The Origin of Species

The History of Life

Systematics: Seeking Order Amid Diversity

The Diversity of Prokaryotes and Viruses

The Diversity of Protists

The Diversity of Plants

The Diversity of Fungi

Animal Diversity I: Invertebrates

Animal Diversity II: Vertebrates

Animal Behavior

Population Growth and Regulation

Community Interactions

Energy Flow and Nutrient Cycling in Ecosystems

Earths Diverse Ecosystems

Conserving Earths Biodiversity

Homeostasis and the Organization of the Animal Body

Circulation

Respiration

Nutrition and Digestion

The Urinary System

Defenses Against Disease

Chemical Control of the Animal Body: the Endocrine System

The Nervous System

The Senses

Action and Support: the Muscles and Skeleton

Animal Reproduction

Animal Development

Plant Reproduction and Development

Plant Responses to the Environment

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