Question 1

MATCHING
Match the root tissue with its description.
a.cortex
e.phloem
b.endodermis
f.pith
c.epidermis
g.xylem
d.pericycle
-gives rise to lateral roots

Accepted Answer

The answer of MATCHING
Match the root tissue with its description.
a.cortex
e.phloem
b.endodermis
f.pith
c.epidermis
g.xylem
d.pericycle
-gives...

Question 2

Plants that are adapted to growing in flooded soils that are depleted of oxygen have:

Accepted Answer

A)  aerial roots. 
B)  contractile roots. 
C)  pneumatophores. 
D)  prop roots. 
E)  buttress roots. 
A)  aerial roots. 
B)  contractile roots. 
C)  pneumatophores. 
D)  prop roots. 
E)  buttress roots.

Question 3

All of the following are true for soil with a low pH except:

Accepted Answer

A)  aluminum is more soluble. 
B)  calcium phosphate becomes less soluble. 
C)  acidic soil can be found in Pygmy forest in California. 
D)  potassium is leached more readily from the soil. 
E)  manganese may be available in toxic concentrations. 
A)  aluminum is more soluble. 
B)  calcium phosphate becomes less soluble. 
C)  acidic soil can be found in Pygmy forest in California. 
D)  potassium is leached more readily from the soil. 
E)  manganese may be available in toxic concentrations.

Question 4

The formation of soil by gradually breaking rock into smaller particles by biological, chemical, and physical processes is known as:

Accepted Answer

A)  erosion. 
B)  inorganic synthesis. 
C)  cation exchange. 
D)  salinization. 
E)  weathering. 
A)  erosion. 
B)  inorganic synthesis. 
C)  cation exchange. 
D)  salinization. 
E)  weathering.

Question 5

The most abundant organisms in soil are:

Accepted Answer

A)  earthworms. 
B)  fungi. 
C)  algae. 
D)  protozoa. 
E)  bacteria. 
A)  earthworms. 
B)  fungi. 
C)  algae. 
D)  protozoa. 
E)  bacteria.

Question 6

The outermost layer of the stele is the pericycle.
____________________

Accepted Answer

A) True 
 B)False

Question 7

MATCHING
Match the root tissue with its description.
a.cortex
e.phloem
b.endodermis
f.pith
c.epidermis
g.xylem
d.pericycle
-located in between the xylem arms

Accepted Answer

The answer of MATCHING
Match the root tissue with its description.
a.cortex
e.phloem
b.endodermis
f.pith
c.epidermis
g.xylem
d.pericycle
-located...

Question 8

The removal of dissolved materials from soil by percolating water is called illuviation.
____________________

Accepted Answer

A) True 
 B)False

Question 9

The partly decayed organic portion of soil is called:

Accepted Answer

A)  silt. 
B)  clay. 
C)  sand. 
D)  humus. 
E)  castings. 
A)  silt. 
B)  clay. 
C)  sand. 
D)  humus. 
E)  castings.

Question 10

Explain how you would distinguish a monocot from a eudicot by looking at the anatomy of their roots.

Accepted Answer

A monocot root differs from a eudicot ro

Question 11

The roots of certain epiphytes are photosynthetic.
____________________

Accepted Answer

A) True 
 B)False

Question 12

An adventitious root is a root that occurs in an unusual location.
____________________

Accepted Answer

A) True 
 B)False

Question 13

Which of the following statements concerning pore spaces is false?

Accepted Answer

A)  Minerals are removed from soil via leaching. 
B)  Water is held in the smaller pores, and air is found in the larger pores. 
C)  They occupy approximately 50% of a soil's volume. 
D)  They typically contain more carbon dioxide than found in the atmosphere. 
E)  Immediately after a heavy rain, most pore spaces remain filled with air. 
A)  Minerals are removed from soil via leaching. 
B)  Water is held in the smaller pores, and air is found in the larger pores. 
C)  They occupy approximately 50% of a soil's volume. 
D)  They typically contain more carbon dioxide than found in the atmosphere. 
E)  Immediately after a heavy rain, most pore spaces remain filled with air.

Question 14

If a plant were grown in a nutrient solution containing all known essential elements except one, this would be an example of:

Accepted Answer

A)  agriculture. 
B)  mutualism. 
C)  weathering. 
D)  hydroponics. 
E)  salinization. 
A)  agriculture. 
B)  mutualism. 
C)  weathering. 
D)  hydroponics. 
E)  salinization.

Question 15

Which is the correct horizontal pathway of water from the soil to the center of the root?

Accepted Answer

A)  epidermis $\rightarrow$root hair $\rightarrow$ cortex $\rightarrow$ pericycle $\rightarrow$ endodermis $\rightarrow$xylem 
B)  epidermis$\rightarrow$ cortex $\rightarrow$pericycle $\rightarrow$ endodermis $\rightarrow$ phloem $\rightarrow$ xylem 
C)  root hair $\rightarrow$epidermis $\rightarrow$ cortex $\rightarrow$ endodermis $\rightarrow$pericycle $\rightarrow$ xylem 
D)  root hair $\rightarrow$ cortex $\rightarrow$ endodermis $\rightarrow$ pericycle $\rightarrow$epidermis $\rightarrow$ xylem 
E)  root hair $\rightarrow$ epidermis $\rightarrow$endodermis $\rightarrow$ cortex $\rightarrow$ xylem $\rightarrow$phloem 
A)  epidermis $\rightarrow$root hair $\rightarrow$ cortex $\rightarrow$ pericycle $\rightarrow$ endodermis $\rightarrow$xylem 
B)  epidermis$\rightarrow$ cortex $\rightarrow$pericycle $\rightarrow$ endodermis $\rightarrow$ phloem $\rightarrow$ xylem 
C)  root hair $\rightarrow$epidermis $\rightarrow$ cortex $\rightarrow$ endodermis $\rightarrow$pericycle $\rightarrow$ xylem 
D)  root hair $\rightarrow$ cortex $\rightarrow$ endodermis $\rightarrow$ pericycle $\rightarrow$epidermis $\rightarrow$ xylem 
E)  root hair $\rightarrow$ epidermis $\rightarrow$endodermis $\rightarrow$ cortex $\rightarrow$ xylem $\rightarrow$phloem

Question 16

Which statement concerning the root epidermis is true?

Accepted Answer

A)  It does not secrete a waxy cuticle over the root hairs. 
B)  It consists of protective tissue several layers thick. 
C)  There are large intercellular spaces among the cells. 
D)  It comprises the bulk of the eudicot root. 
E)  It is the site of storage of surplus sugars produced in the leaves. 
A)  It does not secrete a waxy cuticle over the root hairs. 
B)  It consists of protective tissue several layers thick. 
C)  There are large intercellular spaces among the cells. 
D)  It comprises the bulk of the eudicot root. 
E)  It is the site of storage of surplus sugars produced in the leaves.

Question 17

The center of a primary eudicot root is known as the:

Accepted Answer

A)  phloem. 
B)  symplast. 
C)  cortex. 
D)  pericycle. 
E)  stele. 
A)  phloem. 
B)  symplast. 
C)  cortex. 
D)  pericycle. 
E)  stele.

Question 18

The symplast:

Accepted Answer

A)  greatly increases the surface area of the root. 
B)  is a waterproof band surrounding the endodermis. 
C)  directs the movement of water from one cell's cytoplasm to the next through plasmodesmata. 
D)  secretes suberin, which waterproofs the cells. 
E)  allows nutrient minerals to move against their concentration gradient. 
A)  greatly increases the surface area of the root. 
B)  is a waterproof band surrounding the endodermis. 
C)  directs the movement of water from one cell's cytoplasm to the next through plasmodesmata. 
D)  secretes suberin, which waterproofs the cells. 
E)  allows nutrient minerals to move against their concentration gradient.

Question 19

What are the three elements that are most often limiting factors for plant growth?

Accepted Answer

A)  carbon, potassium, and magnesium 
B)  carbon, oxygen, and nitrogen 
C)  hydrogen, magnesium, and oxygen 
D)  sulfur, calcium, and nitrogen 
E)  nitrogen, phosphorus, and potassium 
A)  carbon, potassium, and magnesium 
B)  carbon, oxygen, and nitrogen 
C)  hydrogen, magnesium, and oxygen 
D)  sulfur, calcium, and nitrogen 
E)  nitrogen, phosphorus, and potassium

Question 20

Minerals move from the innermost layer of the cortex into the stele via:

Accepted Answer

A)  osmosis. 
B)  simple diffusion. 
C)  facilitated diffusion. 
D)  aquaporins. 
E)  active transport. 
A)  osmosis. 
B)  simple diffusion. 
C)  facilitated diffusion. 
D)  aquaporins. 
E)  active transport.

Exam 36: Roots and Mineral Nutrition

MATCHING Match the root tissue with its description. a.cortex e.phloem b.endodermis f.pith c.epidermis g.xylem d.pericycle -gives rise to lateral roots

Plants that are adapted to growing in flooded soils that are depleted of oxygen have:

All of the following are true for soil with a low pH except:

The formation of soil by gradually breaking rock into smaller particles by biological, chemical, and physical processes is known as:

The most abundant organisms in soil are:

The outermost layer of the stele is the pericycle. ____________________

MATCHING Match the root tissue with its description. a.cortex e.phloem b.endodermis f.pith c.epidermis g.xylem d.pericycle -located in between the xylem arms

The removal of dissolved materials from soil by percolating water is called illuviation. ____________________

The partly decayed organic portion of soil is called:

Explain how you would distinguish a monocot from a eudicot by looking at the anatomy of their roots.

The roots of certain epiphytes are photosynthetic. ____________________

An adventitious root is a root that occurs in an unusual location. ____________________

Which of the following statements concerning pore spaces is false?

If a plant were grown in a nutrient solution containing all known essential elements except one, this would be an example of:

Which is the correct horizontal pathway of water from the soil to the center of the root?

Which statement concerning the root epidermis is true?

The center of a primary eudicot root is known as the:

The symplast:

What are the three elements that are most often limiting factors for plant growth?

Minerals move from the innermost layer of the cortex into the stele via:

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

Stem Structure and Transport

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

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