Question 1

Nitrite is oxidized to nitrate by:

Accepted Answer

A)  Nitrosomonas. 
B)  Nitrobacter. 
C)  ammonifying bacteria and fungi. 
D)  denitrifying bacteria. 
E)  plant roots. 
A)  Nitrosomonas. 
B)  Nitrobacter. 
C)  ammonifying bacteria and fungi. 
D)  denitrifying bacteria. 
E)  plant roots.

Question 2

Which of the following statements concerning cluster roots is FALSE?

Accepted Answer

A)  They are portions of lateral roots. 
B)  They are bottlebrush-like. 
C)  They release phosphatases and protons. 
D)  They release large amounts of malate and citrate. 
E)  They are long-lasting. 
A)  They are portions of lateral roots. 
B)  They are bottlebrush-like. 
C)  They release phosphatases and protons. 
D)  They release large amounts of malate and citrate. 
E)  They are long-lasting.

Question 3

Plants using Strategy II will utilize which of the following for iron mobilization and uptake?

Accepted Answer

A)  a Fe2+ transporter 
B)  pores in the plasma membrane 
C)  the reduction of Fe3+ to Fe2+ 
D)  proton pumps that acidify the rhizosphere 
E)  Fe3+-phytosiderophores 
A)  a Fe2+ transporter 
B)  pores in the plasma membrane 
C)  the reduction of Fe3+ to Fe2+ 
D)  proton pumps that acidify the rhizosphere 
E)  Fe3+-phytosiderophores

Question 4

A single root hair may contain several infection threads.

Accepted Answer

A) True 
 B)False

Question 5

Which of the following is NOT a phloem-mobile element?

Accepted Answer

A)  nitrogen 
B)  magnesium 
C)  phosphorus 
D)  potassium 
E)  iron 
A)  nitrogen 
B)  magnesium 
C)  phosphorus 
D)  potassium 
E)  iron

Question 6

Which of the following soils can hold the greatest amount of water against the action of gravity?

Accepted Answer

A)  silt 
B)  loam 
C)  coarse sand 
D)  fine sand 
E)  clay 
A)  silt 
B)  loam 
C)  coarse sand 
D)  fine sand 
E)  clay

Question 7

In the process of nitrogen fixation, ______ is converted to ______.

Accepted Answer

A)  NH4+; NO3− 
B)  NO3−; NO2− 
C)  N2; NO2− 
D)  N2; NO3− 
E)  N2; NH4+ 
A)  NH4+; NO3− 
B)  NO3−; NO2− 
C)  N2; NO2− 
D)  N2; NO3− 
E)  N2; NH4+

Question 8

______ is the principal source of nitrogen available to crop plants.

Accepted Answer

A)  Organic nitrogen 
B)  Nitrate 
C)  Ammonium 
D)  Glutamine 
E)  Glutamate 
A)  Organic nitrogen 
B)  Nitrate 
C)  Ammonium 
D)  Glutamine 
E)  Glutamate

Nitrite is oxidized to nitrate by:

Which of the following statements concerning cluster roots is FALSE?

Plants using Strategy II will utilize which of the following for iron mobilization and uptake?

A single root hair may contain several infection threads.

Which of the following is NOT a phloem-mobile element?

Which of the following soils can hold the greatest amount of water against the action of gravity?

In the process of nitrogen fixation, is converted to .

______ is the principal source of nitrogen available to crop plants.

Botany: an Introduction

The Molecular Composition of Plant Cells

The Plant Cell and the Cell Cycle

The Movement of Substances Into and Out of Cells

The Flow of Energy

Respiration

Photosynthesis, Light, and Life

Sexual Reproduction and Heredity

The Chemistry of Heredity and Gene Expression

Recombinant Dna Technology, Plant Biotechnology, and Genomics

The Process of Evolution

Systematics: the Science of Biological Diversity

Prokaryotes and Viruses

Fungi

Protists: Algae and Heterotrophic Protists

Bryophytes

Seedless Vascular Plants

Gymnosperms

Introduction to the Angiosperms

Evolution of the Angiosperms

Plants and People

Early Development of the Plant Body

Cells and Tissues of the Plant Body

The Root: Structure and Development

The Shoot: Primary Structure and Development

Secondary Growth in Stems

Regulating Growth and Development: the Plant Hormones

External Factors and Plant Growth

The Movement of Water and Solutes in Plants

The Dynamics of Communities and Ecosystems

Global Ecology

Filters

Exam 29: Plant Nutrition and Soils

Nitrite is oxidized to nitrate by:

Which of the following statements concerning cluster roots is FALSE?

Plants using Strategy II will utilize which of the following for iron mobilization and uptake?

A single root hair may contain several infection threads.

Which of the following is NOT a phloem-mobile element?

Which of the following soils can hold the greatest amount of water against the action of gravity?

In the process of nitrogen fixation, ______ is converted to ______.

______ is the principal source of nitrogen available to crop plants.

Botany: an Introduction

The Molecular Composition of Plant Cells

The Plant Cell and the Cell Cycle

The Movement of Substances Into and Out of Cells

The Flow of Energy

Respiration

Photosynthesis, Light, and Life

Sexual Reproduction and Heredity

The Chemistry of Heredity and Gene Expression

Recombinant Dna Technology, Plant Biotechnology, and Genomics

The Process of Evolution

Systematics: the Science of Biological Diversity

Prokaryotes and Viruses

Fungi

Protists: Algae and Heterotrophic Protists

Bryophytes

Seedless Vascular Plants

Gymnosperms

Introduction to the Angiosperms

Evolution of the Angiosperms

Plants and People

Early Development of the Plant Body

Cells and Tissues of the Plant Body

The Root: Structure and Development

The Shoot: Primary Structure and Development

Secondary Growth in Stems

Regulating Growth and Development: the Plant Hormones

External Factors and Plant Growth

The Movement of Water and Solutes in Plants

The Dynamics of Communities and Ecosystems

Global Ecology

Filters

In the process of nitrogen fixation, is converted to .