Question 1

Substances moving through the root cortex:

Accepted Answer

A)  follow a symplastic pathway only. 
B)  follow an apoplastic pathway only. 
C)  follow both symplastic and apoplastic pathways. 
D)  are unable to travel via cell walls. 
E)  are unable to pass through plasmodesmata. 
A)  follow a symplastic pathway only. 
B)  follow an apoplastic pathway only. 
C)  follow both symplastic and apoplastic pathways. 
D)  are unable to travel via cell walls. 
E)  are unable to pass through plasmodesmata.

Question 2

Endodermal cells that do not become suberized in older roots are called ______ cells.

Accepted Answer

A)  epidermal 
B)  exodermal 
C)  Casparian 
D)  transfer 
E)  passage 
A)  epidermal 
B)  exodermal 
C)  Casparian 
D)  transfer 
E)  passage

Question 3

In seedlings, the total water- and mineral-absorbing surface of the roots usually exceeds the photosynthesizing surface of the leaves and stem.

Accepted Answer

A) True 
 B)False

Question 4

In roots, cells of the pericycle contribute to the vascular cambium.

Accepted Answer

A) True 
 B)False

Question 5

Which of the following statements about feeder roots is FALSE?

Accepted Answer

A)  They are usually found in the lower 15 centimeters of soil. 
B)  They are actively engaged in water uptake. 
C)  They are actively engaged in nutrient uptake. 
D)  They can be heavily infected with mycorrhizal fungi. 
E)  They are also called fine roots. 
A)  They are usually found in the lower 15 centimeters of soil. 
B)  They are actively engaged in water uptake. 
C)  They are actively engaged in nutrient uptake. 
D)  They can be heavily infected with mycorrhizal fungi. 
E)  They are also called fine roots.

Substances moving through the root cortex:

Endodermal cells that do not become suberized in older roots are called ______ cells.

In seedlings, the total water- and mineral-absorbing surface of the roots usually exceeds the photosynthesizing surface of the leaves and stem.

In roots, cells of the pericycle contribute to the vascular cambium.

Which of the following statements about feeder roots is FALSE?

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 Shoot: Primary Structure and Development

Secondary Growth in Stems

Regulating Growth and Development: the Plant Hormones

External Factors and Plant Growth

Plant Nutrition and Soils

The Movement of Water and Solutes in Plants

The Dynamics of Communities and Ecosystems

Global Ecology

Filters

Exam 24: The Root: Structure and Development

Substances moving through the root cortex:

Endodermal cells that do not become suberized in older roots are called ______ cells.

In seedlings, the total water- and mineral-absorbing surface of the roots usually exceeds the photosynthesizing surface of the leaves and stem.

In roots, cells of the pericycle contribute to the vascular cambium.

Which of the following statements about feeder roots is FALSE?

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 Shoot: Primary Structure and Development

Secondary Growth in Stems

Regulating Growth and Development: the Plant Hormones

External Factors and Plant Growth

Plant Nutrition and Soils

The Movement of Water and Solutes in Plants

The Dynamics of Communities and Ecosystems

Global Ecology

Filters