Question 1

A thick outer covering that protects all members of a plant species from pathogens at all times is an example of a(n)_______ defense.

Accepted Answer

The answer of A thick outer covering that protects all...

Question 2

Leaves of a plant may be damaged accidentally-for example,when an animal steps on them.In this situation,the plant does not mobilize its immune defenses;it only does so in case of herbivory.How does the plant tell the difference?

Accepted Answer

A)  Herbivory lasts longer than accidental injury. 
B)  Herbivory is more damaging than accidental injury. 
C)  Herbivores release chemicals that mimic plant reactions. 
D)  Herbivores cause mechanical damage;accidental injury does not. 
E)  Herbivores release elicitors in their saliva,triggering plant reactions. 
A)  Herbivory lasts longer than accidental injury. 
B)  Herbivory is more damaging than accidental injury. 
C)  Herbivores release chemicals that mimic plant reactions. 
D)  Herbivores cause mechanical damage;accidental injury does not. 
E)  Herbivores release elicitors in their saliva,triggering plant reactions.

Question 3

Which adaptation would not be useful to a plant living in a dry environment?

Accepted Answer

A)  A deep taproot 
B)  Airborne roots 
C)  Fleshy leaves 
D)  Proline accumulation 
E)  A shallow but extensive root system 
A)  A deep taproot 
B)  Airborne roots 
C)  Fleshy leaves 
D)  Proline accumulation 
E)  A shallow but extensive root system

Question 4

Which type of organism is not classified as a plant pathogen?

Accepted Answer

A)  Virus 
B)  Fungus 
C)  Protist 
D)  Bacterium 
E)  Herbivore 
A)  Virus 
B)  Fungus 
C)  Protist 
D)  Bacterium 
E)  Herbivore

Question 5

Plant cell receptors that recognize the molecule chitin activate signaling pathways that lead to production of the enzyme chitinase,which breaks down chitin.In this situation,chitin is a(n)_______ and the overall response is called _______ immunity.

Accepted Answer

A)  PAMP;general 
B)  PAMP;specific 
C)  effector;general 
D)  effector;specific 
E)  receptor;specific 
A)  PAMP;general 
B)  PAMP;specific 
C)  effector;general 
D)  effector;specific 
E)  receptor;specific

Exam 28: Plants in the Environment

A thick outer covering that protects all members of a plant species from pathogens at all times is an example of a(n)_______ defense.

Leaves of a plant may be damaged accidentally-for example,when an animal steps on them.In this situation,the plant does not mobilize its immune defenses;it only does so in case of herbivory.How does the plant tell the difference?

Which adaptation would not be useful to a plant living in a dry environment?

Which type of organism is not classified as a plant pathogen?

Plant cell receptors that recognize the molecule chitin activate signaling pathways that lead to production of the enzyme chitinase,which breaks down chitin.In this situation,chitin is a(n)_______ and the overall response is called _______ immunity.

Introduction

The Chemistry and Energy of Life

Nucleic Acids, Proteins, and Enzymes

Cells: the Working Units of Life

Cell Membranes and Signaling

Pathways That Harvest and Store Chemical Energy

The Cell Cycle and Cell Division

Inheritance, Genes, and Chromosomes

DNA and Its Role in Heredity

From Dna to Protein: Gene Expression

Regulation of Gene Expression

Genomes

Biotechnology

Genes, Development, and Evolution

Processes of Evolution

Reconstructing and Using Phylogenies

Speciation

The History of Life on Earth

Bacteria, Archaea, and Viruses

The Origin and Diversification of Eukaryotes

The Evolution of Plants

The Evolution and Diversity of Fungi

Animal Origins and Diversity

The Plant Body

Plant Nutrition and Transport

Plant Growth and Development

Reproduction of Flowering Plants

Fundamentals of Animal Function

Nutrition and Digestion

Breathing

Circulation

Muscle and Movement

Neurons, Sense Organs, and Nervous Systems

Nervous and Endocrine Control

Water and Salts: Excretion

Animal Reproduction

Animal Development

Immunology: Animal Defense Systems

Animal Behavior

The Distribution of Earths Ecological Systems

Populations

Ecological and Evolutionary Consequences of Interactions Within and Among Species

Ecological Communities

The Global Ecosystem

Filters

Plant cell receptors that recognize the molecule chitin activate signaling pathways that lead to production of the enzyme chitinase,which breaks down chitin.In this situation,chitin is a(n)_ and the overall response is called _ immunity.