The effect of damage to the control leaf. Introduction: Infectious diseases or infections are caused by pathogens like fungi , parasites , viruses or bacteria that can affect an organism indirectly or directly. Symptoms of disease depend on the type of organism responsible for causing the infection. Viral particles generally enter the plant host through any abrasions on the stem or leaves of the plant.

Question

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Answer 1

Question

Definition Definition Organism that lives in the body of another organism and obtains food at the expense of the host. A parasite can directly or indirect harm the host. There are two kinds of parasites: internal and external. An internal parasite lives inside another organism and is known as an endoparasite. An external parasite lives on the body surface of the host and is known as an ectoparasite. Protozoa and helminths are examples of major human parasites.

Chapter 38, Problem 1Q

Summary Introduction

To analyze:

The effect of damage to the control leaf.

Introduction:

Infectious diseases or infections are caused by pathogens like fungi, parasites, viruses or bacteria that can affect an organism indirectly or directly. Symptoms of disease depend on the type of organism responsible for causing the infection. Viral particles generally enter the plant host through any abrasions on the stem or leaves of the plant.

Expert Solution & Answer

Explanation of Solution

A viral infection is either localized or systemic depending on if it is limited to the affected area only or spreads throughout the body of the host, respectively.

While studying the effect of viral infections on plants, some leaves are kept as control (not affected) to compare the changes in the virally infected leaves.

If control leaves are damaged initially, the virus may also enter the control leaves and thus can affect it. This results in loss of control of the experiment and the changes due to viral infection cannot be studied.

Conclusion

If the control leaf was damaged, the viral particle may also infect the control leaf and consequently, the effect of a viral infection cannot be compared with uninfected control.

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Answer 2

Question

Definition Definition Organism that lives in the body of another organism and obtains food at the expense of the host. A parasite can directly or indirect harm the host. There are two kinds of parasites: internal and external. An internal parasite lives inside another organism and is known as an endoparasite. An external parasite lives on the body surface of the host and is known as an ectoparasite. Protozoa and helminths are examples of major human parasites.

Chapter 38, Problem 1Q

Summary Introduction

To analyze:

The effect of damage to the control leaf.

Introduction:

Infectious diseases or infections are caused by pathogens like fungi, parasites, viruses or bacteria that can affect an organism indirectly or directly. Symptoms of disease depend on the type of organism responsible for causing the infection. Viral particles generally enter the plant host through any abrasions on the stem or leaves of the plant.

Expert Solution & Answer

Explanation of Solution

A viral infection is either localized or systemic depending on if it is limited to the affected area only or spreads throughout the body of the host, respectively.

While studying the effect of viral infections on plants, some leaves are kept as control (not affected) to compare the changes in the virally infected leaves.

If control leaves are damaged initially, the virus may also enter the control leaves and thus can affect it. This results in loss of control of the experiment and the changes due to viral infection cannot be studied.

Conclusion

If the control leaf was damaged, the viral particle may also infect the control leaf and consequently, the effect of a viral infection cannot be compared with uninfected control.

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Answer 3

Question

Definition Definition Organism that lives in the body of another organism and obtains food at the expense of the host. A parasite can directly or indirect harm the host. There are two kinds of parasites: internal and external. An internal parasite lives inside another organism and is known as an endoparasite. An external parasite lives on the body surface of the host and is known as an ectoparasite. Protozoa and helminths are examples of major human parasites.

Chapter 38, Problem 1Q

Summary Introduction

To analyze:

The effect of damage to the control leaf.

Introduction:

Infectious diseases or infections are caused by pathogens like fungi, parasites, viruses or bacteria that can affect an organism indirectly or directly. Symptoms of disease depend on the type of organism responsible for causing the infection. Viral particles generally enter the plant host through any abrasions on the stem or leaves of the plant.

Expert Solution & Answer

Explanation of Solution

A viral infection is either localized or systemic depending on if it is limited to the affected area only or spreads throughout the body of the host, respectively.

While studying the effect of viral infections on plants, some leaves are kept as control (not affected) to compare the changes in the virally infected leaves.

If control leaves are damaged initially, the virus may also enter the control leaves and thus can affect it. This results in loss of control of the experiment and the changes due to viral infection cannot be studied.

Conclusion

If the control leaf was damaged, the viral particle may also infect the control leaf and consequently, the effect of a viral infection cannot be compared with uninfected control.

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Answer 4

Question

Definition Definition Organism that lives in the body of another organism and obtains food at the expense of the host. A parasite can directly or indirect harm the host. There are two kinds of parasites: internal and external. An internal parasite lives inside another organism and is known as an endoparasite. An external parasite lives on the body surface of the host and is known as an ectoparasite. Protozoa and helminths are examples of major human parasites.

Chapter 38, Problem 1Q

Summary Introduction

To analyze:

The effect of damage to the control leaf.

Introduction:

Infectious diseases or infections are caused by pathogens like fungi, parasites, viruses or bacteria that can affect an organism indirectly or directly. Symptoms of disease depend on the type of organism responsible for causing the infection. Viral particles generally enter the plant host through any abrasions on the stem or leaves of the plant.

Expert Solution & Answer

Explanation of Solution

A viral infection is either localized or systemic depending on if it is limited to the affected area only or spreads throughout the body of the host, respectively.

While studying the effect of viral infections on plants, some leaves are kept as control (not affected) to compare the changes in the virally infected leaves.

If control leaves are damaged initially, the virus may also enter the control leaves and thus can affect it. This results in loss of control of the experiment and the changes due to viral infection cannot be studied.

Conclusion

If the control leaf was damaged, the viral particle may also infect the control leaf and consequently, the effect of a viral infection cannot be compared with uninfected control.

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Answer 5

Chapter 38, Problem 1Q

Summary Introduction

To analyze:

The effect of damage to the control leaf.

Introduction:

Infectious diseases or infections are caused by pathogens like fungi, parasites, viruses or bacteria that can affect an organism indirectly or directly. Symptoms of disease depend on the type of organism responsible for causing the infection. Viral particles generally enter the plant host through any abrasions on the stem or leaves of the plant.

Expert Solution & Answer

Explanation of Solution

A viral infection is either localized or systemic depending on if it is limited to the affected area only or spreads throughout the body of the host, respectively.

While studying the effect of viral infections on plants, some leaves are kept as control (not affected) to compare the changes in the virally infected leaves.

If control leaves are damaged initially, the virus may also enter the control leaves and thus can affect it. This results in loss of control of the experiment and the changes due to viral infection cannot be studied.

Conclusion

If the control leaf was damaged, the viral particle may also infect the control leaf and consequently, the effect of a viral infection cannot be compared with uninfected control.

Answer 6

Chapter 38, Problem 1Q

Summary Introduction

To analyze:

The effect of damage to the control leaf.

Introduction:

Infectious diseases or infections are caused by pathogens like fungi, parasites, viruses or bacteria that can affect an organism indirectly or directly. Symptoms of disease depend on the type of organism responsible for causing the infection. Viral particles generally enter the plant host through any abrasions on the stem or leaves of the plant.

Expert Solution & Answer

Explanation of Solution

A viral infection is either localized or systemic depending on if it is limited to the affected area only or spreads throughout the body of the host, respectively.

While studying the effect of viral infections on plants, some leaves are kept as control (not affected) to compare the changes in the virally infected leaves.

If control leaves are damaged initially, the virus may also enter the control leaves and thus can affect it. This results in loss of control of the experiment and the changes due to viral infection cannot be studied.

Conclusion

If the control leaf was damaged, the viral particle may also infect the control leaf and consequently, the effect of a viral infection cannot be compared with uninfected control.

Answer 7

Chapter 38, Problem 1Q

Summary Introduction

To analyze:

The effect of damage to the control leaf.

Introduction:

Infectious diseases or infections are caused by pathogens like fungi, parasites, viruses or bacteria that can affect an organism indirectly or directly. Symptoms of disease depend on the type of organism responsible for causing the infection. Viral particles generally enter the plant host through any abrasions on the stem or leaves of the plant.

Answer 8

Expert Solution & Answer

Explanation of Solution

A viral infection is either localized or systemic depending on if it is limited to the affected area only or spreads throughout the body of the host, respectively.

While studying the effect of viral infections on plants, some leaves are kept as control (not affected) to compare the changes in the virally infected leaves.

If control leaves are damaged initially, the virus may also enter the control leaves and thus can affect it. This results in loss of control of the experiment and the changes due to viral infection cannot be studied.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Conclusion

If the control leaf was damaged, the viral particle may also infect the control leaf and consequently, the effect of a viral infection cannot be compared with uninfected control.

Answer 12

Ch. 38 - Prob. 1Q Ch. 38 - Prob. 2Q Ch. 38 - Prob. 1CT Ch. 38 - Now could TMV be used to make inexpensive...Ch. 38 - Prob. 1CA

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Explanation of Solution

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Chapter 38 Solutions