The bacteria, which are most appropriate to use in therapy for curing the tumor. Introduction: Cancer is the condition of abnormal and uncontrollable growth of the cells. Treatment of cancer includes surgery and different kinds of therapy, such as chemotherapy and radiotherapy. All these methods have limitations and severe side effects. To overcome these limitations, medical field started using certain bacteria to treat solid tumors. The table given below gives details of characteristics of four bacteria. Name of Bacteria Clostridium novyi Thermus aquaticus Paracoccus denitrificans Trichodesmium thiebautii Characteristics Metabolism Obligate anaerobic Obligate aerobic Facultative anaerobic Facultative anaerobic Gram status + – – – Optimal temperature (°C) 10–40 50–80 5–30 10–30 Typical habitat Terrestrial Aquatic Aquatic Aquatic Miscellaneous Chemotroph Denitrifier Nitrogen fixer °C, Degree Celsius: (+), positive; (–), negative.

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Answer 1

Question

Chapter 25, Problem 2Q

Summary Introduction

To review:

The bacteria, which are most appropriate to use in therapy for curing the tumor.

Introduction:

Cancer is the condition of abnormal and uncontrollable growth of the cells. Treatment of cancer includes surgery and different kinds of therapy, such as chemotherapy and radiotherapy. All these methods have limitations and severe side effects. To overcome these limitations, medical field started using certain bacteria to treat solid tumors.

The table given below gives details of characteristics of four bacteria.

Name of Bacteria Clostridium novyi Thermus aquaticus Paracoccus denitrificans Trichodesmium thiebautii

Characteristics

Metabolism Obligate anaerobic Obligate aerobic Facultative anaerobic Facultative anaerobic

Gram status + – – –

Optimal temperature (°C) 10–40 50–80 5–30 10–30

Typical habitat Terrestrial Aquatic Aquatic Aquatic

Miscellaneous Chemotroph Denitrifier Nitrogen fixer

°C, Degree Celsius: (+), positive; (–), negative.

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Mycoplasmas are bacteria that lack cell walls. On the basis of this structural feature, which statement concerning mycoplasmas should be true? They are gram-negative. They are subject to lysis in hypotonic conditions. They lack a cell membrane as well. They should contain less cellulose than do bacteria that possess cell walls. They possess typical prokaryotic flagella.

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Select all statements that are true regarding members of the genus Mycobacterium. O They contain mycolic acids O They can cause tuberculosis O One species causes tuberculosis O They are proteobactria O They are practically impenetrable by antibiotics O Their cell walls lack peptidoglycan O They are easy and fast to grow under laboratory conditions

Answer 2

Question

Chapter 25, Problem 2Q

Summary Introduction

To review:

The bacteria, which are most appropriate to use in therapy for curing the tumor.

Introduction:

Cancer is the condition of abnormal and uncontrollable growth of the cells. Treatment of cancer includes surgery and different kinds of therapy, such as chemotherapy and radiotherapy. All these methods have limitations and severe side effects. To overcome these limitations, medical field started using certain bacteria to treat solid tumors.

The table given below gives details of characteristics of four bacteria.

Name of Bacteria Clostridium novyi Thermus aquaticus Paracoccus denitrificans Trichodesmium thiebautii

Characteristics

Metabolism Obligate anaerobic Obligate aerobic Facultative anaerobic Facultative anaerobic

Gram status + – – –

Optimal temperature (°C) 10–40 50–80 5–30 10–30

Typical habitat Terrestrial Aquatic Aquatic Aquatic

Miscellaneous Chemotroph Denitrifier Nitrogen fixer

°C, Degree Celsius: (+), positive; (–), negative.

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Answer 3

Question

Chapter 25, Problem 2Q

Summary Introduction

To review:

The bacteria, which are most appropriate to use in therapy for curing the tumor.

Introduction:

Cancer is the condition of abnormal and uncontrollable growth of the cells. Treatment of cancer includes surgery and different kinds of therapy, such as chemotherapy and radiotherapy. All these methods have limitations and severe side effects. To overcome these limitations, medical field started using certain bacteria to treat solid tumors.

The table given below gives details of characteristics of four bacteria.

Name of Bacteria Clostridium novyi Thermus aquaticus Paracoccus denitrificans Trichodesmium thiebautii

Characteristics

Metabolism Obligate anaerobic Obligate aerobic Facultative anaerobic Facultative anaerobic

Gram status + – – –

Optimal temperature (°C) 10–40 50–80 5–30 10–30

Typical habitat Terrestrial Aquatic Aquatic Aquatic

Miscellaneous Chemotroph Denitrifier Nitrogen fixer

°C, Degree Celsius: (+), positive; (–), negative.

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Answer 4

Question

Chapter 25, Problem 2Q

Summary Introduction

To review:

The bacteria, which are most appropriate to use in therapy for curing the tumor.

Introduction:

Cancer is the condition of abnormal and uncontrollable growth of the cells. Treatment of cancer includes surgery and different kinds of therapy, such as chemotherapy and radiotherapy. All these methods have limitations and severe side effects. To overcome these limitations, medical field started using certain bacteria to treat solid tumors.

The table given below gives details of characteristics of four bacteria.

Name of Bacteria Clostridium novyi Thermus aquaticus Paracoccus denitrificans Trichodesmium thiebautii

Characteristics

Metabolism Obligate anaerobic Obligate aerobic Facultative anaerobic Facultative anaerobic

Gram status + – – –

Optimal temperature (°C) 10–40 50–80 5–30 10–30

Typical habitat Terrestrial Aquatic Aquatic Aquatic

Miscellaneous Chemotroph Denitrifier Nitrogen fixer

°C, Degree Celsius: (+), positive; (–), negative.

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Answer 5

Chapter 25, Problem 2Q

Summary Introduction

To review:

The bacteria, which are most appropriate to use in therapy for curing the tumor.

Introduction:

Cancer is the condition of abnormal and uncontrollable growth of the cells. Treatment of cancer includes surgery and different kinds of therapy, such as chemotherapy and radiotherapy. All these methods have limitations and severe side effects. To overcome these limitations, medical field started using certain bacteria to treat solid tumors.

The table given below gives details of characteristics of four bacteria.

Name of Bacteria Clostridium novyi Thermus aquaticus Paracoccus denitrificans Trichodesmium thiebautii

Characteristics

Metabolism Obligate anaerobic Obligate aerobic Facultative anaerobic Facultative anaerobic

Gram status + – – –

Optimal temperature (°C) 10–40 50–80 5–30 10–30

Typical habitat Terrestrial Aquatic Aquatic Aquatic

Miscellaneous Chemotroph Denitrifier Nitrogen fixer

°C, Degree Celsius: (+), positive; (–), negative.

Answer 6

Chapter 25, Problem 2Q

Summary Introduction

To review:

The bacteria, which are most appropriate to use in therapy for curing the tumor.

Introduction:

Cancer is the condition of abnormal and uncontrollable growth of the cells. Treatment of cancer includes surgery and different kinds of therapy, such as chemotherapy and radiotherapy. All these methods have limitations and severe side effects. To overcome these limitations, medical field started using certain bacteria to treat solid tumors.

The table given below gives details of characteristics of four bacteria.

Name of Bacteria Clostridium novyi Thermus aquaticus Paracoccus denitrificans Trichodesmium thiebautii

Characteristics

Metabolism Obligate anaerobic Obligate aerobic Facultative anaerobic Facultative anaerobic

Gram status + – – –

Optimal temperature (°C) 10–40 50–80 5–30 10–30

Typical habitat Terrestrial Aquatic Aquatic Aquatic

Miscellaneous Chemotroph Denitrifier Nitrogen fixer

°C, Degree Celsius: (+), positive; (–), negative.

Answer 7

Chapter 25, Problem 2Q

Summary Introduction

To review:

The bacteria, which are most appropriate to use in therapy for curing the tumor.

Introduction:

Cancer is the condition of abnormal and uncontrollable growth of the cells. Treatment of cancer includes surgery and different kinds of therapy, such as chemotherapy and radiotherapy. All these methods have limitations and severe side effects. To overcome these limitations, medical field started using certain bacteria to treat solid tumors.

The table given below gives details of characteristics of four bacteria.

Name of Bacteria Clostridium novyi Thermus aquaticus Paracoccus denitrificans Trichodesmium thiebautii

Characteristics

Metabolism Obligate anaerobic Obligate aerobic Facultative anaerobic Facultative anaerobic

Gram status + – – –

Optimal temperature (°C) 10–40 50–80 5–30 10–30

Typical habitat Terrestrial Aquatic Aquatic Aquatic

Miscellaneous Chemotroph Denitrifier Nitrogen fixer

°C, Degree Celsius: (+), positive; (–), negative.

Answer 8

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Answer 10

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Answer 11

Ch. 25.1 - Prob. 1R Ch. 25.1 - Prob. 2R Ch. 25.1 - Prob. 3R Ch. 25.2 - Prob. 1R Ch. 25.2 - Prob. 2R Ch. 25.3 - Prob. 1R Ch. 25.3 - Prob. 2R Ch. 25.3 - Prob. 3R Ch. 25.4 - Prob. 1R Ch. 25.4 - Prob. 2R

Solution Summary: The author explains that the obligate anaerobic bacterium Clostridium novyi can be used to treat solid cancer-causing tumors as it can survive under hypoxic condition.

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Chapter 25 Solutions

Name of Bacteria	*Clostridium novyi*	*Thermus aquaticus*	*Paracoccus denitrificans*	*Trichodesmium thiebautii*
Characteristics	*Clostridium novyi*	*Thermus aquaticus*	*Paracoccus denitrificans*	*Trichodesmium thiebautii*
Metabolism	Obligate anaerobic	Obligate aerobic	Facultative anaerobic	Facultative anaerobic
Gram status	+	–	–	–
Optimal temperature (°C)	10–40	50–80	5–30	10–30
Typical habitat	Terrestrial	Aquatic	Aquatic	Aquatic
Miscellaneous		Chemotroph	Denitrifier	Nitrogen fixer