The presence of Vibrio cholerae in water sample and still tested negative in the multiple tube technique. Introduction: Multiple tube technique is used to detect Coliforms in water sample which detect fecal contamination. It is done in three stages, the presumptive test, the confirmation test, and the completion stage.

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Answer 1

Question

Chapter 52, Problem 1Q

Summary Introduction

To analyze:

The presence of Vibrio cholerae in water sample and still tested negative in the multiple tube technique.

Introduction:

Multiple tube technique is used to detect Coliforms in water sample which detect fecal contamination. It is done in three stages, the presumptive test, the confirmation test, and the completion stage.

Expert Solution & Answer

Explanation of Solution

If the water sample gives negative result for Vibrio cholerae, then it does not means that the sample does not contain this pathogen. V. choleraecan enter inside a viable and nonculturable state and then it will not form colonies on culture plates. In such a state, the cell density of V. choleraebecomes very low in water. So, if a very small amount of water sample is taken then, enough cells of this pathogen may not be present in the sample.

Conclusion

Water with high concentration of Vibrio cholera pathogenic bacterium gives negative test result in Multiple tube technique because of the presence of Vibrio cholerae in its viable and nonculturable state.

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Answer 2

Question

Chapter 52, Problem 1Q

Summary Introduction

To analyze:

The presence of Vibrio cholerae in water sample and still tested negative in the multiple tube technique.

Introduction:

Multiple tube technique is used to detect Coliforms in water sample which detect fecal contamination. It is done in three stages, the presumptive test, the confirmation test, and the completion stage.

Expert Solution & Answer

Explanation of Solution

If the water sample gives negative result for Vibrio cholerae, then it does not means that the sample does not contain this pathogen. V. choleraecan enter inside a viable and nonculturable state and then it will not form colonies on culture plates. In such a state, the cell density of V. choleraebecomes very low in water. So, if a very small amount of water sample is taken then, enough cells of this pathogen may not be present in the sample.

Conclusion

Water with high concentration of Vibrio cholera pathogenic bacterium gives negative test result in Multiple tube technique because of the presence of Vibrio cholerae in its viable and nonculturable state.

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Answer 3

Question

Chapter 52, Problem 1Q

Summary Introduction

To analyze:

The presence of Vibrio cholerae in water sample and still tested negative in the multiple tube technique.

Introduction:

Multiple tube technique is used to detect Coliforms in water sample which detect fecal contamination. It is done in three stages, the presumptive test, the confirmation test, and the completion stage.

Expert Solution & Answer

Explanation of Solution

If the water sample gives negative result for Vibrio cholerae, then it does not means that the sample does not contain this pathogen. V. choleraecan enter inside a viable and nonculturable state and then it will not form colonies on culture plates. In such a state, the cell density of V. choleraebecomes very low in water. So, if a very small amount of water sample is taken then, enough cells of this pathogen may not be present in the sample.

Conclusion

Water with high concentration of Vibrio cholera pathogenic bacterium gives negative test result in Multiple tube technique because of the presence of Vibrio cholerae in its viable and nonculturable state.

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Answer 4

Question

Chapter 52, Problem 1Q

Summary Introduction

To analyze:

The presence of Vibrio cholerae in water sample and still tested negative in the multiple tube technique.

Introduction:

Multiple tube technique is used to detect Coliforms in water sample which detect fecal contamination. It is done in three stages, the presumptive test, the confirmation test, and the completion stage.

Expert Solution & Answer

Explanation of Solution

If the water sample gives negative result for Vibrio cholerae, then it does not means that the sample does not contain this pathogen. V. choleraecan enter inside a viable and nonculturable state and then it will not form colonies on culture plates. In such a state, the cell density of V. choleraebecomes very low in water. So, if a very small amount of water sample is taken then, enough cells of this pathogen may not be present in the sample.

Conclusion

Water with high concentration of Vibrio cholera pathogenic bacterium gives negative test result in Multiple tube technique because of the presence of Vibrio cholerae in its viable and nonculturable state.

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Answer 5

Chapter 52, Problem 1Q

Summary Introduction

To analyze:

The presence of Vibrio cholerae in water sample and still tested negative in the multiple tube technique.

Introduction:

Multiple tube technique is used to detect Coliforms in water sample which detect fecal contamination. It is done in three stages, the presumptive test, the confirmation test, and the completion stage.

Expert Solution & Answer

Explanation of Solution

If the water sample gives negative result for Vibrio cholerae, then it does not means that the sample does not contain this pathogen. V. choleraecan enter inside a viable and nonculturable state and then it will not form colonies on culture plates. In such a state, the cell density of V. choleraebecomes very low in water. So, if a very small amount of water sample is taken then, enough cells of this pathogen may not be present in the sample.

Conclusion

Water with high concentration of Vibrio cholera pathogenic bacterium gives negative test result in Multiple tube technique because of the presence of Vibrio cholerae in its viable and nonculturable state.

Answer 6

Chapter 52, Problem 1Q

Summary Introduction

To analyze:

The presence of Vibrio cholerae in water sample and still tested negative in the multiple tube technique.

Introduction:

Multiple tube technique is used to detect Coliforms in water sample which detect fecal contamination. It is done in three stages, the presumptive test, the confirmation test, and the completion stage.

Expert Solution & Answer

Explanation of Solution

If the water sample gives negative result for Vibrio cholerae, then it does not means that the sample does not contain this pathogen. V. choleraecan enter inside a viable and nonculturable state and then it will not form colonies on culture plates. In such a state, the cell density of V. choleraebecomes very low in water. So, if a very small amount of water sample is taken then, enough cells of this pathogen may not be present in the sample.

Conclusion

Water with high concentration of Vibrio cholera pathogenic bacterium gives negative test result in Multiple tube technique because of the presence of Vibrio cholerae in its viable and nonculturable state.

Answer 7

Chapter 52, Problem 1Q

Summary Introduction

To analyze:

The presence of Vibrio cholerae in water sample and still tested negative in the multiple tube technique.

Introduction:

Multiple tube technique is used to detect Coliforms in water sample which detect fecal contamination. It is done in three stages, the presumptive test, the confirmation test, and the completion stage.

Answer 8

Expert Solution & Answer

Explanation of Solution

If the water sample gives negative result for Vibrio cholerae, then it does not means that the sample does not contain this pathogen. V. choleraecan enter inside a viable and nonculturable state and then it will not form colonies on culture plates. In such a state, the cell density of V. choleraebecomes very low in water. So, if a very small amount of water sample is taken then, enough cells of this pathogen may not be present in the sample.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Conclusion

Water with high concentration of Vibrio cholera pathogenic bacterium gives negative test result in Multiple tube technique because of the presence of Vibrio cholerae in its viable and nonculturable state.

Answer 12

Ch. 52 - Prob. 1Q Ch. 52 - Why are coliforms used as indicator organisms if...Ch. 52 - Why isnt a pH indicator needed in the lactose...Ch. 52 - If coliforms are found in a water sample, the...Ch. 52 - Prob. 1CT Ch. 52 - Prob. 2CT Ch. 52 - Prob. 1CA

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Chapter 52 Solutions