Bacteria are prokaryotic and unicellular organisms that either present in a cluster of cells or in isolated forms. The cell wall of bacteria is made up of peptidoglycan layer and they lack membrane-bound organelles. Bacteria can grow either in presence of oxygen (aerobes) or in the absence of oxygen (anaerobes).

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Answer 1

Question

Chapter 6, Problem 1MC

Summary Introduction

Introduction:

Bacteria are prokaryotic and unicellular organisms that either present in a cluster of cells or in isolated forms. The cell wall of bacteria is made up of peptidoglycan layer and they lack membrane-bound organelles. Bacteria can grow either in presence of oxygen (aerobes) or in the absence of oxygen (anaerobes).

Expert Solution & Answer

Answer to Problem 1MC

Correct answer:

An aerobic bacterium can be grown in a Petri plate in laboratory conditions.

Therefore, option (b) is correct.

Option (b) is given as “an aerobic bacteria”.

Explanation of Solution

Justify the reason for the correct statement:

Bacterial cells can be cultured in the laboratory by giving them a growth media consisting required amount of nutrients and oxygen by the bacterial cell. A bacterial colony can be grown on agar medium or Petri plate. An aerobic bacterium can grow in presence of oxygen on a Petri plate containing growth medium.

Hence, option (b) is correct.

Justify the reasons for the incorrect statements:

Option (a) is given as “an anaerobic bacterium”.

Anaerobic bacterium needs maintained conditions to grow. The anaerobic bacteria grow only in the absence of oxygen and in an inoculated Petri dish that contains a seal to prevent entry of oxygen. They cannot grow in presence of oxygen in a Petri plate. Hence, it is a wrong answer.

Option (c) is given as “viruses on an agar surface”.

Viruses can grow on special growth media like bacterial cells or on tissues. They cannot be grown on agar in Petri plate. Hence, it is a wrong answer.

Option (d) is given as “all of the above”.

The aerobic bacterium can be grown on Petri plate but other options: anaerobic bacterium and viruses are incorrect as they cannot be grown on Petri plate. Hence, it is a wrong answer.

Hence, options (a), (c), and (d) are incorrect.

Conclusion

The aerobic bacterium which needs oxygen to grow can be cultured on growth medium in Petri plate.

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19. On the diagram below a. Label the three pictures as: DNA; polypeptide; or RNA. b. Label the arrows as: translation or transcription/RNA processing. c. Add the following details to the diagram. Promoter region TATA box Transcription start site Transcription terminator Intron (A,B,C,D) Exons (1,2,3,4,5) Splice sites 5' cap 5' UTR (untranslated region) 3' poly A tail 3' UTR (untranslated region) Translational start (AUG) Translational stop (UGA, UAG, or UAA) N and C ends of polypeptide 0000

Match the letter labels in the figure below to the terms. Some letter labels are not used. MNNNNNNIN M C B A M D F E H K G 8

The diagram below illustrates a quorum sensing pathway from Staphylococcus aureus. Please answer the following questions. 1. Autoinduction is part of the quorum sensing system. Which promoter (P2 or P3) is critical for autoinduction? 2)This staphylococcus aureus grows on human wounds, causing severe infections. You would like to start a clinical trial to treat these wound infections. Please describe: a) What molecule do you recommend for the trial. Why? b) Your trial requires that Staphylococcus aureus be isolated from the wound and submitted to genome sequencing before admittance. Why? What are you testing for? 3) If a mutation arises where the Promoter P3 is constitutively active, how would that influence sensitivity to AIP? Please explain your rationale. 4) This pathway is sensitive to bacterial cell density. Describe two separate mutation that would render the pathway active independent of cell density. Briefly explain your rationale. Mutation 1 Mutation 2

Answer 2

Question

Chapter 6, Problem 1MC

Summary Introduction

Introduction:

Bacteria are prokaryotic and unicellular organisms that either present in a cluster of cells or in isolated forms. The cell wall of bacteria is made up of peptidoglycan layer and they lack membrane-bound organelles. Bacteria can grow either in presence of oxygen (aerobes) or in the absence of oxygen (anaerobes).

Expert Solution & Answer

Answer to Problem 1MC

Correct answer:

An aerobic bacterium can be grown in a Petri plate in laboratory conditions.

Therefore, option (b) is correct.

Option (b) is given as “an aerobic bacteria”.

Explanation of Solution

Justify the reason for the correct statement:

Bacterial cells can be cultured in the laboratory by giving them a growth media consisting required amount of nutrients and oxygen by the bacterial cell. A bacterial colony can be grown on agar medium or Petri plate. An aerobic bacterium can grow in presence of oxygen on a Petri plate containing growth medium.

Hence, option (b) is correct.

Justify the reasons for the incorrect statements:

Option (a) is given as “an anaerobic bacterium”.

Anaerobic bacterium needs maintained conditions to grow. The anaerobic bacteria grow only in the absence of oxygen and in an inoculated Petri dish that contains a seal to prevent entry of oxygen. They cannot grow in presence of oxygen in a Petri plate. Hence, it is a wrong answer.

Option (c) is given as “viruses on an agar surface”.

Viruses can grow on special growth media like bacterial cells or on tissues. They cannot be grown on agar in Petri plate. Hence, it is a wrong answer.

Option (d) is given as “all of the above”.

The aerobic bacterium can be grown on Petri plate but other options: anaerobic bacterium and viruses are incorrect as they cannot be grown on Petri plate. Hence, it is a wrong answer.

Hence, options (a), (c), and (d) are incorrect.

Conclusion

The aerobic bacterium which needs oxygen to grow can be cultured on growth medium in Petri plate.

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Answer 3

Question

Chapter 6, Problem 1MC

Summary Introduction

Introduction:

Bacteria are prokaryotic and unicellular organisms that either present in a cluster of cells or in isolated forms. The cell wall of bacteria is made up of peptidoglycan layer and they lack membrane-bound organelles. Bacteria can grow either in presence of oxygen (aerobes) or in the absence of oxygen (anaerobes).

Expert Solution & Answer

Answer to Problem 1MC

Correct answer:

An aerobic bacterium can be grown in a Petri plate in laboratory conditions.

Therefore, option (b) is correct.

Option (b) is given as “an aerobic bacteria”.

Explanation of Solution

Justify the reason for the correct statement:

Bacterial cells can be cultured in the laboratory by giving them a growth media consisting required amount of nutrients and oxygen by the bacterial cell. A bacterial colony can be grown on agar medium or Petri plate. An aerobic bacterium can grow in presence of oxygen on a Petri plate containing growth medium.

Hence, option (b) is correct.

Justify the reasons for the incorrect statements:

Option (a) is given as “an anaerobic bacterium”.

Anaerobic bacterium needs maintained conditions to grow. The anaerobic bacteria grow only in the absence of oxygen and in an inoculated Petri dish that contains a seal to prevent entry of oxygen. They cannot grow in presence of oxygen in a Petri plate. Hence, it is a wrong answer.

Option (c) is given as “viruses on an agar surface”.

Viruses can grow on special growth media like bacterial cells or on tissues. They cannot be grown on agar in Petri plate. Hence, it is a wrong answer.

Option (d) is given as “all of the above”.

The aerobic bacterium can be grown on Petri plate but other options: anaerobic bacterium and viruses are incorrect as they cannot be grown on Petri plate. Hence, it is a wrong answer.

Hence, options (a), (c), and (d) are incorrect.

Conclusion

The aerobic bacterium which needs oxygen to grow can be cultured on growth medium in Petri plate.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 4

Question

Chapter 6, Problem 1MC

Summary Introduction

Introduction:

Bacteria are prokaryotic and unicellular organisms that either present in a cluster of cells or in isolated forms. The cell wall of bacteria is made up of peptidoglycan layer and they lack membrane-bound organelles. Bacteria can grow either in presence of oxygen (aerobes) or in the absence of oxygen (anaerobes).

Expert Solution & Answer

Answer to Problem 1MC

Correct answer:

An aerobic bacterium can be grown in a Petri plate in laboratory conditions.

Therefore, option (b) is correct.

Option (b) is given as “an aerobic bacteria”.

Explanation of Solution

Justify the reason for the correct statement:

Bacterial cells can be cultured in the laboratory by giving them a growth media consisting required amount of nutrients and oxygen by the bacterial cell. A bacterial colony can be grown on agar medium or Petri plate. An aerobic bacterium can grow in presence of oxygen on a Petri plate containing growth medium.

Hence, option (b) is correct.

Justify the reasons for the incorrect statements:

Option (a) is given as “an anaerobic bacterium”.

Anaerobic bacterium needs maintained conditions to grow. The anaerobic bacteria grow only in the absence of oxygen and in an inoculated Petri dish that contains a seal to prevent entry of oxygen. They cannot grow in presence of oxygen in a Petri plate. Hence, it is a wrong answer.

Option (c) is given as “viruses on an agar surface”.

Viruses can grow on special growth media like bacterial cells or on tissues. They cannot be grown on agar in Petri plate. Hence, it is a wrong answer.

Option (d) is given as “all of the above”.

The aerobic bacterium can be grown on Petri plate but other options: anaerobic bacterium and viruses are incorrect as they cannot be grown on Petri plate. Hence, it is a wrong answer.

Hence, options (a), (c), and (d) are incorrect.

Conclusion

The aerobic bacterium which needs oxygen to grow can be cultured on growth medium in Petri plate.

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Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 5

Chapter 6, Problem 1MC

Summary Introduction

Introduction:

Bacteria are prokaryotic and unicellular organisms that either present in a cluster of cells or in isolated forms. The cell wall of bacteria is made up of peptidoglycan layer and they lack membrane-bound organelles. Bacteria can grow either in presence of oxygen (aerobes) or in the absence of oxygen (anaerobes).

Expert Solution & Answer

Answer to Problem 1MC

Correct answer:

An aerobic bacterium can be grown in a Petri plate in laboratory conditions.

Therefore, option (b) is correct.

Option (b) is given as “an aerobic bacteria”.

Explanation of Solution

Justify the reason for the correct statement:

Bacterial cells can be cultured in the laboratory by giving them a growth media consisting required amount of nutrients and oxygen by the bacterial cell. A bacterial colony can be grown on agar medium or Petri plate. An aerobic bacterium can grow in presence of oxygen on a Petri plate containing growth medium.

Hence, option (b) is correct.

Justify the reasons for the incorrect statements:

Option (a) is given as “an anaerobic bacterium”.

Anaerobic bacterium needs maintained conditions to grow. The anaerobic bacteria grow only in the absence of oxygen and in an inoculated Petri dish that contains a seal to prevent entry of oxygen. They cannot grow in presence of oxygen in a Petri plate. Hence, it is a wrong answer.

Option (c) is given as “viruses on an agar surface”.

Viruses can grow on special growth media like bacterial cells or on tissues. They cannot be grown on agar in Petri plate. Hence, it is a wrong answer.

Option (d) is given as “all of the above”.

The aerobic bacterium can be grown on Petri plate but other options: anaerobic bacterium and viruses are incorrect as they cannot be grown on Petri plate. Hence, it is a wrong answer.

Hence, options (a), (c), and (d) are incorrect.

Conclusion

The aerobic bacterium which needs oxygen to grow can be cultured on growth medium in Petri plate.

Answer 6

Chapter 6, Problem 1MC

Summary Introduction

Introduction:

Bacteria are prokaryotic and unicellular organisms that either present in a cluster of cells or in isolated forms. The cell wall of bacteria is made up of peptidoglycan layer and they lack membrane-bound organelles. Bacteria can grow either in presence of oxygen (aerobes) or in the absence of oxygen (anaerobes).

Expert Solution & Answer

Answer to Problem 1MC

Correct answer:

An aerobic bacterium can be grown in a Petri plate in laboratory conditions.

Therefore, option (b) is correct.

Option (b) is given as “an aerobic bacteria”.

Explanation of Solution

Justify the reason for the correct statement:

Bacterial cells can be cultured in the laboratory by giving them a growth media consisting required amount of nutrients and oxygen by the bacterial cell. A bacterial colony can be grown on agar medium or Petri plate. An aerobic bacterium can grow in presence of oxygen on a Petri plate containing growth medium.

Hence, option (b) is correct.

Justify the reasons for the incorrect statements:

Option (a) is given as “an anaerobic bacterium”.

Anaerobic bacterium needs maintained conditions to grow. The anaerobic bacteria grow only in the absence of oxygen and in an inoculated Petri dish that contains a seal to prevent entry of oxygen. They cannot grow in presence of oxygen in a Petri plate. Hence, it is a wrong answer.

Option (c) is given as “viruses on an agar surface”.

Viruses can grow on special growth media like bacterial cells or on tissues. They cannot be grown on agar in Petri plate. Hence, it is a wrong answer.

Option (d) is given as “all of the above”.

The aerobic bacterium can be grown on Petri plate but other options: anaerobic bacterium and viruses are incorrect as they cannot be grown on Petri plate. Hence, it is a wrong answer.

Hence, options (a), (c), and (d) are incorrect.

Conclusion

The aerobic bacterium which needs oxygen to grow can be cultured on growth medium in Petri plate.

Answer 7

Chapter 6, Problem 1MC

Summary Introduction

Introduction:

Bacteria are prokaryotic and unicellular organisms that either present in a cluster of cells or in isolated forms. The cell wall of bacteria is made up of peptidoglycan layer and they lack membrane-bound organelles. Bacteria can grow either in presence of oxygen (aerobes) or in the absence of oxygen (anaerobes).

Answer 8

Expert Solution & Answer

Answer to Problem 1MC

Correct answer:

An aerobic bacterium can be grown in a Petri plate in laboratory conditions.

Therefore, option (b) is correct.

Option (b) is given as “an aerobic bacteria”.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Explanation of Solution

Justify the reason for the correct statement:

Bacterial cells can be cultured in the laboratory by giving them a growth media consisting required amount of nutrients and oxygen by the bacterial cell. A bacterial colony can be grown on agar medium or Petri plate. An aerobic bacterium can grow in presence of oxygen on a Petri plate containing growth medium.

Hence, option (b) is correct.

Justify the reasons for the incorrect statements:

Option (a) is given as “an anaerobic bacterium”.

Anaerobic bacterium needs maintained conditions to grow. The anaerobic bacteria grow only in the absence of oxygen and in an inoculated Petri dish that contains a seal to prevent entry of oxygen. They cannot grow in presence of oxygen in a Petri plate. Hence, it is a wrong answer.

Option (c) is given as “viruses on an agar surface”.

Viruses can grow on special growth media like bacterial cells or on tissues. They cannot be grown on agar in Petri plate. Hence, it is a wrong answer.

Option (d) is given as “all of the above”.

The aerobic bacterium can be grown on Petri plate but other options: anaerobic bacterium and viruses are incorrect as they cannot be grown on Petri plate. Hence, it is a wrong answer.

Hence, options (a), (c), and (d) are incorrect.

Answer 12

Conclusion

The aerobic bacterium which needs oxygen to grow can be cultured on growth medium in Petri plate.

Answer 13

Ch. 6 - Prob. 1MC Ch. 6 - In the laboratory, a sterile inoculating loop is...Ch. 6 - Superoxide dismutase _____________. a. causes...Ch. 6 - The most reactive of the four toxic forms of...Ch. 6 - Microaerophiles that grow best with a high...Ch. 6 - Prob. 6MC Ch. 6 - Organisms that preferentially may thrive in icy...Ch. 6 - Prob. 8MC Ch. 6 - Prob. 9MC Ch. 6 - In a defined medium, ______________. a. the exact...

Solution Summary: The author explains that an aerobic bacterium can be grown in a Petri plate in laboratory conditions, while anaerobic bacteria can grow in the absence of oxygen.

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