Question 1

Generation of new bacillus-shaped cells starts with one cell elongating and terminates when split into two separate bacilli.

Accepted Answer

A) True 
 B)False

Question 2

Growing bacteria that degrade an environmental pollutant,which is also toxic to the cells at artificially high concentrations,might require ________ to obtain a sufficient population for biochemistry studies.

Accepted Answer

A)  a continuous batch culture
B)  a second growth substrate to keep the culture in exponential growth phase
C)  steady state growth kinetics
D)  the use of a chemostatE) A) and B)
F) A) and C)

Question 3

Where would it be best to isolate bacteria from to study the mechanism of the sodium motive force?

Accepted Answer

A)  human gut
B)  hot springs
C)  soda lakes
D)  volcanoesE) All of the above
F) A) and D)

Question 4

An unpressurized autoclave would not be able to sterilize a growth medium with contaminating bacteria but could still pasteurize it.

Accepted Answer

A) True 
 B)False

Question 5

Knowing the concentration of microorganisms in a sample is often an important consideration for environmental,industrial,and medical microbiologists,yet a microscope is sometimes not used to accomplish this task.Explain five major limitations to using a light microscope to directly count microorganisms.

Accepted Answer

All of the following eight are potential...

Question 6

An antiseptic (or germicide) is distinguished from other sterilizing compounds by

Accepted Answer

A)  being able to inhibit growth of microorganisms but not necessarily kill all of them.
B)  being able to be used on living tissues without harm.
C)  its ability to protect from subsequent microbial infections-not just initial sterilization.
D)  killing all bacteria and microscopic fungi but not being effective against viruses.E) None of the above
F) B) and D)

Question 7

A non-aerated or shaken liquid growth medium inoculated with a bacterium is one of the best ways to culture an obligate anaerobe.

Accepted Answer

A) True 
 B)False

Exam 5: Microbial Growth and Control

An unpressurized autoclave would not be able to sterilize a growth medium with contaminating bacteria but could still pasteurize it.

Correct Answer
verified

An antiseptic (or germicide) is distinguished from other sterilizing compounds by

Correct Answer
verified

Generation of new bacillus-shaped cells starts with one cell elongating and terminates when split into two separate bacilli.

Correct Answer
verified

Where would it be best to isolate bacteria from to study the mechanism of the sodium motive force?

Correct Answer
verified

A non-aerated or shaken liquid growth medium inoculated with a bacterium is one of the best ways to culture an obligate anaerobe.

Correct Answer
verified

Correct Answer
verified
All of the following eight are potential...
View Answer

Growing bacteria that degrade an environmental pollutant,which is also toxic to the cells at artificially high concentrations,might require ________ to obtain a sufficient population for biochemistry studies.

Correct Answer
verified

Exam 5: Microbial Growth and Control

An unpressurized autoclave would not be able to sterilize a growth medium with contaminating bacteria but could still pasteurize it.

Correct AnswerverifiedShow Answer

An antiseptic (or germicide) is distinguished from other sterilizing compounds by

Correct AnswerverifiedShow Answer

Generation of new bacillus-shaped cells starts with one cell elongating and terminates when split into two separate bacilli.

Correct AnswerverifiedShow Answer

Where would it be best to isolate bacteria from to study the mechanism of the sodium motive force?

Correct AnswerverifiedShow Answer

A non-aerated or shaken liquid growth medium inoculated with a bacterium is one of the best ways to culture an obligate anaerobe.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedAll of the following eight are potential...View AnswerShow Answer

Growing bacteria that degrade an environmental pollutant,which is also toxic to the cells at artificially high concentrations,might require ________ to obtain a sufficient population for biochemistry studies.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
All of the following eight are potential...
View Answer

Correct Answer
verified