Question 1

All of the following could find a location in or on body tissues suitable for growth except ________.

Accepted Answer

A)   psychrophiles
B)   anaerobes
C)   facultative anaerobes
D)   mesophiles
E)   capnophilesF) B) and D)
G) All of the above

Question 2

After binary fission, daughter cells will differ genetically.

Accepted Answer

A) True 
 B)False

Question 3

The phase of the bacterial growth curve in which newly inoculated cells are adjusting to their new environment, metabolizing but not growing, is the ________.

Accepted Answer

A)   lag phase
B)   log phase
C)   stationary phase
D)   death phase
E)   prophaseF) C) and D)
G) A) and D)

Question 4

Diffusion of water through a semipermeable membrane is called ________.

Accepted Answer

A)   facilitated diffusion
B)   diffusion
C)   active transport
D)   osmosis
E)   endocytosisF) A) and E)
G) A) and D)

Question 5

Organisms called ________ live on or in the body of a host and cause some degree of harm.

Accepted Answer

A)   mesophiles
B)   thermophiles
C)   commensals
D)   parasites
E)   halophilesF) C) and E)
G) A) and D)

Question 6

An organism that does not use oxygen in its metabolic pathways but can survive in its presence is a(n)  ________.

Accepted Answer

A)   aerotolerant anaerobe
B)   obligate aerobe
C)   facultative anaerobe
D)   microaerophile
E)   obligate anaerobeF) A) and B)
G) A) and E)

Question 7

When it is important to count the number of cells, determine cell size, and differentiate between dead and live cells, a ________ is used.

Accepted Answer

A)   Coulter counter
B)   flow cytometer
C)   SEM
D)   methylene dye indicatorE) All of the above
F) B) and D)

Question 8

An important mineral ion that is a component of chloroplasts and stabilizer of membranes and ribosomes is ________.

Accepted Answer

A)   iron
B)   zinc
C)   calcium
D)   magnesium
E)   potassiumF) B) and E)
G) A) and E)

Question 9

Bacteria have an average generation time of 24 hours.

Accepted Answer

A) True 
 B)False

Question 10

The RN administers the osmotic diuretic as ordered. Which of the following responses by the patient would indicate the therapeutic effectiveness of the drug?

Accepted Answer

A)   No response to painful stimuli
B)   Minimal response to painful stimuli
C)   Withdrawal to painful stimuli
D)   Spontaneous movementE) A) and D)
F) B) and D)

Question 11

An organism with a temperature growth range of 45°C to 60°C would be called a(n)  ________.

Accepted Answer

A)   extremophile
B)   thermophile
C)   psychrophile
D)   psychrotroph
E)   thermoduricF) C) and D)
G) All of the above

Question 12

Anaerobes can be cultured in a CO2 environment.

Accepted Answer

A) True 
 B)False

Question 13

The generation time for Enterobacter aerogenes during the exponential growth phase is 30 minutes. If a single E. aerogenes cell begins dividing during this phase, how many cells would be present if counted after 5 hours?

Accepted Answer

A)   10 cells
B)   30 cells
C)   512 cells
D)   1024 cells
E)   1 x 1010 cellsF) A) and C)
G) B) and D)

Question 14

Because a hypertonic environment forces water to move out of a cell, it is said to have high osmotic ________.

Accepted Answer

A)   pressure
B)   diffusion
C)   tension
D)   leverageE) A) and B)
F) A) and C)

Question 15

Binary fission results in four daughter cells from one parent cell.

Accepted Answer

A) True 
 B)False

Question 16

Human pathogens fall into the group termed ________.

Accepted Answer

A)   psychrophiles
B)   thermophiles
C)   halophiles
D)   mesophiles
E)   acidophilesF) A) and D)
G) B) and E)

Question 17

The most rapid increase in bacterial growth occurs during which of the following stages?

Accepted Answer

A)   Lag phase
B)   Exponential growth phase
C)   Stationary growth phase
D)   Death phaseE) B) and C)
F) A) and C)

Question 18

Cultures of a bacterial species were incubated on the shelf of a refrigerator, out on a lab bench top, on the shelf of a 37°C incubator, and on the shelf of a 50°C incubator. After incubation, there was no growth at 37°C and 50°C, very slight growth out on the bench top, and abundant growth at refrigeration. What term could be used for this species?

Accepted Answer

A)   Halophile
B)   Mesophile
C)   Anaerobe
D)   Psychrophile
E)   CapnophileF) A) and E)
G) None of the above

Question 19

Which of the following reflects the stages of binary fission in the correct order?

Accepted Answer

A)   Replication of the chromosome, formation of central protein band, septum divides daughter cells
B)   Replication of the chromosome, septum divides daughter cells, formation of central protein band
C)   Septum divides daughter cells, replication of the chromosome, formation of central protein band
D)   Formation of central protein band, septum divides daughter cells, replication of the chromosome
E)   Septum divides daughter cells, formation of central protein band, replication of the chromosomeF) C) and D)
G) B) and E)

Question 20

Which of the following is a characteristic of the death phase of bacterial growth?

Accepted Answer

A)   The patient is experiencing the most severe stage of infection.
B)   The cells are not reproducing.
C)   The population of cells is rapidly increasing.
D)   The population of cells is slowly increasing.E) None of the above
F) A) and B)

Exam 6: Microbial Nutrition and Growth

Anaerobes can be cultured in a CO₂ environment.

Correct Answer
verified

Organisms called ________ live on or in the body of a host and cause some degree of harm.

Correct Answer
verified

Which of the following reflects the stages of binary fission in the correct order?

Correct Answer
verified

The RN administers the osmotic diuretic as ordered. Which of the following responses by the patient would indicate the therapeutic effectiveness of the drug?

Correct Answer
verified

An organism with a temperature growth range of 45°C to 60°C would be called a(n) ________.

Correct Answer
verified

An important mineral ion that is a component of chloroplasts and stabilizer of membranes and ribosomes is ________.

Correct Answer
verified

Binary fission results in four daughter cells from one parent cell.

Correct Answer
verified

Human pathogens fall into the group termed ________.

Correct Answer
verified

The most rapid increase in bacterial growth occurs during which of the following stages?

Correct Answer
verified

Because a hypertonic environment forces water to move out of a cell, it is said to have high osmotic ________.

Correct Answer
verified

The phase of the bacterial growth curve in which newly inoculated cells are adjusting to their new environment, metabolizing but not growing, is the ________.

Correct Answer
verified

When it is important to count the number of cells, determine cell size, and differentiate between dead and live cells, a ________ is used.

Correct Answer
verified

Correct Answer
verified

All of the following could find a location in or on body tissues suitable for growth except ________.

Correct Answer
verified

After binary fission, daughter cells will differ genetically.

Correct Answer
verified

The generation time for Enterobacter aerogenes during the exponential growth phase is 30 minutes. If a single E. aerogenes cell begins dividing during this phase, how many cells would be present if counted after 5 hours?

Correct Answer
verified

Which of the following is a characteristic of the death phase of bacterial growth?

Correct Answer
verified

Bacteria have an average generation time of 24 hours.

Correct Answer
verified

An organism that does not use oxygen in its metabolic pathways but can survive in its presence is a(n) ________.

Correct Answer
verified

Diffusion of water through a semipermeable membrane is called ________.

Correct Answer
verified

Exam 6: Microbial Nutrition and Growth

Anaerobes can be cultured in a CO2 environment.

Correct AnswerverifiedShow Answer

Organisms called ________ live on or in the body of a host and cause some degree of harm.

Correct AnswerverifiedShow Answer

Which of the following reflects the stages of binary fission in the correct order?

Correct AnswerverifiedShow Answer

The RN administers the osmotic diuretic as ordered. Which of the following responses by the patient would indicate the therapeutic effectiveness of the drug?

Correct AnswerverifiedShow Answer

An organism with a temperature growth range of 45°C to 60°C would be called a(n) ________.

Correct AnswerverifiedShow Answer

An important mineral ion that is a component of chloroplasts and stabilizer of membranes and ribosomes is ________.

Correct AnswerverifiedShow Answer

Binary fission results in four daughter cells from one parent cell.

Correct AnswerverifiedShow Answer

Human pathogens fall into the group termed ________.

Correct AnswerverifiedShow Answer

The most rapid increase in bacterial growth occurs during which of the following stages?

Correct AnswerverifiedShow Answer

Because a hypertonic environment forces water to move out of a cell, it is said to have high osmotic ________.

Correct AnswerverifiedShow Answer

The phase of the bacterial growth curve in which newly inoculated cells are adjusting to their new environment, metabolizing but not growing, is the ________.

Correct AnswerverifiedShow Answer

When it is important to count the number of cells, determine cell size, and differentiate between dead and live cells, a ________ is used.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

All of the following could find a location in or on body tissues suitable for growth except ________.

Correct AnswerverifiedShow Answer

After binary fission, daughter cells will differ genetically.

Correct AnswerverifiedShow Answer

The generation time for Enterobacter aerogenes during the exponential growth phase is 30 minutes. If a single E. aerogenes cell begins dividing during this phase, how many cells would be present if counted after 5 hours?

Correct AnswerverifiedShow Answer

Which of the following is a characteristic of the death phase of bacterial growth?

Correct AnswerverifiedShow Answer

Bacteria have an average generation time of 24 hours.

Correct AnswerverifiedShow Answer

An organism that does not use oxygen in its metabolic pathways but can survive in its presence is a(n) ________.

Correct AnswerverifiedShow Answer

Diffusion of water through a semipermeable membrane is called ________.

Correct AnswerverifiedShow Answer

Anaerobes can be cultured in a CO₂ environment.

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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