Question 1

When microbes live independently but cooperate and share nutrients,it is called ________.

Accepted Answer

A)  symbiosis
B)  satellitism
C)  antibiosis
D)  mutualism
E)  synergismF) None of the above
G) All of the above

Question 2

The production of antibiotics is a form of antagonism called ________.

Accepted Answer

A)  symbiosis
B)  satellitism
C)  antibiosis
D)  mutualism
E)  synergismF) C) and E)
G) All of the above

Question 3

Microorganisms require large quantities of ________ for use in cell structure and metabolism.

Accepted Answer

A)  elements
B)  macronutrients
C)  water
D)  growth factors
E)  trace elementsF) None of the above
G) A) and E)

Question 4

Bacteria have an average generation time of 24 hours.

Accepted Answer

A) True 
 B)False

Question 5

Most of the dry weight of a microbial cell is from ________.

Accepted Answer

A)  inorganic compounds
B)  minerals
C)  water
D)  organic compounds
E)  saltsF) D) and E)
G) A) and B) D

Question 6

The E.coli that normally live in the human large intestines and produce vitamin K for the body to use would best be termed a ________ relationship.

Accepted Answer

A)  parasitic
B)  saprobic
C)  commensal
D)  mutualistic
E)  None of the choices are correct.F) B) and C)
G) C) and D)

Question 7

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) A) and B)

Question 8

An 85-year-old female in a long-term care facility is prescribed verapamil for blood pressure management twice daily. The medication is classified as a calcium channel blocker.
-Which of the following describes the mechanism of action of calcium channel blockers?

Accepted Answer

A)  Relaxation of arterial smooth muscle
B)  Relaxation of venous smooth muscle
C)  Relaxation of venous smooth muscle and reduction of impulse conduction
D)  Relaxation of arterial smooth muscle and reduction of impulse conductionE) B) and D)
F) None of the above

Question 9

The term photoautotroph refers to an organism that  ________.

Accepted Answer

A)  is a decomposer
B)  must obtain organic compounds for its carbon needs
C)  gets energy from sunlight
D)  gets energy by oxidizing chemical compounds
E)  does not need a carbon sourceF) B) and E)
G) A) and B)

Question 10

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) B) and C)
G) A) and E) A

Question 11

An 85-year-old female in a long-term care facility is prescribed verapamil for blood pressure management twice daily. The medication is classified as a calcium channel blocker.
-The RN is familiar with the action of calcium channel blockers.By inhibiting the passage of calcium through ion channels,the drug targets which of the following processes?

Accepted Answer

A)  Diffusion
B)  Active transport
C)  Passive transport
D)  OsmosisE) B) and C)
F) A) and C) C

Question 12

Which of the following require the cell to use ATP?

Accepted Answer

A)  Facilitated diffusion
B)  Diffusion
C)  Endocytosis
D)  Osmosis
E)  None of the choices are correct.F) B) and C)
G) A) and E)

Question 13

Archaea,as a group,are not pathogens.This is because ________.

Accepted Answer

A)  they evolved without mammals
B)  mammals evolved special defenses against them
C)  mammalian hosts do not meet their environmental requirements
D)  they are outcompeted by natural flora
E)  None of the choices are correctF) All of the above
G) A) and B)

Question 14

Nutrient absorption is mediated by the ________.

Accepted Answer

A)  cell wall
B)  peptidoglycan layer
C)  proteins in the periplasmic space
D)  cell membrane
E)  nuclear membraneF) B) and E)
G) D) and E)

Question 15

Cultures of a bacterial species were incubated out on the incubator shelf,in an anaerobic jar,and in a candle jar.After incubation,there was moderate growth of cultures in the candle and anaerobic jars,but heavy growth of the culture on the incubator shelf.This species is a(n) ________.

Accepted Answer

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

Question 16

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) All of the above
G) A) and E)

Question 17

A microorganism that does not have catalase or superoxide dismutase would find it difficult to live in an environment with ________.

Accepted Answer

A)  carbon dioxide
B)  oxygen
C)  high salt
D)  temperatures above 37°C
E)  high acidityF) All of the above
G) B) and D)

Question 18

Bacteria living in a freshwater stream that are moved to salty seawater would  ________.

Accepted Answer

A)  be in a hypotonic solution
B)  gain water
C)  be in an isotonic solution
D)  shrivel
E)  None of the choices are correct.F) A) and C)
G) A) and B)

Question 19

Anaerobes can be cultured in a CO₂ environment.

Accepted Answer

A) True 
 B)False

Question 20

Diffusion of water through a semipermeable membrane is called ________.

Accepted Answer

A)  facilitated diffusion
B)  diffusion
C)  active transport
D)  osmosis
E)  endocytosisF) All of the above
G) A) and B)

Exam 6: Microbial Nutrition and Growth

When microbes live independently but cooperate and share nutrients,it is called ________.

Correct Answer
verified

The production of antibiotics is a form of antagonism called ________.

Correct Answer
verified

Microorganisms require large quantities of ________ for use in cell structure and metabolism.

Correct Answer
verified

Bacteria have an average generation time of 24 hours.

Correct Answer
verified

Most of the dry weight of a microbial cell is from ________.

Correct Answer
verified
D

The E.coli that normally live in the human large intestines and produce vitamin K for the body to use would best be termed a ________ relationship.

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 85-year-old female in a long-term care facility is prescribed verapamil for blood pressure management twice daily. The medication is classified as a calcium channel blocker. -Which of the following describes the mechanism of action of calcium channel blockers?

Correct Answer
verified

The term photoautotroph refers to an organism that ________.

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
A

Correct Answer
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C

Which of the following require the cell to use ATP?

Correct Answer
verified

Archaea,as a group,are not pathogens.This is because ________.

Correct Answer
verified

Nutrient absorption is mediated by the ________.

Correct Answer
verified

Cultures of a bacterial species were incubated out on the incubator shelf,in an anaerobic jar,and in a candle jar.After incubation,there was moderate growth of cultures in the candle and anaerobic jars,but heavy growth of the culture on the incubator shelf.This species is a(n) ________.

Correct Answer
verified

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

Correct Answer
verified

A microorganism that does not have catalase or superoxide dismutase would find it difficult to live in an environment with ________.

Correct Answer
verified

Bacteria living in a freshwater stream that are moved to salty seawater would ________.

Correct Answer
verified

Anaerobes can be cultured in a CO₂ environment.

Correct Answer
verified

Diffusion of water through a semipermeable membrane is called ________.

Correct Answer
verified

Exam 6: Microbial Nutrition and Growth

When microbes live independently but cooperate and share nutrients,it is called ________.

Correct AnswerverifiedShow Answer

The production of antibiotics is a form of antagonism called ________.

Correct AnswerverifiedShow Answer

Microorganisms require large quantities of ________ for use in cell structure and metabolism.

Correct AnswerverifiedShow Answer

Bacteria have an average generation time of 24 hours.

Correct AnswerverifiedShow Answer

Most of the dry weight of a microbial cell is from ________.

Correct AnswerverifiedD

The E.coli that normally live in the human large intestines and produce vitamin K for the body to use would best be termed a ________ relationship.

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 85-year-old female in a long-term care facility is prescribed verapamil for blood pressure management twice daily. The medication is classified as a calcium channel blocker. -Which of the following describes the mechanism of action of calcium channel blockers?

Correct AnswerverifiedShow Answer

The term photoautotroph refers to an organism that ________.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedA

Correct AnswerverifiedC

Which of the following require the cell to use ATP?

Correct AnswerverifiedShow Answer

Archaea,as a group,are not pathogens.This is because ________.

Correct AnswerverifiedShow Answer

Nutrient absorption is mediated by the ________.

Correct AnswerverifiedShow Answer

Cultures of a bacterial species were incubated out on the incubator shelf,in an anaerobic jar,and in a candle jar.After incubation,there was moderate growth of cultures in the candle and anaerobic jars,but heavy growth of the culture on the incubator shelf.This species is a(n) ________.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

A microorganism that does not have catalase or superoxide dismutase would find it difficult to live in an environment with ________.

Correct AnswerverifiedShow Answer

Bacteria living in a freshwater stream that are moved to salty seawater would ________.

Correct AnswerverifiedShow Answer

Anaerobes can be cultured in a CO₂ environment.

Correct AnswerverifiedShow Answer

Diffusion of water through a semipermeable membrane is called ________.

Correct AnswerverifiedShow Answer

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D

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A

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C

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