Question 1

An organism that cannot tolerate any oxygen gas in its environment is a(n)

Accepted Answer

A) aerobe. 
B) obligate aerobe. 
C) facultative anaerobe. 
D) microaerophile. 
E) obligate anaerobe. 
A) aerobe. 
B) obligate aerobe. 
C) facultative anaerobe. 
D) microaerophile. 
E) obligate anaerobe. E

Question 2

An organism with a temperature growth range of 45°C to 60°C would be called

Accepted Answer

A) an extremophile. 
B) a thermophile. 
C) a psychrophile. 
D) a facultative psychrophile. 
E) thermoduric. 
A) an extremophile. 
B) a thermophile. 
C) a psychrophile. 
D) a facultative psychrophile. 
E) thermoduric. B

Question 3

A closed culture system is used to determine a population growth curve.

Accepted Answer

A) True 
 B)False  True

Question 4

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) prophase. 
A) lag phase. 
B) log phase. 
C) stationary phase. 
D) death phase. 
E) prophase.

Question 5

The degree of turbidity in a broth culture correlates to the amount of cell growth.

Accepted Answer

A) True 
 B)False

Question 6

The movement of substances from lower to higher concentration across a semipermeable membrane that must have a specific protein carrier and cell expenditure of energy is called

Accepted Answer

A) facilitated diffusion. 
B) diffusion. 
C) active transport. 
D) osmosis. 
E) endocytosis. 
A) facilitated diffusion. 
B) diffusion. 
C) active transport. 
D) osmosis. 
E) endocytosis.

Question 7

A change in one partner in a close relationship that leads to a change in the other partner is

Accepted Answer

A) symbiosis. 
B) coevolution. 
C) antibiosis. 
D) mutualism. 
E) synergism. 
A) symbiosis. 
B) coevolution. 
C) antibiosis. 
D) mutualism. 
E) synergism.

Question 8

The term facultative refers to

Accepted Answer

A) the ability to exist in a wide range of conditions. 
B) existing in a very narrow niche. 
C) using chemicals for energy production. 
D) using light for energy production. 
E) using oxygen for metabolism. 
A) the ability to exist in a wide range of conditions. 
B) existing in a very narrow niche. 
C) using chemicals for energy production. 
D) using light for energy production. 
E) using oxygen for metabolism.

Question 9

The term autotroph refers to an organism that

Accepted Answer

A) uses CO2 for its carbon source. 
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 source. 
A) uses CO2 for its carbon source. 
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 source.

Question 10

An organism that can use gaseous oxygen in metabolism and has the enzymes to process toxic oxygen products is a(n)

Accepted Answer

A) aerobe. 
B) obligate aerobe. 
C) facultative anaerobe. 
D) microaerophile. 
E) obligate anaerobe. 
A) aerobe. 
B) obligate aerobe. 
C) facultative anaerobe. 
D) microaerophile. 
E) obligate anaerobe.

Question 11

Which term refers to a nutrient that is required by a microorganism in large quantities for use in cell structure and metabolism?

Accepted Answer

A) element 
B) macronutrient 
C) growth factor 
D) trace element 
A) element 
B) macronutrient 
C) growth factor 
D) trace element

Question 12

Aerobic respiration is an example of

Accepted Answer

A) photosynthesis. 
B) methanoheterotrophy. 
C) photoheterotrophy. 
D) chemoheterotrophy. 
E) photoautotrophy. 
A) photosynthesis. 
B) methanoheterotrophy. 
C) photoheterotrophy. 
D) chemoheterotrophy. 
E) photoautotrophy.

Question 13

What type of media is used to demonstrate oxygen requirements of microbes?

Accepted Answer

A) blood agar 
B) thioglycollate 
C) sulfite polymyxin sulfadiazine 
D) sodium chloride 
A) blood agar 
B) thioglycollate 
C) sulfite polymyxin sulfadiazine 
D) sodium chloride

Question 14

Transverse binary fission results in 4 daughter cells from 1 parent cell.

Accepted Answer

A) True 
 B)False

Question 15

The term chemotroph refers to an organism that

Accepted Answer

A) uses CO2 for its carbon source. 
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 source. 
A) uses CO2 for its carbon source. 
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 source.

Question 16

A Coulter counter can count viable cells as well as determine the size.

Accepted Answer

A) True 
 B)False

Question 17

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

Accepted Answer

A) now be in a hypotonic solution. 
B) gain water as a result of the move. 
C) now be in a isotonic solution. 
D) shrivel as a result of the move. 
A) now be in a hypotonic solution. 
B) gain water as a result of the move. 
C) now be in a isotonic solution. 
D) shrivel as a result of the move.

Question 18

The time that it takes for a freshly inoculated agar culture to develop visible colonies is principally governed by that species'generation time.

Accepted Answer

A) True 
 B)False

Question 19

Anaerobes can be cultured in a CO2 rich environment, as long as O2 gas is excluded.

Accepted Answer

A) True 
 B)False

Question 20

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/an

Accepted Answer

A) aerobe. 
B) anaerobe. 
C) facultative anaerobe. 
D) microaerophile. 
E) capnophile. 
A) aerobe. 
B) anaerobe. 
C) facultative anaerobe. 
D) microaerophile. 
E) capnophile.

Exam 7: Microbial Nutrition, Ecology, and Growth

An organism that cannot tolerate any oxygen gas in its environment is a(n)

An organism with a temperature growth range of 45°C to 60°C would be called

A closed culture system is used to determine a population growth curve.

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

The degree of turbidity in a broth culture correlates to the amount of cell growth.

The movement of substances from lower to higher concentration across a semipermeable membrane that must have a specific protein carrier and cell expenditure of energy is called

A change in one partner in a close relationship that leads to a change in the other partner is

The term facultative refers to

The term autotroph refers to an organism that

An organism that can use gaseous oxygen in metabolism and has the enzymes to process toxic oxygen products is a(n)

Which term refers to a nutrient that is required by a microorganism in large quantities for use in cell structure and metabolism?

Aerobic respiration is an example of

What type of media is used to demonstrate oxygen requirements of microbes?

Transverse binary fission results in 4 daughter cells from 1 parent cell.

The term chemotroph refers to an organism that

A Coulter counter can count viable cells as well as determine the size.

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

The time that it takes for a freshly inoculated agar culture to develop visible colonies is principally governed by that species'generation time.

Anaerobes can be cultured in a CO2 rich environment, as long as O2 gas is excluded.

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/an

The Main Themes of Microbiology

The Chemistry of Biology

Tools of the Laboratory: Methods of Studying Microorganisms

A Survey of Prokaryotic Cells and Microorganisms

A Survey of Eukaryotic Cells and Microorganisms

An Introduction to Viruses

An Introduction to Microbial Metabolism: the Chemical Crossroads of Life

Microbial Genetics

Genetic Engineering: a Revolution in Molecular Biology

Physical and Chemical Agents for Microbial Control

Drugs, Microbes, Host--The Elements of Chemotherapy

Microbe-Human Interactions: Infection and Disease

An Introduction to Host Defenses and Innate Immunities

Adaptive, Specific Immunity and Immunization

Disorders in Immunity

Procedures for Identifying Pathogens and Diagnosing Infections

The Gram-Positive and Gram-Negative Cocci of Medical Importance

The Gram-Positive Bacilli of Medical Importance

The Gram-Negative Bacilli of Medical Importance

Miscellaneous Bacterial Agents of Disease

The Fungi of Medical Importance

The Parasites of Medical Importance

Introduction to Viruses That Infect Humans: the Dna Viruses

The Rna Viruses That Infect Humans

Environmental Microbiology

Applied and Industrial Microbiology

Filters

Anaerobes can be cultured in a CO₂ rich environment, as long as O₂ gas is excluded.