Question 1

The physical location in the environment to which an organism has adapted is its

Accepted Answer

A) niche. 
B) habitat. 
C) population. 
D) community. 
E) biome. 
A) niche. 
B) habitat. 
C) population. 
D) community. 
E) biome.

Question 2

Nutrient deficient aquatic ecosystems are called

Accepted Answer

A) eutrophic. 
B) oligotrophic. 
C) epitrophic. 
D) hypotrophic. 
E) autotrophic. 
A) eutrophic. 
B) oligotrophic. 
C) epitrophic. 
D) hypotrophic. 
E) autotrophic.

Question 3

The conversion of nitrate (NO3-)to nitrogen gas (N2)is called

Accepted Answer

A) ammonification. 
B) nitrogen fixation. 
C) photosynthesis. 
D) nitrification. 
E) denitrification. 
A) ammonification. 
B) nitrogen fixation. 
C) photosynthesis. 
D) nitrification. 
E) denitrification.

Question 4

There are very few viruses in aquatic environments.

Accepted Answer

A) True 
 B)False

Question 5

The metabolic process that uses carbon dioxide is:

Accepted Answer

A) nitrification 
B) fermentation 
C) photosynthesis 
D) cell respiration 
A) nitrification 
B) fermentation 
C) photosynthesis 
D) cell respiration

Question 6

Which trophic level forms the base of a food chain?

Accepted Answer

A) primary consumers 
B) quaternary consumers 
C) secondary consumers 
D) primary producers 
E) tertiary consumers 
A) primary consumers 
B) quaternary consumers 
C) secondary consumers 
D) primary producers 
E) tertiary consumers

Question 7

The breakdown of man-made compounds by decomposers is called

Accepted Answer

A) mineralization. 
B) bioremediation. 
C) decomposition. 
D) parasitism. 
E) saprobism. 
A) mineralization. 
B) bioremediation. 
C) decomposition. 
D) parasitism. 
E) saprobism.

Question 8

Organisms that inhabit soil or water,and breakdown and absorb the organic matter of dead organisms are called

Accepted Answer

A) primary consumers. 
B) quaternary consumers. 
C) secondary consumers. 
D) decomposers. 
E) tertiary consumers. 
A) primary consumers. 
B) quaternary consumers. 
C) secondary consumers. 
D) decomposers. 
E) tertiary consumers.

Question 9

The total amount of water in the hydrologic cycle has been decreasing over the last million years.

Accepted Answer

A) True 
 B)False

Question 10

The warmest area of a lake during the summer is the

Accepted Answer

A) epilimnion. 
B) thermocline. 
C) limnion. 
D) benthic zone. 
E) hypolimnion. 
A) epilimnion. 
B) thermocline. 
C) limnion. 
D) benthic zone. 
E) hypolimnion.

Question 11

The science called _________ involves the study of interactions between microbes and their environment and how those interactions affect the earth.

Accepted Answer

A) applied microbiology 
B) biotechnology 
C) bioengineering 
D) microbial ecology 
E) industrial microbiology 
A) applied microbiology 
B) biotechnology 
C) bioengineering 
D) microbial ecology 
E) industrial microbiology

Question 12

Heterotrophs include

Accepted Answer

A) producers,consumers,and decomposers. 
B) consumers and decomposers. 
C) producers only. 
D) consumers only. 
E) producers and consumers. 
A) producers,consumers,and decomposers. 
B) consumers and decomposers. 
C) producers only. 
D) consumers only. 
E) producers and consumers.

Question 13

Carbon dioxide,sulfur dioxide,methane,and nitrous oxide are believed to be _____ gases that could disrupt the temperature balance of the earth.

Accepted Answer

A) active 
B) greenhouse 
C) noble 
D) inert 
A) active 
B) greenhouse 
C) noble 
D) inert

Question 14

Mycorrhizae are the mutualistic relationship between fungi and the roots of certain plants.

Accepted Answer

A) True 
 B)False

Question 15

Why are waterlogged soils often infertile?

Accepted Answer

A) Nitrifying bacteria require oxygen,and the excess water takes the place of oxygen-containing air. 
B) Water molecules are used instead of oxygen for cell respiration. 
C) The lack of physical space in this type of soil blocks bacterial growth. 
D) There is less carbon in waterlogged soil than dry soil. 
A) Nitrifying bacteria require oxygen,and the excess water takes the place of oxygen-containing air. 
B) Water molecules are used instead of oxygen for cell respiration. 
C) The lack of physical space in this type of soil blocks bacterial growth. 
D) There is less carbon in waterlogged soil than dry soil.

Question 16

Which of the following is not true of the phosphorus cycle?

Accepted Answer

A) phosphorus pool is in sedimentary rock 
B) released naturally by erosion and mining 
C) must be phosphatized to enter biological organisms 
D) mineralization occurs by microbes. 
E) Thiobacillus dissolves phosphate rock by producing sulfuric acid. 
A) phosphorus pool is in sedimentary rock 
B) released naturally by erosion and mining 
C) must be phosphatized to enter biological organisms 
D) mineralization occurs by microbes. 
E) Thiobacillus dissolves phosphate rock by producing sulfuric acid.

Question 17

All of the following pertain to red tides except

Accepted Answer

A) due to overgrowth of red algae in water. 
B) due to overgrowth of toxin-producing dinoflagellates. 
C) cause paralytic shellfish poisoning. 
D) involve toxin concentrating in shellfish. 
E) humans can become ill from eating the shellfish. 
A) due to overgrowth of red algae in water. 
B) due to overgrowth of toxin-producing dinoflagellates. 
C) cause paralytic shellfish poisoning. 
D) involve toxin concentrating in shellfish. 
E) humans can become ill from eating the shellfish.

Question 18

The conversion of gaseous nitrogen (N2)to ammonia (NH4+)occurs during

Accepted Answer

A) ammonification. 
B) nitrogen fixation. 
C) photosynthesis. 
D) nitrification. 
E) denitrification. 
A) ammonification. 
B) nitrogen fixation. 
C) photosynthesis. 
D) nitrification. 
E) denitrification.

Question 19

Which of the following genera is a nitrogen-fixing microbe that also photosynthesizes?

Accepted Answer

A) Rhizobium 
B) Nitrobacter 
C) Pseudomonas 
D) Nostoc 
E) Azotobacter 
A) Rhizobium 
B) Nitrobacter 
C) Pseudomonas 
D) Nostoc 
E) Azotobacter

Question 20

You hare preparing a home garden and you want to provide the very best environment for your plants.Which of the following would you add to the potting soil while planting your garden plants?

Accepted Answer

A) mycorrhizae inoculant 
B) sulfur oxidizers 
C) coliform bacteria like 
D) bacteriophages 
E) coli 
A) mycorrhizae inoculant 
B) sulfur oxidizers 
C) coliform bacteria like 
D) bacteriophages 
E) coli

Exam 24: Microbes and the Environment

The physical location in the environment to which an organism has adapted is its

Nutrient deficient aquatic ecosystems are called

The conversion of nitrate (NO3-)to nitrogen gas (N2)is called

There are very few viruses in aquatic environments.

The metabolic process that uses carbon dioxide is:

Which trophic level forms the base of a food chain?

The breakdown of man-made compounds by decomposers is called

Organisms that inhabit soil or water,and breakdown and absorb the organic matter of dead organisms are called

The total amount of water in the hydrologic cycle has been decreasing over the last million years.

The warmest area of a lake during the summer is the

The science called _________ involves the study of interactions between microbes and their environment and how those interactions affect the earth.

Heterotrophs include

Carbon dioxide,sulfur dioxide,methane,and nitrous oxide are believed to be _____ gases that could disrupt the temperature balance of the earth.

Mycorrhizae are the mutualistic relationship between fungi and the roots of certain plants.

Why are waterlogged soils often infertile?

Which of the following is not true of the phosphorus cycle?

All of the following pertain to red tides except

The conversion of gaseous nitrogen (N2)to ammonia (NH4+)occurs during

Which of the following genera is a nitrogen-fixing microbe that also photosynthesizes?

You hare preparing a home garden and you want to provide the very best environment for your plants.Which of the following would you add to the potting soil while planting your garden plants?

The Main Themes of Microbiology

The Chemistry of Biology

Tools of the Laboratory: Methods for the Culturing of Microscopic Analysis of Microorganisms

Prokaryotic Profiles: The Bacteria and Archaea

Eukaryotic Cells and Microorganisms

An Introduction to the Viruses

Microbial Nutrition, Ecology, and Growth

Microbial Metabolism: the Chemical Crossroads of Life

Microbial Genetics

Genetic Engineering and Recombinant Dna

Physical and Chemical Control of Microbes

Drugs, Microbes, host-The Elements of Chemotherapy

Microbe-Human Interactions: Infection and Disease

Host Defenses I: Overview and Nonspecific Defenses

Host Defenses II: Specific Immunity and Immunization

Disorders in Immunity

Diagnosing Infections

Infectious Diseases Affecting the Skin and Eyes

Infectious Diseases Affecting the Nervous System

Infectious Diseases Affecting the Cardiovascular and Lymphatic Systems

Infectious Diseases Affecting the Respiratory System

Infectious Diseases Affecting the Gastrointestinal Tract

Infectious Diseases Affecting the Genitourinary System

Applied Microbiology and Food and Water Safety

Filters

The conversion of nitrate (NO₃^-)to nitrogen gas (N₂)is called

The conversion of gaseous nitrogen (N₂)to ammonia (NH₄⁺)occurs during