Question 1

The cytoplasmic membrane of bacteria

Accepted Answer

A) retains the cytoplasm and its contents. 
B) acts as a selectively permeable barrier,allowing some molecules to pass while preventing the movement of others. 
C) is the major site of ATP synthesis in aerobes. 
D)  All of the choices are correct. 
A) retains the cytoplasm and its contents. 
B) acts as a selectively permeable barrier,allowing some molecules to pass while preventing the movement of others. 
C) is the major site of ATP synthesis in aerobes. 
D)  All of the choices are correct.

Question 2

During the assembly of the flagellar filament,the flagellin protein monomers assemble at the cell proximal base of the flagellum.

Accepted Answer

A) True 
 B)False

Question 3

Which of the following is not a major class of growth factors?

Accepted Answer

A) Amino acids 
B) Purines and pyrimidines 
C) Vitamins 
D) Nucleic acids 
A) Amino acids 
B) Purines and pyrimidines 
C) Vitamins 
D) Nucleic acids

Question 4

Gram-positive bacteria have a thinner layer of peptidoglycan than gram-negative bacteria.

Accepted Answer

A) True 
 B)False

Question 5

A pathogenic bacterial species has mutated and is no longer able to synthesize a capsule.Which outcome would you predict?

Accepted Answer

A) The mutated bacteria will be more virulent. 
B) The mutated bacteria will not be able to cause disease as readily. 
C) The mutated bacteria will be protected from plasmolysis in hypertonic environments. 
D) The mutated bacteria will undergo osmotic lysis in hypotonic environments. 
A) The mutated bacteria will be more virulent. 
B) The mutated bacteria will not be able to cause disease as readily. 
C) The mutated bacteria will be protected from plasmolysis in hypertonic environments. 
D) The mutated bacteria will undergo osmotic lysis in hypotonic environments.

Question 6

Bacteria that do not have a fixed shape are said to be __________.

Accepted Answer

The answer of Bacteria that do not have a fixed...

Question 7

The original differentiation of prokaryotes and eukaryotes was based on structures found in prokaryotes that are lacking in eukaryotes.

Accepted Answer

A) True 
 B)False

Question 8

Small circular DNA molecules capable of replicating and containing genes that are useful but not necessary to the bacterium are called __________.

Accepted Answer

The answer of Small circular DNA molecules capable of replicating...

Question 9

__________ __________ are required organic compounds because they are essential cell components or precursors of such components that cannot be synthesized by the organism.(2 words)

Accepted Answer

The answer of __________ __________ are required organic compounds because...

Question 10

Which of the following is a characteristic of active transport?

Accepted Answer

A) Saturable uptake rate 
B) Use of ATP or a proton gradient as a source of metabolic energy 
C) Can move materials against a concentration gradient 
D) All of the choices are correct. 
A) Saturable uptake rate 
B) Use of ATP or a proton gradient as a source of metabolic energy 
C) Can move materials against a concentration gradient 
D) All of the choices are correct.

Question 11

Sterol-like molecules called hopanoids are thought to be important for the structural integrity of many bacteria because of their suspected role in membrane stabilization.

Accepted Answer

A) True 
 B)False

Question 12

The term used to describe bacteria that are rod-shaped is

Accepted Answer

A) coccus. 
B) bacillus. 
C) vibrio. 
D) coccobacillus. 
A) coccus. 
B) bacillus. 
C) vibrio. 
D) coccobacillus.

Question 13

Lipids with polar and nonpolar ends are said to be

Accepted Answer

A) amphipathic. 
B) amphibolic. 
C) bilateral. 
D)  None of the choices are correct. 
A) amphipathic. 
B) amphibolic. 
C) bilateral. 
D)  None of the choices are correct.

Question 14

Nitrogen can be obtained from either organic or inorganic sources.

Accepted Answer

A) True 
 B)False

Question 15

Copper (Cu)is considered a micronutrient.

Accepted Answer

A) True 
 B)False

Question 16

Phosphorus can be obtained from organic sources only.

Accepted Answer

A) True 
 B)False

Question 17

Prokaryotes were once described based on structures that were present in eukaryotes,but absent in prokaryotes.

Accepted Answer

A) True 
 B)False

Question 18

Proteinacious projections from the surface of a bacterium that are used to mediate conjugation are called sex __________,whereas projections that mediate attachment to surfaces such as host cells are called __________.

Accepted Answer

The answer of Proteinacious projections from the surface of a...

Question 19

_______ are the site of protein synthesis in the cell.

Accepted Answer

The answer of _______ are the site of protein synthesis...

Question 20

Transport of two different substances can be linked.If the transport is in the same direction it is called __________; if the transport is in opposite directions it is called __________.

Accepted Answer

The answer of Transport of two different substances can be...

Exam 3: Bacterial Cell Structure

The cytoplasmic membrane of bacteria

During the assembly of the flagellar filament,the flagellin protein monomers assemble at the cell proximal base of the flagellum.

Which of the following is not a major class of growth factors?

Gram-positive bacteria have a thinner layer of peptidoglycan than gram-negative bacteria.

A pathogenic bacterial species has mutated and is no longer able to synthesize a capsule.Which outcome would you predict?

Bacteria that do not have a fixed shape are said to be __________.

The original differentiation of prokaryotes and eukaryotes was based on structures found in prokaryotes that are lacking in eukaryotes.

Small circular DNA molecules capable of replicating and containing genes that are useful but not necessary to the bacterium are called __________.

__________ __________ are required organic compounds because they are essential cell components or precursors of such components that cannot be synthesized by the organism.(2 words)

Which of the following is a characteristic of active transport?

Sterol-like molecules called hopanoids are thought to be important for the structural integrity of many bacteria because of their suspected role in membrane stabilization.

The term used to describe bacteria that are rod-shaped is

Lipids with polar and nonpolar ends are said to be

Nitrogen can be obtained from either organic or inorganic sources.

Copper (Cu)is considered a micronutrient.

Phosphorus can be obtained from organic sources only.

Prokaryotes were once described based on structures that were present in eukaryotes,but absent in prokaryotes.

Proteinacious projections from the surface of a bacterium that are used to mediate conjugation are called sex __________,whereas projections that mediate attachment to surfaces such as host cells are called __________.

_______ are the site of protein synthesis in the cell.

Transport of two different substances can be linked.If the transport is in the same direction it is called __________; if the transport is in opposite directions it is called __________.

The Evolution of Microorganisms and Microbiology

Microscopy

Archaeal Cell Structure

Eukaryotic Cell Structure

Viruses and Other Acellular Infectious Agents

Microbial Growth

Control of Microorganisms in the Environment

Antimicrobial Chemotherapy

Introduction to Metabolism

Catabolism: Energy Release and Conservation

Anabolism: the Use of Energy in Biosynthesis

Bacterial Genome Replication and Expression

Regulation of Bacterial Cellular Processes

Eukaryotic and Archaeal Genome Replication and Expression

Mechanisms of Genetic Variation

Recombinant DNA Technology

Microbial Genomics

Microbial Taxonomy and the Evolution of Diversity

Archaea

The Deinococci, Mollicutes, and Nonproteobacterial Gram-Negative Bacteria

The Proteobacteria

Firmicutes: The Low G-C Gram-Positive Bacteria

Actinobacteria: the High G-C Gram-Positive Bacteria

Protists

Fungi Eumycota

Viruses

Biogeochemical Cycling and Global Climate Change

Methods in Microbial Ecology

Microorganisms in Marine and Freshwater Ecosystems

Microorganisms in Terrestrial Ecosystems

Microbial Interactions

Innate Host Resistance

Adaptive Immunity

Pathogenicity and Infection

Clinical Microbiology and Immunology

Epidemiology and Public Health Microbiology

Human Diseases Caused by Viruses and Prions

Human Diseases Caused by Bacteria

Human Diseases Caused by Fungi and Protists

Microbiology of Food

Biotechnology and Industrial Microbiology

Applied Environmental Microbiology

Filters

are required organic compounds because they are essential cell components or precursors of such components that cannot be synthesized by the organism.(2 words)

Proteinacious projections from the surface of a bacterium that are used to mediate conjugation are called sex ,whereas projections that mediate attachment to surfaces such as host cells are called .

Transport of two different substances can be linked.If the transport is in the same direction it is called ; if the transport is in opposite directions it is called .