Question 1

All of the following are true statements about bacterial S-layers EXCEPT:

Accepted Answer

A)  They are commonly found in Gram-positive cells as well as in archaea. 
B)  They are a crystalline layer consisting of protein or glycoprotein. 
C)  They present a formidable physical barrier to predators or parasites. 
D)  They are found in bacteria freshly isolated from natural sources. 
E)  They are found in bacteria isolated from laboratory cultures. 
A)  They are commonly found in Gram-positive cells as well as in archaea. 
B)  They are a crystalline layer consisting of protein or glycoprotein. 
C)  They present a formidable physical barrier to predators or parasites. 
D)  They are found in bacteria freshly isolated from natural sources. 
E)  They are found in bacteria isolated from laboratory cultures.

Question 2

A __________ is a term used to designate a single messenger RNA molecule being translated by multiple ribosomes.

Accepted Answer

A)  coupled 
B)  periplasm 
C)  carboxysome 
D)  thylakoid 
E)  polysome 
A)  coupled 
B)  periplasm 
C)  carboxysome 
D)  thylakoid 
E)  polysome

Question 3

Each dividing nucleoid requires __________ DNA polymerase complexes overall.

Accepted Answer

A)  1 
B)  2 
C)  4 
D)  6 
E)  8 
A)  1 
B)  2 
C)  4 
D)  6 
E)  8

Question 4

__________ reinforce and stiffen membranes in bacteria.

Accepted Answer

A)  Hopanoids 
B)  Plyamines 
C)  Sterols 
D)  Peptidoglycans 
E)  Lipids 
A)  Hopanoids 
B)  Plyamines 
C)  Sterols 
D)  Peptidoglycans 
E)  Lipids

Question 5

The bacterial membrane ATP synthase has two subunits, referred to as F0 and F1. What are the location and the function of each?

Accepted Answer

The F₀ subunit is located withi

Question 6

Profiles of which component of the membrane may be used to identify certain kinds of pathogens?

Accepted Answer

A)  phospholipids 
B)  proteins 
C)  fatty acids 
D)  polysaccharides 
E)  leaflets 
A)  phospholipids 
B)  proteins 
C)  fatty acids 
D)  polysaccharides 
E)  leaflets

Question 7

The partition that is a result of the inward growth of the cell envelope from opposite directions is known as the:

Accepted Answer

A)  divisome 
B)  septum 
C)  wall 
D)  colony 
E)  Z ring 
A)  divisome 
B)  septum 
C)  wall 
D)  colony 
E)  Z ring

Question 8

Which of the following statements about the prokaryotic flagellar motor is incorrect?

Accepted Answer

A)  It is driven by the cell's transmembrane proton current. 
B)  It is embedded in the layers of the cell envelope. 
C)  It is observed by EM. 
D)  It moves with a whiplike motion. 
E)  It is used for chemotaxis. 
A)  It is driven by the cell's transmembrane proton current. 
B)  It is embedded in the layers of the cell envelope. 
C)  It is observed by EM. 
D)  It moves with a whiplike motion. 
E)  It is used for chemotaxis.

Question 9

All of the following are components of peptidoglycan EXCEPT:

Accepted Answer

A)  N-acetylglucosamine 
B)  N-acetylmuramic acid 
C)  lipopolysaccharide 
D)  amino acids 
E)  peptide cross-links 
A)  N-acetylglucosamine 
B)  N-acetylmuramic acid 
C)  lipopolysaccharide 
D)  amino acids 
E)  peptide cross-links

Question 10

Fred Neidhardt carried out experiments to define the proteome of a cell by using:

Accepted Answer

A)  genetic analysis 
B)  X-ray crystallography 
C)  two-dimensional polyacrylamide gel electrophoresis 
D)  protein synthesis 
E)  subcellular fractionation 
A)  genetic analysis 
B)  X-ray crystallography 
C)  two-dimensional polyacrylamide gel electrophoresis 
D)  protein synthesis 
E)  subcellular fractionation

All of the following are true statements about bacterial S-layers EXCEPT:

A __________ is a term used to designate a single messenger RNA molecule being translated by multiple ribosomes.

Each dividing nucleoid requires __________ DNA polymerase complexes overall.

__________ reinforce and stiffen membranes in bacteria.

The bacterial membrane ATP synthase has two subunits, referred to as F₀ and F₁. What are the location and the function of each?

Profiles of which component of the membrane may be used to identify certain kinds of pathogens?

The partition that is a result of the inward growth of the cell envelope from opposite directions is known as the:

Which of the following statements about the prokaryotic flagellar motor is incorrect?

All of the following are components of peptidoglycan EXCEPT:

Fred Neidhardt carried out experiments to define the proteome of a cell by using:

Microbial Life: Origin and Discovery

Observing the Microbial Cell

Bacterial Culture, Growth, and Development

Environmental Influences and Control of Microbial Growth

Virus Structure and Function

Genomes and Chromosomes

Transcription, Translation, and Bioinformatics

Gene Transfer, Mutations, and Genome Evolution

Molecular Regulation

Viral Molecular Biology

Molecular Techniques and Biotechnology

Energetics and Catabolism

Respiration, Lithotrophy, and Photolysis

Biosynthesis

Food and Industrial Microbiology

Origins and Evolution

Bacterial Diversity

Archaeal Diversity

Eukaryotic Diversity

Microbial Ecology

Microbes and the Global Environment

Human Microbiota and Nonspecific Host Defenses

The Adaptive Immune Response

Microbial Pathogenesis

Microbial Diseases

Antimicrobial Chemotherapy

Clinical Microbiology and Epidemiology

Filters

Exam 3: Cell Structure and Function

All of the following are true statements about bacterial S-layers EXCEPT:

A __________ is a term used to designate a single messenger RNA molecule being translated by multiple ribosomes.

Each dividing nucleoid requires __________ DNA polymerase complexes overall.

__________ reinforce and stiffen membranes in bacteria.

The bacterial membrane ATP synthase has two subunits, referred to as F0 and F1. What are the location and the function of each?

Profiles of which component of the membrane may be used to identify certain kinds of pathogens?

The partition that is a result of the inward growth of the cell envelope from opposite directions is known as the:

Which of the following statements about the prokaryotic flagellar motor is incorrect?

All of the following are components of peptidoglycan EXCEPT:

Fred Neidhardt carried out experiments to define the proteome of a cell by using:

Microbial Life: Origin and Discovery

Observing the Microbial Cell

Bacterial Culture, Growth, and Development

Environmental Influences and Control of Microbial Growth

Virus Structure and Function

Genomes and Chromosomes

Transcription, Translation, and Bioinformatics

Gene Transfer, Mutations, and Genome Evolution

Molecular Regulation

Viral Molecular Biology

Molecular Techniques and Biotechnology

Energetics and Catabolism

Respiration, Lithotrophy, and Photolysis

Biosynthesis

Food and Industrial Microbiology

Origins and Evolution

Bacterial Diversity

Archaeal Diversity

Eukaryotic Diversity

Microbial Ecology

Microbes and the Global Environment

Human Microbiota and Nonspecific Host Defenses

The Adaptive Immune Response

Microbial Pathogenesis

Microbial Diseases

Antimicrobial Chemotherapy

Clinical Microbiology and Epidemiology

Filters

The bacterial membrane ATP synthase has two subunits, referred to as F₀ and F₁. What are the location and the function of each?