Question 1

All of the following structures contribute to the ability of pathogenic bacteria to cause disease, except

Accepted Answer

A) inclusions. 
B) fimbriae. 
C) capsule. 
D) slime layer. 
E) outer membrane of gram-negative cell walls. 
A) inclusions. 
B) fimbriae. 
C) capsule. 
D) slime layer. 
E) outer membrane of gram-negative cell walls. A

Question 2

Which cell structure is an important agent in modern genetic engineering techniques?

Accepted Answer

A) ribosomes 
B) capsules 
C) plasmids 
D) inclusions 
E) mesosomes 
A) ribosomes 
B) capsules 
C) plasmids 
D) inclusions 
E) mesosomes C

Question 3

Magnetosomes are

Accepted Answer

A) infoldings of the cell membrane. 
B) termed metachromatic granules. 
C) responsible for the heat resistance of endospores. 
D) composed of magnetic iron oxide particles. 
E) found in all bacteria. 
A) infoldings of the cell membrane. 
B) termed metachromatic granules. 
C) responsible for the heat resistance of endospores. 
D) composed of magnetic iron oxide particles. 
E) found in all bacteria. D

Question 4

Endospores are

Accepted Answer

A) metabolically inactive. 
B) resistant to heat and chemical destruction. 
C) resistant to destruction by radiation. 
D) living structures. 
E) All of the choices are correct. 
A) metabolically inactive. 
B) resistant to heat and chemical destruction. 
C) resistant to destruction by radiation. 
D) living structures. 
E) All of the choices are correct.

Question 5

A microoganism has been described to you as living in hot acidic habitats in the waste piles of coal mines that regularly sustain a pH of 1 and a temperature of nearly 60$\circ$C.Which type of organism do you immediately assume it is?

Accepted Answer

A) Gracillucates 
B) Firmicutes 
C) Actinobacteria 
D) Archaea 
E) Spirochaetes 
A) Gracillucates 
B) Firmicutes 
C) Actinobacteria 
D) Archaea 
E) Spirochaetes

Question 6

The _____ stain is used to stain and differentiate Mycobacterium and Nocardia from other bacteria.

Accepted Answer

The answer of The _____ stain is used to stain...

Question 7

_____ is a macromolecule containing alternating N-acetylglucosamine and N-acetylmuramic acid cross-linked by short peptide fragments.

Accepted Answer

The answer of _____ is a macromolecule containing alternating N-acetylglucosamine...

Question 8

Compare the following: bacterial species, bacterial strain, and bacterial type.
Explain the relationship and development of strains and types to a species.

Accepted Answer

Bacterial species, bacterial strain, and

Question 9

Archaea do not have the typical peptidoglycan structure found in bacterial cell walls.

Accepted Answer

A) True 
 B)False

Question 10

The difference in cell wall structure of Mycobacterium and Nocardia compared to the typical gram-positive bacterial cell wall structure is

Accepted Answer

A) more peptidoglycan. 
B) predominance of unique, waxy lipids. 
C) easily decolorized. 
D) presence of lipopolysaccharide. 
E) All of the choices are correct. 
A) more peptidoglycan. 
B) predominance of unique, waxy lipids. 
C) easily decolorized. 
D) presence of lipopolysaccharide. 
E) All of the choices are correct.

Question 11

Peptidoglycan is a unique macromolecule found in bacterial

Accepted Answer

A) cell walls. 
B) cell membranes. 
C) capsules. 
D) slime layers. 
E) inclusions. 
A) cell walls. 
B) cell membranes. 
C) capsules. 
D) slime layers. 
E) inclusions.

Question 12

If you observe rod shaped, pink cells on a slide that had just been gram stained, you can assume that their cell walls contain endotoxin.

Accepted Answer

A) True 
 B)False

Question 13

All of the following are correct about biofilms, except

Accepted Answer

A) they are cooperative associations among several microbial groups. 
B) they play an important role in recycling elements in the earth. 
C) they can colonize medical devices. 
D) an example could be the scum that builds up in toilet bowls. 
E) they are harmless aggregations of microbes. 
A) they are cooperative associations among several microbial groups. 
B) they play an important role in recycling elements in the earth. 
C) they can colonize medical devices. 
D) an example could be the scum that builds up in toilet bowls. 
E) they are harmless aggregations of microbes.

Question 14

When a rod shaped bacteria is short and plump, it is called a:

Accepted Answer

A) spirochete. 
B) pleomorphism. 
C) vibrio. 
D) coccobacillus. 
E) spirillum. 
A) spirochete. 
B) pleomorphism. 
C) vibrio. 
D) coccobacillus. 
E) spirillum.

Question 15

Movement of a cell toward a chemical stimulus is termed _____.

Accepted Answer

The answer of Movement of a cell toward a chemical...

Question 16

All of the following pertain to endotoxins, except they

Accepted Answer

A) are specific bacterial cell wall lipids. 
B) can stimulate fever in the human body. 
C) can cause shock in the human body. 
D) are involved in typhoid fever and some meningitis cases. 
E) are found in acid fast bacterial cell walls. 
A) are specific bacterial cell wall lipids. 
B) can stimulate fever in the human body. 
C) can cause shock in the human body. 
D) are involved in typhoid fever and some meningitis cases. 
E) are found in acid fast bacterial cell walls.

Question 17

Sarcinae refers to

Accepted Answer

A) cocci in pairs. 
B) a cuboidal packet of cells. 
C) groups of endopsores. 
D) coffee-bean shaped rods in pairs. 
E) vibrios in threes. 
A) cocci in pairs. 
B) a cuboidal packet of cells. 
C) groups of endopsores. 
D) coffee-bean shaped rods in pairs. 
E) vibrios in threes.

Question 18

If during the Gram stain procedure, the bacterial cells were viewed immediately after crystal violet was applied, gram-positive cells would be purple but gram-negative cells would be colorless.

Accepted Answer

A) True 
 B)False

Question 19

The site/s for most ATP synthesis in prokaryotic cells is/are the

Accepted Answer

A) ribosomes. 
B) mitochondria. 
C) cell wall. 
D) inclusions. 
E) cell membrane. 
A) ribosomes. 
B) mitochondria. 
C) cell wall. 
D) inclusions. 
E) cell membrane.

Question 20

The most immediate result of destruction of a cell's ribosomes would be

Accepted Answer

A) material would not be able to cross the cell membrane. 
B) protein synthesis would stop. 
C) destruction of the cell's DNA. 
D) formation of glycogen inclusions. 
E) loss of capsule. 
A) material would not be able to cross the cell membrane. 
B) protein synthesis would stop. 
C) destruction of the cell's DNA. 
D) formation of glycogen inclusions. 
E) loss of capsule.

Exam 4: A Survey of Prokaryotic Cells and Microorganisms

All of the following structures contribute to the ability of pathogenic bacteria to cause disease, except

Which cell structure is an important agent in modern genetic engineering techniques?

Magnetosomes are

Endospores are

A microoganism has been described to you as living in hot acidic habitats in the waste piles of coal mines that regularly sustain a pH of 1 and a temperature of nearly 60 ∘\circ∘ C.Which type of organism do you immediately assume it is?

The _____ stain is used to stain and differentiate Mycobacterium and Nocardia from other bacteria.

_____ is a macromolecule containing alternating N-acetylglucosamine and N-acetylmuramic acid cross-linked by short peptide fragments.

Compare the following: bacterial species, bacterial strain, and bacterial type. Explain the relationship and development of strains and types to a species.

Archaea do not have the typical peptidoglycan structure found in bacterial cell walls.

The difference in cell wall structure of Mycobacterium and Nocardia compared to the typical gram-positive bacterial cell wall structure is

Peptidoglycan is a unique macromolecule found in bacterial

If you observe rod shaped, pink cells on a slide that had just been gram stained, you can assume that their cell walls contain endotoxin.

All of the following are correct about biofilms, except

When a rod shaped bacteria is short and plump, it is called a:

Movement of a cell toward a chemical stimulus is termed _____.

All of the following pertain to endotoxins, except they

Sarcinae refers to

If during the Gram stain procedure, the bacterial cells were viewed immediately after crystal violet was applied, gram-positive cells would be purple but gram-negative cells would be colorless.

The site/s for most ATP synthesis in prokaryotic cells is/are the

The most immediate result of destruction of a cell's ribosomes would be

The Main Themes of Microbiology

The Chemistry of Biology

Tools of the Laboratory: Methods of Studying Microorganisms

A Survey of Eukaryotic Cells and Microorganisms

An Introduction to Viruses

Microbial Nutrition, Ecology, and Growth

An Introduction to Microbial Metabolism: the Chemical Crossroads of Life

An Introduction to 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, Disease, and Epidemiology

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

A microoganism has been described to you as living in hot acidic habitats in the waste piles of coal mines that regularly sustain a pH of 1 and a temperature of nearly 60^$\circ$C.Which type of organism do you immediately assume it is?