Question 1

Which of the following organisms is a normal inhabitant of the upper respiratory tract,but can cause otitis media and meningitis?

Accepted Answer

A) Group B streptococci. 
B) Streptococcus pneumoniae. 
C) Staphylococci. 
D) Escherichia coli. 
E) Normal inhabitants don't cause disease. 
A) Group B streptococci. 
B) Streptococcus pneumoniae. 
C) Staphylococci. 
D) Escherichia coli. 
E) Normal inhabitants don't cause disease.

Question 2

The passage of water from an area of high water concentration to an area of low water concentration is called

Accepted Answer

A) active transport. 
B) facilitated diffusion. 
C) filtration. 
D) osmosis. 
E) none of the above. 
A) active transport. 
B) facilitated diffusion. 
C) filtration. 
D) osmosis. 
E) none of the above.

Question 3

The cell walls of bacteria

Accepted Answer

A) enable them to be pleomorphic. 
B) protect them against penicillin-derived antibiotics. 
C) are single layered,but very thick. 
D) protect the cells against changes in osmotic pressure. 
E) all of the above. 
A) enable them to be pleomorphic. 
B) protect them against penicillin-derived antibiotics. 
C) are single layered,but very thick. 
D) protect the cells against changes in osmotic pressure. 
E) all of the above.

Question 4

Which of the following is TRUE of endospores?

Accepted Answer

A) They can withstand boiling at 100OC. 
B) They are formed under adverse conditions. 
C) Only one endospore is formed from each bacterial cell. 
D) They consist of DNA enclosed in a spore coat. 
E) All of the above. 
A) They can withstand boiling at 100OC. 
B) They are formed under adverse conditions. 
C) Only one endospore is formed from each bacterial cell. 
D) They consist of DNA enclosed in a spore coat. 
E) All of the above.

Question 5

Bacterial cell membranes consist of

Accepted Answer

A) a single layer of phospholipids. 
B) protein molecules embedded in a phospholipid bilayer. 
C) glycoprotein,phospholipid and sterols. 
D) lipopolysaccharide embedded in a phospholipid bilayer. 
E) proteins,peptidoglycan and sterols. 
A) a single layer of phospholipids. 
B) protein molecules embedded in a phospholipid bilayer. 
C) glycoprotein,phospholipid and sterols. 
D) lipopolysaccharide embedded in a phospholipid bilayer. 
E) proteins,peptidoglycan and sterols.

Question 6

During the stationary phase of bacterial growth

Accepted Answer

A) the rate of cell division equals the rate of cell death. 
B) the lack of nutrients means there is no cell replication. 
C) the cells stop growing to produce endospores. 
D) the cells are in a resting phase prior to rapid multiplication. 
E) all of the above. 
A) the rate of cell division equals the rate of cell death. 
B) the lack of nutrients means there is no cell replication. 
C) the cells stop growing to produce endospores. 
D) the cells are in a resting phase prior to rapid multiplication. 
E) all of the above.

Question 7

The Ziehl-Neelson stain is used to

Accepted Answer

A) observe bacteria which have a waxy outer layer. 
B) detect the presence of mycobacteria in sputum. 
C) aid in the diagnosis of tuberculosis. 
D) stain certain bacteria which do not react with the Gram stain. 
E) all of the above. 
A) observe bacteria which have a waxy outer layer. 
B) detect the presence of mycobacteria in sputum. 
C) aid in the diagnosis of tuberculosis. 
D) stain certain bacteria which do not react with the Gram stain. 
E) all of the above.

Which of the following organisms is a normal inhabitant of the upper respiratory tract,but can cause otitis media and meningitis?

The passage of water from an area of high water concentration to an area of low water concentration is called

The cell walls of bacteria

Which of the following is TRUE of endospores?

Bacterial cell membranes consist of

During the stationary phase of bacterial growth

The Ziehl-Neelson stain is used to

The Invisible World

Biological Reactions in Microbial Cells

Genes and Biotechnology

Viruses and Viral Diseases

Eucaryotic Microorganisms: Fungi, protozoa and Multicellular Organisms

Hostmicrobe Interactions and Principles of Disease

Epidemiology: How Diseases Are Spread

The Bodys Defence Systems

Pathogenic Mechanisms and Evasion Strategies of Microorganisms

Principles of Sterilisation and Disinfection

Antimicrobial Therapy

Infection Control in Healthcare Facilities

Issues in Public Health

Microbial Techniques for Diagnosis of Infection

Skin, wound and Eye Infections

Respiratory Tract Infections

Gastrointestinal Tract Infections

Cardiovascular and Multisystem Infections

Infections of the Nervous System

Infections of the Urinary and Reproductive Systems

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Exam 3: Bacteria

Which of the following organisms is a normal inhabitant of the upper respiratory tract,but can cause otitis media and meningitis?

The passage of water from an area of high water concentration to an area of low water concentration is called

The cell walls of bacteria

Which of the following is TRUE of endospores?

Bacterial cell membranes consist of

During the stationary phase of bacterial growth

The Ziehl-Neelson stain is used to

The Invisible World

Biological Reactions in Microbial Cells

Genes and Biotechnology

Viruses and Viral Diseases

Eucaryotic Microorganisms: Fungi, protozoa and Multicellular Organisms

Hostmicrobe Interactions and Principles of Disease

Epidemiology: How Diseases Are Spread

The Bodys Defence Systems

Pathogenic Mechanisms and Evasion Strategies of Microorganisms

Principles of Sterilisation and Disinfection

Antimicrobial Therapy

Infection Control in Healthcare Facilities

Issues in Public Health

Microbial Techniques for Diagnosis of Infection

Skin, wound and Eye Infections

Respiratory Tract Infections

Gastrointestinal Tract Infections

Cardiovascular and Multisystem Infections

Infections of the Nervous System

Infections of the Urinary and Reproductive Systems

Filters