Question 1

A systemic infection is one which

Accepted Answer

A) occurs on the surface of the body. 
B) is contained in one area by an inflammatory reaction. 
C) affects multiple tissues or organs. 
D) can be treated with topical antibiotics. 
E) all of the above. 
A) occurs on the surface of the body. 
B) is contained in one area by an inflammatory reaction. 
C) affects multiple tissues or organs. 
D) can be treated with topical antibiotics. 
E) all of the above.

Question 2

The term 'normal microbiota' refers to microorganisms which

Accepted Answer

A) are found only on hospitalised patients. 
B) normally inhabit parts of the human body. 
C) normally exist in the environment. 
D) are found only on human skin. 
E) never cause disease. 
A) are found only on hospitalised patients. 
B) normally inhabit parts of the human body. 
C) normally exist in the environment. 
D) are found only on human skin. 
E) never cause disease.

Question 3

A parasite is an organism that

Accepted Answer

A) lives on another organism. 
B) derives its nutrients from another living organism. 
C) causes damage to another living organism. 
D) uses a host as a source of nutrients but doesn't kill it. 
E) all of the above. 
A) lives on another organism. 
B) derives its nutrients from another living organism. 
C) causes damage to another living organism. 
D) uses a host as a source of nutrients but doesn't kill it. 
E) all of the above.

Question 4

Which of the following factors increases a person's susceptibility to infection?

Accepted Answer

A) Old age. 
B) Stress. 
C) Damaged skin. 
D) Cancer chemotherapy. 
E) All of the above. 
A) Old age. 
B) Stress. 
C) Damaged skin. 
D) Cancer chemotherapy. 
E) All of the above.

Question 5

An infection that occurs when the body's defences are weakened is called

Accepted Answer

A) contagious. 
B) selective. 
C) opportunistic. 
D) symbiotic. 
E) chronic. 
A) contagious. 
B) selective. 
C) opportunistic. 
D) symbiotic. 
E) chronic.

Question 6

The capacity of a microorganism to cause disease is termed

Accepted Answer

A) endogenous. 
B) opportunistic. 
C) pathogenicity. 
D) exogenous. 
E) susceptibility. 
A) endogenous. 
B) opportunistic. 
C) pathogenicity. 
D) exogenous. 
E) susceptibility.

Question 7

Plaque consists of

Accepted Answer

A) an aggregation of all of the bacteria in the mouth. 
B) a matrix of glycoproteins containing bacteria. 
C) contaminant bacteria in the mouth. 
D) the bacteria responsible for gum disease. 
E) all of the above. 
A) an aggregation of all of the bacteria in the mouth. 
B) a matrix of glycoproteins containing bacteria. 
C) contaminant bacteria in the mouth. 
D) the bacteria responsible for gum disease. 
E) all of the above.

Question 8

The presence of bacteria in the bloodstream without any signs or symptoms is called

Accepted Answer

A) septicaemia. 
B) toxaemia. 
C) leukaemia. 
D) pyaemia. 
E) bacteraemia. 
A) septicaemia. 
B) toxaemia. 
C) leukaemia. 
D) pyaemia. 
E) bacteraemia.

Question 9

During which phase of an illness is a person possibly infectious?

Accepted Answer

A) Incubation period. 
B) Carrier phase. 
C) Acute phase. 
D) Prodromal phase. 
E) All of the above. 
A) Incubation period. 
B) Carrier phase. 
C) Acute phase. 
D) Prodromal phase. 
E) All of the above.

Question 10

The spread of an infection from the throat to the meninges of the brain is termed a

Accepted Answer

A) mixed infection. 
B) disseminated infection. 
C) fatal infection. 
D) localised infection. 
E) chronic infection. 
A) mixed infection. 
B) disseminated infection. 
C) fatal infection. 
D) localised infection. 
E) chronic infection.

Question 11

In a healthy person,which area of the body has a normal microbiota?

Accepted Answer

A) Bladder. 
B) Heart. 
C) Vagina. 
D) Lungs. 
E) Blood. 
A) Bladder. 
B) Heart. 
C) Vagina. 
D) Lungs. 
E) Blood.

Question 12

One of the ways in which the microbiota benefits the host is by

Accepted Answer

A) providing nutrients for the growth of other beneficial microorganisms. 
B) inhibiting the growth of harmful microorganisms. 
C) providing oxygen for the growth of other microorganisms. 
D) removing wastes from the body. 
E) all of the above. 
A) providing nutrients for the growth of other beneficial microorganisms. 
B) inhibiting the growth of harmful microorganisms. 
C) providing oxygen for the growth of other microorganisms. 
D) removing wastes from the body. 
E) all of the above.

Question 13

Which of the following viruses is potentially associated with the development of cancer?

Accepted Answer

A) Human papilloma virus. 
B) Epstein-Barr virus. 
C) Human herpes virus 8. 
D) Hepatitis B virus. 
E) All of the above. 
A) Human papilloma virus. 
B) Epstein-Barr virus. 
C) Human herpes virus 8. 
D) Hepatitis B virus. 
E) All of the above.

Question 14

During the prodromal phase of a disease

Accepted Answer

A) the pathogen is present but there are no symptoms. 
B) the patient is recovering from the disease. 
C) the patient reports non-specific symptoms. 
D) the signs and symptoms enable a definite diagnosis. 
E) the patient is not infectious. 
A) the pathogen is present but there are no symptoms. 
B) the patient is recovering from the disease. 
C) the patient reports non-specific symptoms. 
D) the signs and symptoms enable a definite diagnosis. 
E) the patient is not infectious.

Question 15

Organisms that cause disease only when the body's defences are lowered are called

Accepted Answer

A) contaminants. 
B) commensals. 
C) transient. 
D) opportunists. 
E) colonisers. 
A) contaminants. 
B) commensals. 
C) transient. 
D) opportunists. 
E) colonisers.

Question 16

An example of mutualism is

Accepted Answer

A) Candida albicans infection in the mouth. 
B) Staphylococcus aureus colonising the nose. 
C) Lactobacilli living in the vagina. 
D) Escherichia coli living in the bladder. 
E) Staphylococcus epidermidis colonising a catheter. 
A) Candida albicans infection in the mouth. 
B) Staphylococcus aureus colonising the nose. 
C) Lactobacilli living in the vagina. 
D) Escherichia coli living in the bladder. 
E) Staphylococcus epidermidis colonising a catheter.

Question 17

An infection that doesn't cause any signs or symptoms in a person is called a

Accepted Answer

A) subclinical infection. 
B) superinfection. 
C) slow infection. 
D) non-infection. 
E) systemic infection. 
A) subclinical infection. 
B) superinfection. 
C) slow infection. 
D) non-infection. 
E) systemic infection.

Question 18

Which of the following statements is TRUE?

Accepted Answer

A) Symbiosis refers to different organisms living together. 
B) Symbiotic relationships are never damaging to either member. 
C) A parasite and its host are not in a symbiotic relationship. 
D) Symbiotic relationships always benefit both members. 
E) All of the above. 
A) Symbiosis refers to different organisms living together. 
B) Symbiotic relationships are never damaging to either member. 
C) A parasite and its host are not in a symbiotic relationship. 
D) Symbiotic relationships always benefit both members. 
E) All of the above.

Question 19

Which of the following is usually an endogenous infection?

Accepted Answer

A) Urinary tract infection. 
B) Tetanus. 
C) Rabies. 
D) Sexually transmitted infection. 
E) Influenza. 
A) Urinary tract infection. 
B) Tetanus. 
C) Rabies. 
D) Sexually transmitted infection. 
E) Influenza.

Question 20

Which of the following statements is TRUE?

Accepted Answer

A) Newborn babies do not have a microbiota because they are washed with antiseptics at birth. 
B) Babies born by caesarean versus a natural birth are more likely to acquire infection from the mother. 
C) A newborn baby does not have an intestinal microbiota as long as it is breastfed. 
D) The human foetus while it is growing in the uterus contains the same microbiota as the mother. 
E) None of the above. 
A) Newborn babies do not have a microbiota because they are washed with antiseptics at birth. 
B) Babies born by caesarean versus a natural birth are more likely to acquire infection from the mother. 
C) A newborn baby does not have an intestinal microbiota as long as it is breastfed. 
D) The human foetus while it is growing in the uterus contains the same microbiota as the mother. 
E) None of the above.

Exam 7: Hostmicrobe Interactions and Principles of Disease

A systemic infection is one which

The term 'normal microbiota' refers to microorganisms which

A parasite is an organism that

Which of the following factors increases a person's susceptibility to infection?

An infection that occurs when the body's defences are weakened is called

The capacity of a microorganism to cause disease is termed

Plaque consists of

The presence of bacteria in the bloodstream without any signs or symptoms is called

During which phase of an illness is a person possibly infectious?

The spread of an infection from the throat to the meninges of the brain is termed a

In a healthy person,which area of the body has a normal microbiota?

One of the ways in which the microbiota benefits the host is by

Which of the following viruses is potentially associated with the development of cancer?

During the prodromal phase of a disease

Organisms that cause disease only when the body's defences are lowered are called

An example of mutualism is

An infection that doesn't cause any signs or symptoms in a person is called a

Which of the following statements is TRUE?

Which of the following is usually an endogenous infection?

Which of the following statements is TRUE?

The Invisible World

Biological Reactions in Microbial Cells

Bacteria

Genes and Biotechnology

Viruses and Viral Diseases

Eucaryotic Microorganisms: Fungi, protozoa and Multicellular Organisms

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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