microbiology Flashcards
Lymphogranuloma venereum is cause by a
chlamydia
Which of the following is a mode of direct disease transmission?
droplet spray
Which of the following is most likely to enter the body through the genitourinary tract?
syphilis
The type of lesion most closely associated with tuberculosis is
a tubercle
The advantage of using heat for the disinfection of materials over other forms of disinfection, like the use of chemicals, is that heat:
penetrates throughout the materials
Normal flora bacteria will cause which of the following types of infection?
endogenous
Ophthalmia neonatorum is an infection caused by a species of bacteria which is a member of the genus
Neisseria
What body cell is known to perform the process of phagocytosis?
a leukocyte
A communicable disease that occurs in a community only as an occasional case is termed
sporadic
Monilia is used synonymously with
Candida
Which of the following would most likely transmit typhoid fever as a mechanical vector?
housefly
A communicable disease that attacks a large number of persons in a community at about the same time is termed
epidemic
What type of viral disease would cause lesions of the skin?
dermatropic
Puerperal sepsis is commonly referred to as
childbed fever
What organism causes the condition of lobar pneumonia?
Streptococcus pneumoniae
Which of the following organisms is an exotoxin producer?
Clostridium tetani
Select the organism that is classified as a member of the Fungi Kingdom.
yeast
A visible mass of bacterial growth resulting from the reproduction of a single cell is a
colony
Where are spores formed?
within the cell cytoplasm
The disease known as “Ebola” is caused by which of the following types of organisms?
virus
The portal of entry of Salmonella typhi is
mouth
The highest temperature at which growth for a species will take place is the
maximum temperature
Which of these transmit disease by biting the host?
biological vectors
Rickettsia grow only as
parasites
Which of these is primarily bacteriostatic in its action?
cold
An association of two organisms that is detrimental to one is
antibiosis
Which of the following is true of a carrier?
may have never had the disease that is being carried
may have had the disease and recovered
exhibits no symptoms of the disease
What is an infection of the blood with actual growth and multiplication of pathogens in the blood?
septicema
Bacteria are considered to be
prokaryotic
With what disease is rubella identified?
German measles
A bacterium which has a high degree of pathogenicity is said to be very
virulent
Pertussis is a disease that is commonly called
whooping cough
The structures that produce mobility for bacteria cells are the
flagella
The lowest temperature at which growth for a species will take place is the
minimum temperature
What control process is used to destroy something of no value?
incineration
A viral disease affecting only humans is
mumps
Which of the chemical agents is described as a coal-tar derivative?
phenol
The type of acquired immunity that results from exposure to viral antigen when the virions are modified in a laboratory to be unable to cause disease is:
artificially acquired active
What infection occurs in an individual who has no other active infection?
primary
What term is defined as the invasion of the body by living microorganisms with subsequent multiplication and disease production?
infection
In the terminal disinfection process, the embalmer should consider which of the following qualities of the disinfectant:
readily available
broad spectrum (kills a lot of different kinds of microorganisms)
low toxicity (not so harmful to other materials or tissues)
all of these are important considerations
The disinfection process is aimed at:
Destruction of pathogenic agents
Which of the following statements is true abut Creutzfeldt-Jakob disease?
It is always fatal
Which mechanical method of sanitation is likely to be used in the practice of mortuary hygiene?
scrubbing
The causative agent of typhus fever is a
rickettsia
Which of the following requires living cells for growth?
viruses
Which one of the following diseases is caused by a spiral-shaped organism?
Syphilis
Substances produced by body cells to combat foreign proteins introduced into the living body are called
antibodies
What disease is caused by Francisella tularensis?
rabbit fever
Which of these is least effective in sterilizing instruments?
free-flowing steam
Malaria is caused by a:
protozoa
Which of these is an example of pathogenic protozoa?
Entamoeba histolytica
What type of immunity is passed from the mother to the fetus?
natural passive immunity
Malaria and amoebiasis are caused by
protozoa
The organism responsible for the infection epidemic meningitis exit from the host by mean of
droplet spray
Which of the following organisms is the causative agent for a venereal disease?
Treponema pallidum
A bacterium which has had its virulence reduced is said to be
attenuated
All diseases caused by microorganisms are properly referred to as:
infections
Streptococcus pyogenes is responsible for the infectious disease
rheumatic fever
The type of immunity conferred after birth is called
acquired
Vaccines bring about a type of immunity referred to as
active
Which of the following is classified as viscerotropic?
hepatitis
Diplococci appear
in pairs
Which of the following is capable of producing an enterotoxin that will cause food poisoning?
Staphylococcus
Why are ultraviolet light rays lethal to bacteria?
they damage the DNA or RNA of the microbe
The entrance into a host by means of a deep puncture wound may cause
tetanus
The prefix “staphylo” refers to an organism’s tendency to
occur in grape-like clusters
q
The causative organism for Tetanus is from the Genus:
Clostridium
Parrot fever is
transmitted by air
Vibrio cholerae are bacteria responsible for the infection called
Asiatic cholera
Epidemic typhus bacteria are transmitted by:
lice
A mutally advantageous symbiotic relationship between two organisms is
mutualism
Which of the following is caused by a member of the genus Staphylococcus?
food poisoning
Which of the following is NOT an effective disinfectant?
soap
The study of all microscopic life forms is
microbiology
Which of the following is an example of a fomite?
coffee cup
Which of the following is caused by a Chlamydia?
Psittacosis
The word “streptococcus” describes
spherical cells arranged in chains
Serum hepatitis has been attributed to
exposure to blood
The cytoplasm of the typical eucaryotic cell is separated from the nucleus by the
nuclear membrane
Those eukaryotic, true-fungi that reproduce by budding are called
yeasts
Which structure functions to protect the organism and to enhance its virulence?
capsule
Those bacteria that grow best at a relatively low temperature are
psychrophilic
What is the classification for the disease poliomyelitis?
neurotropic
A communicable disease that has spread to more than one country may be described as
pandemic
A bacterium that prefers dead inorganic material, but can also obtain nourishment from living organic material is classified as:
facultative
Hemolysins and leucocidins are classified as
bacterial toxins
A poisonous substance produced by a microorganism is
a toxin
Which of these is a characteristic of rickettsial organisms?
they are all arthropod-borne
An agent which liberates gases or fumes for the purpose of destruction of insects and microorganisms is called
a fumigant
Lockjaw is the common name for the disease
tetanus
Spherical shaped bacteria that form grape-like clusters are called
staphylococci
Local skin abscesses are infections usually caused by the members of the genus
Staphylococcus
Which of the following does NOT play a part in the transmission of salmonellosis?
virions
Least likely to be a viral disease is
bubonic plague
A thin whip-like organelle of bacterial motility is the
flagellum
The study of the smallest of the microbes containing any DNA or RNA is called:
virology
The causative agent of a disease modified in such a manner that it will no longer cause the disease but will still promote the production of antibodies is a(n)
vaccine
Acne. boils. and pus formation on the skin is most commonly caused by
Staphylococcus aureus