question
Which of the following type of bacteria are spore-forming rods that are nonmotile and noncapsulate?
answer
Clostridium perfringens
question
Bacteriostatic means
answer
inhibiting bacterial growth.
question
A chain of infection begins with which of the following?
answer
Reservoir host
question
A substance that inhibits the growth of bacteria is called
answer
bacteriostatic.
question
A group of bacteria considered to be the smallest freeliving organisms is known as
answer
Mycoplasma
question
A one-sided relationship in which one member benefits and the other is unaffected is called
answer
commensalism.
question
Which of the following microorganisms causes syphilis?
answer
Treponema pallidum
question
The destruction of organisms before they enter the body is known as which of the following?
answer
Disinfection
question
Which of the following pathogens may cause gas gangrene?
answer
Clostridium perfringens
question
Carriers of pathogenic organisms are called
answer
vectors.
question
Which of the following terms best describes microbes that grow and live in the absence of oxygen?
answer
Anaerobe
question
Which of the following groups of microorganisms are small intracellular parasites that are transmitted by ticks or lice?
answer
Rickettsiae
question
In the chain of infection, bacteria are classified as which of the following?
answer
Infectious agents
question
A microbe that lives only in the absence of oxygen is called a(n)
answer
Obligate anaerobe
question
The early detection and treatment of a patient with Shigellosis prevents the spread of infectious disease by interrupting the chain of transmission at which of the following levels?
answer
Reservoir host
-The chain of infection begins with the infectious agent. To prevent the spread of any infectious disease, the chain must be interrupted at any level
-The chain of infection begins with the infectious agent. To prevent the spread of any infectious disease, the chain must be interrupted at any level
question
Lyme disease is an infection caused by which of the following pathogens?
answer
Bacteria
question
Yeast infections may be caused by which of the following organisms?
answer
Candida albicans
question
Which of the following morphologic structures is characteristic of bacilli?
answer
Rod
question
Which of the following best defines the set of elements that includes an infectious agent, reservoir, portal of exit, mode of transmission, and susceptible host?
answer
Chain of infection
question
Which of the following can be seen only with an electron microscope?
answer
Viruses
question
Which of the following microorganisms is the most common cause of urinary tract infections?
answer
Escherichia coli
question
A one-sided relationship between a host and a microorganism is called
answer
Parasitism
question
The most common causative organism of meningitis in adults is
answer
Neisseria meningitides
question
Which of the following is a stain used to color bacteria?
answer
Gram's
question
Which of the following microorganisms appear as chains when stained and viewed through a microscope?
answer
Streptococci
question
Which of the following terms is the plural of bacillus?
answer
bacilli
question
Rocky Mountain spotted fever is caused by
answer
Rickettsia rickettsii.
question
In the chain of infection, a person with a compromised immune system would be which of the following links?
answer
Susceptible host
question
Which of the following types of bacteria is arranged in clusters?
answer
Staphylococci
question
The degree of pathogenicity or relative power of an organism to produce a disease is called
answer
Virulence
question
Which of the following microbes lives only in the absence of oxygen?
answer
Obligate anaerobe
question
Which of the following elements is needed for aerobes to cause infection?
answer
Oxygen
question
Which of the following is the most appropriate type of specimen for detecting the presence of Giardia lamblia?
answer
Stool
question
Which of the following is the causative agent of candidiasis?
answer
Yeast
question
A mucous membrane represents which of the following in the chain of infection transmission?
answer
Means of exit
-Mucous membranes line cavities or canals of the body that are open to the outside, such as the linings of the mouth, respiratory passages, and the GI tract.
-Mucous membranes line cavities or canals of the body that are open to the outside, such as the linings of the mouth, respiratory passages, and the GI tract.
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