exam 3 exam
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exam 3 exam
The varicella-zoster virus establishes latency in the ___ and if reactivated causes the development of _____
sensory ganglia, pneumonia
When changes in virion structure occur as a result of major genetic changes, this is called
Persitant viral infections that last the lifetime of the host are referred to as ____ infections
Most viruses, once inside the human, will disseminate through the
In response to a specific infection, the innate resonse is active during
all phases of the infection
What type of immunity is produced by the body when a person receives a vaccine?
Artificially acquired active immunity
What type of immunity is produced by teh body when an infant receive breastmilk?
naturallyacquired passive immunity
What type of immunity is produced by the body when a person received antitoxin
artificially aquired passive immunity
One of the main differenced between protozoans andhelminthes is that protozoans are ____ whereas helminthes are_____.
The two classes of helminthes are:
Cestodes are associated with all of the following charactersitics:
Possession of a head called the scolex
Use of a retractable rostellum for attachment
Hyphae are associatd with which of the following?
Unicellular fungi are referred to as
Fungi that can grow in eithe r the yeast or mold form depnding on environmental conditions exhibit
specific molcules that the body recognizes as foreign
pyrogens stimulate which fo the following processes
Which of the following is a type of phagocytic cell?
Which cell leaves the bloodstream to become a macrophage?
Which cell increases in number during a helminth infection
All of the following contian lysozyme except:
The B-cell antigen receptor is called a(n)
T cells mature in the
Long-lived lymphocytes that respond more rapidly and effecitvely on antigen encounter at a later time are known as ____ cells
cytotoxic t cells
What is the first anibody made during an infection?
What is the most abundant antibody found in teh blood?
Babies who breast feed are afforded passive immune protection of their GI tracts by the presence of ____ in colostrums and breast milk.
HIV uses ____, protein molecules on the virus surface, to bind to the surface of T cells, dendritic cells and macrophages.
gp120 and gp41
Some people are resistant to HIV infection because of mutations in ____ on the surface of host cells
Which malignancy is commonly associated with AIDS?
De-germing is best described as..
mechanical process for removing microbes
a bacteriaostatic agent si one that
inhibits the rowth of the microbe
Of the following, the most efective method of nucleic acid disruption is
Microbial death has occured if
reproductive capability is lost even when microbe is placed in optimal conditions
The efficacy of penicillin is highest during the ____ phase of bacterial life cycle
t helper cell
The study of fungi is
mannan and glucan provide..
structural stability for fungal hyphae
fungi vary enormously in size from microscopic to macroscopic
this is true
there are many antibodies to treat fungal infections. true or false?
dentaures proteins and disrupts cell membranes
denature proteins, disrupt cell membranes
denatures proteins and disrupts cell membranes
denatures proteins and dirupts cell membranes
What are the four steps of phagocytosis?