Microbiology Exam Iv - Summer 2011

229 Questions  I  By Stephens
Please take the quiz to rate it.

Microbiology Quizzes & Trivia

  
Changes are done, please start the quiz.


Question Excerpt

Removing question excerpt is a premium feature

Upgrade and get a lot more done!
1.  Which of the following cell types is specifically responsible for humoral immunity?
A.
B.
C.
D.
E.
2.  Which of the following is true about the role normal flora play in maintaining host health?
A.
B.
C.
D.
E.
3.  Which of the following is not an event of phagocytosis?
A.
B.
C.
D.
E.
4.  Allografts
A.
B.
C.
D.
E.
5.  Human B lymphocytes mature in an intestinal region called the bursa.
A.
B.
6.  Interferons function to make cells
A.
B.
C.
D.
7.  Each of the following are physical barriers to pathogens except
A.
B.
C.
D.
E.
8.  A vaccination is a good example of
A.
B.
C.
D.
9.  The infectious dose of most pathogens is about equal.
A.
B.
10.  The "voices" of a cell are
A.
B.
C.
D.
11.  The immunoglobulin/s found on the surface of B cells is/are
A.
B.
C.
D.
E.
12.  Eczema is an autoimmune disorder.
A.
B.
13.  Which of the following is a fomite?
A.
B.
C.
D.
E.
14.  Regarding a mismatch of either the Rh antigen or the AB antigen both
A.
B.
C.
D.
15.  The number of organisms necessary to insure infection is termed the
A.
B.
C.
D.
16.  The complement pathway that is activated by mannan binding lectins is the 
A.
B.
C.
D.
17.  Pathogenic microbes that cause disease in healthy people are called
A.
B.
C.
D.
E.
18.  Nonspecific resistance is
A.
B.
C.
D.
E.
19.  Which of the following compounds are mast cells specialized to secrete?
A.
B.
C.
D.
E.
20.  Which of the following exhibits the highest phagocytic activity?
A.
B.
C.
D.
E.
21.  The potential for hemolytic disease of the newborn occurs when
A.
B.
C.
D.
E.
22.  Which type of hypersensitivity is IgE?
A.
B.
C.
D.
23.  An epidemic that spreads worldwide is called a(n)
A.
B.
C.
D.
24.  The leukocyte that contains histamine is the
A.
B.
C.
D.
25.  Which of the following cell types is specifically responsible for cell-mediated immunity?
A.
B.
C.
D.
E.
26.  An example of genetic variation used in pathogen survival may be
A.
B.
C.
D.
E.
27.  The science that deals with when diseases occur and how they are transmitted is called
A.
B.
C.
D.
E.
28.  The beauty of specific immunity is the production of __________ that provides long-lasting protection.
A.
B.
C.
D.
E.
29.  Antibodies are __________.
A.
B.
C.
D.
E.
30.  Which of the following is a phagocytic cell found in the human body?
A.
B.
C.
D.
31.  Which of the following are antigen-presenting cells?
A.
B.
C.
D.
32.  Microbes may evade host defensive responses by
A.
B.
C.
D.
E.
33.  Endotoxins are
A.
B.
C.
D.
E.
34.  If a disease affects only a human and not an animal, then it would be difficult to fulfill Koch's postulate number ___.
A.
B.
C.
D.
35.  Which lymphocytes lack specificity for antigen and are cells that attack cancer cells and virus-infected cells?
A.
B.
C.
D.
E.
36.  If the thymus fails to develop,
A.
B.
C.
D.
E.
37.  How long after initiation of a primary response do signifiant amounts of antibody appear in the blood?
A.
B.
C.
D.
38.  Diapedesis is the
A.
B.
C.
D.
E.
39.  Macrophages and dendritic cells are
A.
B.
C.
D.
40.  An infection acquired during hospitalization is reffered to as
A.
B.
C.
D.
41.  A __________ is an infection indigenous to animals that can, on occasion, be transmitted to humans
A.
B.
C.
D.
E.
42.  A symptom is a(n)
A.
B.
C.
D.
E.
43.  Fomites are involved in
A.
B.
C.
D.
44.  Under normal circumstances, the microbiota of the skin is kept in check by
A.
B.
C.
D.
45.  Which of the following diseases is NOT thought to be an autoimmune disease?
A.
B.
C.
D.
E.
46.  Which of the following statements about antibodies is NOT true?
A.
B.
C.
D.
E.
47.  Fever
A.
B.
C.
D.
E.
48.  Which of the following members of the normal flora inhibits the growth of bacteria by production of fatty acids from lipids?
A.
B.
C.
D.
E.
49.  Inanimate objects capable of transferring infectious disease agents are
A.
B.
C.
D.
50.  Bacteria may survive phagocytosis by
A.
B.
C.
D.
E.
51.  Which class of antibody accounts for the bulk of the circulating antibody?
A.
B.
C.
D.
52.  When you cut yourself, the damaged cells immediately release which of the following chemical alarm signals?
A.
B.
C.
D.
E.
53.  Antibodies
A.
B.
C.
D.
E.
54.  The major significance of Koch's work was that
A.
B.
C.
D.
E.
55.  A group of interacting serum proteins that provide a nonspecific defense mechanism is
A.
B.
C.
D.
56.  Which of the following would be considered a sign of a disease?
A.
B.
C.
D.
57.  A relationship in which one partner benefits and the other is harmed is termed
A.
B.
C.
D.
58.  Only Gram-positive bacteria produce exotoxins.
A.
B.
59.  In Gram-negative bacteria, many of the genes required for pathogenicity are
A.
B.
C.
D.
E.
60.  Which is/are true about viruses?
A.
B.
C.
D.
E.
61.  Which of the following antibodies is a pentamer?
A.
B.
C.
D.
62.  Which of the following members of the normal flora inhibits the growth of Corynebacterium diphtheriae by producing hydrogen peroxide?
A.
B.
C.
D.
63.  What is a primary immune response?
A.
B.
C.
D.
E.
64.  Which of the following may inhibit the activity of normal flora and allow pathogens to become established?
A.
B.
C.
D.
65.  Opportunists or opportunistic pathogens
A.
B.
C.
D.
66.  A relationship in which one partner benefits and the other is unaffected is termed
A.
B.
C.
D.
67.  Which of the following cytokines is most antiviral in its action?
A.
B.
C.
D.
68.  The most numerous WBC's that have multilobed nuclei and are very phatocytic are
A.
B.
C.
D.
E.
69.  Attributes of an organism that promote pathogenicity are called
A.
B.
C.
D.
70.  The transfer of antibodies from breast milk to an infant is an example of __________ immunity.
A.
B.
C.
D.
E.
71.  All blood cells originate from the
A.
B.
C.
D.
72.  Cytopathic effects are changes in host cells due to
A.
B.
C.
D.
E.
73.  Which of the following statements about exotoxins is generally NOT true?
A.
B.
C.
D.
E.
74.  Which of the following triggers our nonspecific defense system?
A.
B.
C.
D.
E.
75.  Delayed type hypersensitivity primarily involves
A.
B.
C.
D.
76.  MHC molecules are found on each of the following cells except
A.
B.
C.
D.
E.
77.  Pyrogens are
A.
B.
C.
D.
78.  Each of the following are inoculation of normal biota to a newborn except
A.
B.
C.
D.
E.
79.  Which of the following is a phagocytic cell found in the human body?
A.
B.
C.
D.
80.  A person who has anti A and anti B serum antibodies will have blood type
A.
B.
C.
D.
E.
81.  Following digestion of a microorganism by phagocytes, the debris is excreted by
A.
B.
C.
D.
82.  Which is not a component of innate immunity?
A.
B.
C.
D.
83.  A person who is Rh- will have anti-Rh antibodies in their serum from early infancy.
A.
B.
84.  A nosocomial infection is
A.
B.
C.
D.
E.
85.  The secondary response to an antigen is faster and bigger than the primary response.
A.
B.
86.  The four classic signs and symptoms of inflammation include all the following except
A.
B.
C.
D.
E.
87.  After secreting antibodies during an immune response, plasma cells then differentiate into memory cells.
A.
B.
88.  In which organism were phagocytes first reported?
A.
B.
C.
D.
89.  Which of the following is NOT an activity of antibodies?
A.
B.
C.
D.
E.
90.  All of the following are associated with complement fixation EXCEPT
A.
B.
C.
D.
E.
91.  Which is mismatched?
A.
B.
C.
D.
E.
92.  Which is true about superantigens?
A.
B.
C.
D.
E.
93.  The complex resulting from complement activity that leads to cell lysis is the
A.
B.
C.
D.
94.  All of the following are types of exotoxins EXCEPT
A.
B.
C.
D.
E.
95.  The major categories of hypersensitivities that typically involve a B-cell immunoglobulin response is/are
A.
B.
C.
D.
E.
96.  The two main functions of the lymphatic system are
A.
B.
C.
D.
E.
97.  Which of the following is not a method of adhesion?
A.
B.
C.
D.
E.
98.  A researcher detects interferon in a laboratory rat and concludes that __________.
A.
B.
C.
D.
E.
99.  Diseases that cause long-term or permanent damage leave
A.
B.
C.
D.
E.
100.  Which of the following substances does a cytotoxic T cell secrete to destroy a target cell?
A.
B.
C.
D.
E.
101.  Density-dependent expression of virulence factors is called
A.
B.
C.
D.
102.  When an infectious disease cannot spread in a population because it lacks a significant number of susceptible hosts, the phenomenon is referred to as
A.
B.
C.
D.
103.  Which of the following does S. pneumoniae use to survive in the host?
A.
B.
C.
D.
104.  The interaction of all organisms within a biological community is called a(n)
A.
B.
C.
D.
105.  Which of the following is/are true about endotoxins?
A.
B.
C.
D.
E.
106.  Which of the following is NOT a chemical factor to protect the skin and mucous membranes from infection?
A.
B.
C.
D.
E.
107.  T cells and B cells are manufactured in the
A.
B.
C.
D.
108.  Which of the following does NOT contribute to a pathogen's invasiveness?
A.
B.
C.
D.
E.
109.  All the following are events of early inflammation except
A.
B.
C.
D.
E.
110.  The leukocyte responsible for adaptive immunity is the
A.
B.
C.
D.
111.  Which of the following is not a granulocyte?
A.
B.
C.
D.
112.  The production of interferon will protect the host cell from a viral infection.
A.
B.
113.  Transient microbiota differ from normal microbiota because transient microbiota
A.
B.
C.
D.
E.
114.  A commensal bacterium
A.
B.
C.
D.
E.
115.  A properly functioning immune system is responsible for
A.
B.
C.
D.
E.
116.  Which type of infection can be caused by septicemia?
A.
B.
C.
D.
E.
117.  Anaphylactic shock is an example of an __________.
A.
B.
C.
D.
E.
118.  All of the following are involved in Type II hypersensitivity except
A.
B.
C.
D.
E.
119.  __________ carriers are shedding and transmitting pathogen while they are recovering from an infectious disease.
A.
B.
C.
D.
E.
120.  Growth of a parasitic organism in or on the host is referred to as
A.
B.
C.
D.
121.  A needlestick is an example of which portal of entry?
A.
B.
C.
D.
E.
122.  All of the following are communicable diseases except
A.
B.
C.
D.
E.
123.  The leukocyte described as having a small amount of cytpolasm surrounding a round nucleus is the
A.
B.
C.
D.
124.  Which of the following is the endotoxin?
A.
B.
C.
D.
E.
125.  All of the following are methods of penetrating and/or avoiding the host EXCEPT
A.
B.
C.
D.
E.
126.  The body region where a ciliary escalator helps to sweep microbes trapped in mucus away from that body site is the
A.
B.
C.
D.
E.
127.  Which of the following is a major function of natural killer (NK) cells?
A.
B.
C.
D.
E.
128.  Transmission of an infectious disease by touching, handshaking, or kissing is considered
A.
B.
C.
D.
129.  Which of the following is considered an indirect mode of transmission?
A.
B.
C.
D.
130.  Organisms that are found together and interact on a more or less permanent basis are in a relationship termed
A.
B.
C.
D.
131.  A systemic, sometimes fatal reaction with airway obstruction and circulatory collapse is
A.
B.
C.
D.
E.
132.  Which of the following kinds of protein circulates in the blood and coats the surfaces of microbes to make them more susceptible to engulfment by macrophages?
A.
B.
C.
D.
E.
133.  Which of the following is one of the body's first lines of defense against infection?
A.
B.
C.
D.
E.
134.  The idea that communicable diseases were caused by the passage of living things from one person to another was first put forth by
A.
B.
C.
D.
135.  The leukocyte responsible for adaptive immunity is the
A.
B.
C.
D.
136.  Allergic reactions mainly involve
A.
B.
C.
D.
137.  When an infected person is in the incubation period, that person cannot transmit the pathogen to others.
A.
B.
138.  Antibodies that have arisen in the blood plasma without any obvious or deliberate stimulus are called
A.
B.
C.
D.
139.  Which of the following is involved in specific resistance (immunity)?
A.
B.
C.
D.
E.
140.  A disease is an infection that impairs the normal state of health.
A.
B.
141.  Which of the following is NOT a characteristic of inflammation?
A.
B.
C.
D.
E.
142.  The only class of antibody that can cross the placenta is
A.
B.
C.
D.
143.  The most frequently used portal of entry for pathogens is the
A.
B.
C.
D.
E.
144.  The microorganisms that are regularly found in or on the body, yet do no apparent  harm are called
A.
B.
C.
D.
145.  Which event is the process of releasing chemical mediators?
A.
B.
C.
D.
E.
146.  A person with O type blood
A.
B.
C.
D.
E.
147.  Inflammation responses are orchestrated by the immune system and are part of the body's third line of defense.
A.
B.
148.  A diet high in meat leads to a population of normal flora with an increased number of
A.
B.
C.
D.
E.
149.  What kinds of cells wander the interstitial fluid eating whatever bacteria and virus-infected cells they encounter and recognize?
A.
B.
C.
D.
E.
150.  The immunoglobulin that is important in hypersensitivity reactions is
A.
B.
C.
D.
151.  The chemical nature of exotoxins is that of a
A.
B.
C.
D.
152.  The affect of "good" microbes against invading microbes is called
A.
B.
C.
D.
E.
153.  The response of the immune system the second time an invader is encountered is called
A.
B.
C.
D.
154.  Which of the following are referred to as mononuclear phagocytes?
A.
B.
C.
D.
155.  Which is not a component of innate immunity?
A.
B.
C.
D.
156.  Diseases that can be transmitted from one person to another are termed
A.
B.
C.
D.
E.
157.  The transfer of antibodies in colostrum is a good example of
A.
B.
C.
D.
158.  A member of the normal flora that becomes an opportunist if it invades the urinary bladder is
A.
B.
C.
D.
159.  Tears protect the eyes by
A.
B.
C.
D.
E.
160.  Which is true about botox?
A.
B.
C.
D.
E.
161.  All of the following occur during inflammation.  What is the first step?
A.
B.
C.
D.
E.
162.  Bacteria have siderophores to capture iron; humans counter this by
A.
B.
C.
D.
E.
163.  Diseases constantly present in a population are
A.
B.
C.
D.
164.  C5a peptidase
A.
B.
C.
D.
E.
165.  The complement pathway that requires antibodies to be activated is the
A.
B.
C.
D.
166.  The basic function of T cells is to identify and destroy invaders in our __________.
A.
B.
C.
D.
E.
167.  Autoantibodies cause tissue injury in all the following diseases except
A.
B.
C.
D.
E.
168.  The first step in the establishment of infection is that the organism must
A.
B.
C.
D.
169.  Which process involves antibodies coating microorganisms in order to facilitate phagocytosis?
A.
B.
C.
D.
E.
170.  The initial, brief period of early, general symptoms such as fatigue and muscle aches is the
A.
B.
C.
D.
E.
171.  Typically, adhesins
A.
B.
C.
D.
E.
172.  Avirulent organisms are
A.
B.
C.
D.
173.  The hypersensitivity treatment that stimulates an increase of IgG and T suppressor cells, and a decrease in IgE is known as
A.
B.
C.
D.
E.
174.  Symptoms of disease differ from signs of disease in that symptoms
A.
B.
C.
D.
E.
175.  Which white blood cells comprise 3-7% of circulating WBC's, are phagocytic and can migrate out into body tissues to differentiate into macrophages?
A.
B.
C.
D.
E.
176.  Which is the first antibody class made during the primary response to an antigen?
A.
B.
C.
D.
177.  Normal flora
A.
B.
C.
D.
E.
178.  Skin and mucous membranes
A.
B.
C.
D.
E.
179.  A substance that can elicit an immune response is called a(n)
A.
B.
C.
D.
E.
180.  Each of the following can result in acquired immune deficiencies except
A.
B.