Quiz
Immunity Test
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Perguntas do quiz (61)
1All of the following represent examples of nonspecific immunity except:
- Aspecies resistance
- Bphagocytosis
- Ccell-mediated immunity
- Dmechanical and chemical barriers
2The body's first line(s) of defense is (are) the:
- Askin
- Bmucous membrane
- Cinflammatory response
- DBoth A and B are correct
3inflammation mediators include:
- Ahistamine
- Bkinins
- Cprostaglandins
- Dall of the above
4the most numerous type of phagocyte is the:
- Aneurtrophil
- Bhistocyte
- Cmicoglia
- DKupffer cell
5the type of immune mechanism that provides a general defense by acting against anything recognized as "not self" is called:
- Anonspecific immunity
- Bspecific immunity
- Cautoimmune
- Dnon of the above
6All of the following are major types of interferon except _______ interferon.
- Acartilage
- Bleukocyte
- Cimmune
- Dfibrolast
7B cell mechanisms are classified as ___________ immunity.
- Anonspecific
- Bantibody-mediated
- Ccell-mediated
- DBoth A and B are correct
8Macromolecules that induce the immune system to make certain responses are called:
- Aantigens
- Bplasma proterins
- Cantibodies
- Dprostaglandins
9Memory Cells:
- Aimmediately secrete antibodies when they are formed
- Bare supporting cells and are not related to antibodyproduction
- Care special type of T cell
- Dbecome plasma cells when exposed to an antigen
10The constant region of the light chain in an antibody consists of ____ amino acids.
- A50
- B77
- C106
- D168
11An immunoglobulin, or antibody molecule, consists of _____ heavy and _____ light polypeptide chains.
- Atwo;two
- Bfour;two
- Ctwo;four
- Dfour;four
12The antibody normally constituting the highest percentage of antibodies in the blood is:
- AIgE
- BIgG
- CIgM
- DIgA
13Which of the following does not describe phagocytosis?
- Athe ingestion and destruction of microogranisms or other small particles
- BPart of the inflammatory response
- Ca major component of the body's third line of defense
- Da nonspecific defense
14The antibody produced after initial contact with an antigen is:
- AIgE
- BIgG
- CIgM
- DIgA
15The antibody commonly found in tears and saliva is:
- AIgE
- BIgD
- CIgM
- DIgA
16The function of which antibody is basically unknown?
- AIgE
- BIgD
- CIgM
- DIgA
17The antibody associated with allergic reactions is:
- AIgE
- BIgG
- CIgM
- DIgA
18The major class of antibody present in the mucous membranes of the body is:
- AIgG
- BIgE
- CIgA
- DIgD
19The predominant antibody of a secondary response is:
- AIgE
- BIgG
- CIgM
- DIgA
20The most abundant circulation antibody, the one that normally makes up abut 75% of all the antibodies in the blood, is:
- AIgG
- BIgA
- CIgE
- DIgM
21Complement can best be described as a(n):
- Aenzyme in blood
- Blmphokine
- Cantibody
- Dhormone
22The complement system can be activated by:
- Athe binding of complement protein 1 to the complement-binding site on the antibody molecule
- Bthe binding of complement protein 3 to bacteria or viruses in the presence of properdin
- Cnonspecific immunity mechanisms
- Dall of the above
23According to the clonal selection theory, antigens select lymphocyte clones by:
- Athe chemicals secreted by the lymphocytes
- Bthe proximity of the lymphocytes to the antigens
- Cthe shape of the receptors on the lymphocyte's plasma membrane
- Dproducing toxins
24Which of the following can activate complement?
- AT cells
- Binterferon
- Cproperdin
- Dlymphokine
25Which of the following is true of lymphoknies?
- Athey are produced by B cells
- Bthey inhibit macophage activity
- Clymphotoxins is an example of a lymphokine
- Dthey are produced by helper T cell
26Specific immunity is controlled by two classed of lymphocytes called:
- Aantigens and antibodies
- BT cells and B cells
- Cred blood cells and white blood cells
- Daggultinogens and agglutinins
27Which of the following can activate, or turn on, an inactive B cell?
- Abinding to its specific antibody
- Bbinding to its specific antigen
- Chelper T cell
- DAll B cells are activated when an infant is born
28The part of the antibody that combines with the antigen is the:
- Avariable region
- Bconstant region
- Ccarbohydrate chain
- Dcomplement-binding site
29the chemical messengers that T cells release into inflamed tissue are called:
- Apathogens
- Blymphokines
- Clymphotoxins
- Dsuppressor cells
30They type of immunity produced by vaccination would be ______ immunity.
- Aactive natural
- Bpassive natural
- Cactive artificial
- Dpassive artiticial
31When a child develops measles and acquires immunity to a subsequent infection, this type of immunity is called ____immunity.
- Aacquired
- Bnatural
- Cactive
- Dall of the above
32Interferon inhibits the spread of:
- Aviruses
- Bbacteria
- Ccancer
- Dyeast
33Examples of lymphocytes are:
- AB cells
- BT cells
- CBoth A and B
- Dnone of the above
34Macrophages sensitize:
- AT cells
- BB cells
- CT cells and B cells
- Dnone of the above
35Which type of cells is not involved in nonspecific immunity?
- Amonocytes
- Blymphocytes
- Cneutrophils
- Dmacrophages
36which of the following is not a chemical used as a chemical barrier to pathogens?
- Ahydrocholric acid
- Bsebum
- Ccomplement
- Dhydrolyzing enzymes
37Which of the following is not a characteristic of inflammation?
- AHeat
- BRedness
- Cswelling
- Dall of the above are characteristics of inflammation
38Which antibody has 10 antigen-binding sites?
- AIgM
- BIgA
- CIgD
- DIgG
39Which antibody has four antigen-binding sites?
- AIgM
- BIgA
- CIgD
- DIgG
40Which antibody has two antigen-binding sites?
- AIgM
- BIgA
- CIgG
- DBoth A and B
41Which of the following is not caused by complement protein activity?
- Avasodilation
- Bagglutination of antigens
- Ccytolysis
- Dall of the above are caused by complement protein activity
42The ability of our immune system to attack abnormal or foreign cells but spare our own normal cells is called:
- Ainnate immunity
- Bnonspecific immunity
- Cself-tolerance
- Dadaptive immunity
43Adaptive immunity is also called ____immunity.
- Ainnate
- Bspecific
- Cnonspecific
- Dspecies
44Which substance produced by the skin contains pathogen-inhibiting agents?
- Ahydrochloric acid
- Bmucus
- Cenzymes
- Dsebum
45Which substance can destroy pathogens by lowering the pH to a level at which they cannot function?
- Ahydrocholoric acid
- Bmucus
- Csnzymes
- Dsebrum
46Which substance can destroy pathogens by chemically hydrolyzing them?
- Ahydrochloric acid
- Bmucus
- Cenzymes
- Dsebum
47Which of the following is not part of the inflammation response?
- Athe release of chemicals that attract white blood cells
- Bthe formation of antoboides
- Cthe increase of blood flow to the inflamed area
- Dall of the above are part of inflammation response
48Which of the following is not apart of the inflammation response?
- Athe release of histamine
- Bthe increase in vascular permeability
- Cthe stimulation of fibroblast growth
- Dall of the above are part of the inflammation response
49When an antigen attaches to a naive B cell, it becomes a(n) ______ cell.
- Amemory
- Bplasma
- Ceffector B
- DAll of the above are correct
50In te first stage of their development, B cells are known by all the following terms except _____ B cells.
- Aeffector
- Bnaive
- Cinactive
- Dvirgin
51If a blood test indicated that a person had a high level of IgM antibodies in the blood, it could be concluded that:
- Athe persons body's responding to a re-exposure to an antigen.
- Bthe person's body is responding to the initial exposure to an antigen
- Cthe person has an increasing likeihood that he will become allergic to an antigen
- Dno conclusion could be made
52Which is the best explanation of how a white blood cell ingests and destroys a microorganism?
- Athe white blood cell engulfs the mircoorganism and then lysosomal enzymes destroy it.
- Bthey white blood cell allows the mircoorganism to be absorbed by osmosis and then lysosomal enzymes destroy it
- Cthe white blood cell engulfs the microorganisms and chemotaxis destroys it
- Dthe white blood cell allows the mircoorganism to be adsorbed by osmosis and then diapedesis destroys it
53Which is the best explanation of how complement a group of about 20 inactive enzymes in the plasma and on cell surfaces is activated and produces cytolysis?
- Acomplement is "turned on" by the presence of bacteria
- Bcomplement is activated by antibodies to "drill a hole" into foreign cells, thus causing cytolysis
- Ccomplement causes vasoconstriction and inhibits phagocytosis
- DBoth A and B are correct
54Systemic lupus erythematosus is an example of a(n)
- AB cell Mediated condition
- BT cell mediated condition
- Cautoimmune condition that is caused by self-antigens being attacked
- Disoimmune condition that is caused by self-antigens being attacked
55When a patient starts to have rejection problems with a transplanted organ, the problems are usually caused by:
- Aa B cell-mediated condition
- BHuman Leukocyte antigens (HALs)
- Cself-antigens
- Dsevere combined immune deficiency (SCID)
56The Human immunodeficiency virus (HIV) damages the immune system by ____ cells.
- Ainvading memory
- Binvading T
- Coverproducation of B
- Doverproducation of plasma
57Why is it difficult to predict the total number of acquired immune deficiency syndrome (AIDS) causes that will result from known HIV infected patients?
- Aafter a person is infected, the signs of AIDS infection might not be apparent for years
- Bthe current treatment of highly active antiretroviral therapy (HAART) alters the infected cells
- Cinfected cells begin to change only after treatment is started
- Dso many people have received the vacccine that there is no way to count who actually has the infection.
58Which is the bet explanation of how immune suppression can be helpful in preventing transplant rejection?
- Athe immune system sometimes reacts against foreign antigens in the grafted tissue, causing what is often called a rejection syndrome. Immune suppression drugs reduce the immune systems ability to attack the foreign antigens in the donated tissue.
- Bbecause rejection is caused by an inappropriate and excessive responses to self-antigens, giving immune suppression drugs would reduce this effect.
- Crejection involves antigen antibody reactions, mainly IgE triggered by repeated exposure to an allergen, so immune suppression drugs would reduce the reaction to the allergen which in this cause is the transplanted organ
- Ddelayed allergic response occurs with transplanted organs, so immune suppression drugs would reduce the allergic response and decrease rejection.
59Two year old jenny is undergoing a treatment for leukemia and was exposed recently to chickenpox. Her oncologist decided to give her a dose of interferon. What effect was the pyhsician hoping for with this approach>
- Ait would stop the virus from traveling over the sensory nerve of a single dermatome.
- Bit would cause an increase in white blood cells
- Cit would inhibit the chickenpox infection from developing.
- Dit would assist in the development of lymphocytes in the spleen
60Chris has very bad allergies, especially in the springtime, and is seeking help to overcome her allergic reaction. Why would an antihistamine help Chris be come comfortable?
- Ait would counter the effects of the self antigen reaction
- Bit would replace the allergen with a different chemical and this reduce her symptoms
- Cit would reduce the antigen antibody reaction caused by the allergen
- Dit would reduce the amount of human leukocyte antigen in her system
61Steven had mumps as a child. Why did he not experience symptoms at the age of 41 after he was again exposed to the mumps virus?
- Ahe had an injection with weakened virus shortly before he was exposed
- Bhe had natural passive immunity to ward off the virus
- Che had artificial passive immunity that he received from his brother after he had the mumps
- Dhe developed active immunity as the result of having mumps as a child.
Informações
- Descrição
- immunity test Quiz sobre Immunity Test, criado por Anjetta Johnson em 23-08-2017.
- Autor
- Anjetta Johnson
- Idioma
- English
- Visualizações
- 2
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