Digital signal processing objective type questions
Based on the novel Fair’s Fair by Narinder Dhami, write about an interesting character.Full description
MCQ Immunology
BASIC IMMUNOLOGY I. DEFINITIONS • Acquired (specific / adaptive) Immunity: A type of host defences that is stimulated by microbes that invade host tissues. In other words, acquired immunity…Full description
multiple choice questionsFull description
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enhancement enhancement of phagocytos phagocytosis is by coating co ating of particles with serum is called?
opsonization
Jenner's work with cowpox, which provided immunity against smallpox, demonstrates which phenomenon? Attenuation of vaccines
Which of the following can be attributed to pateur? a. discovery of opsonins b. research on haptens c. first attenuation of vaccines d. discovery of ABO blood types c. first attenuation of vaccines
Which of the following peripheral blood cells plays a key role in killing of parasites? Eosinophils
Which of the following plays an important role as an external defense mechanism? a. Phagocytosis b. c-reaction protein c. Lysozyme d. Complement c. Lysozyme
The process of inflammation is characterized by all of the following except?
a. b. c. d.
Increased blood supply to the area Migration of white blood cells Decreased capillary permeability appearance of acute-phase reactants
c. Decreased capillary permeability
Skin, lactic acid secretions, stomach acidity and the motion of cilia represent which type of immunity? a. Natural b. Acquired c. Adaptive d. Auto a. Natural
The structure formed by the fusion of engulfed material and enzymatic granules within the phagocytic cell is called? a. Phagosome b. Lysosome c. Vacuole d. Phagolysosome d. Phagolysosome
Which of the following white blood cells is capable of further differentiation in the tissues? a. Neutrophiles b. Eosinophil c. basophil d. Monocyte
d. Monocyte
The presence of normal flora acts as a defense mechanism by which of the following means? competing with pathogens for neutrients
Measurement of CRP levels can be used for all of the following except? a. Monitoring drug therapy with antiinflammatory agents b. tracking the normal progress of surgery c. diagnosis of a specific bacterial infection d. determining actibve phases of rheumatoid arthritis c. diagnosis of a specific bacterial infection
Which of the following are characteristics of acutephase reactants? a. Rapid increase following infection b. enhancement of phagocytosis c. Nonspecific indicators of inflammation d. all of the above d. all of the above
A latex agglutination test for CRP is run on a 12-year old girl who has been ill for the past 5 days with an undiagnosed disease. the results obtained are as
follows.: weakly reactive with undiluted serum and negative for both the positive and negative controls. what should the technologist do next? a. repeat the entire test b. report the result as indeterminat c. repot the results as positive c. obtain a new sample a. repeat the entire test
Which is the most significant agent formed in the phagolysosome for the killing of microorganisms a. Proteolytic enzymes b. Hydroxyl radicals c. hydrogen peroxide d. Superoxides c. hydrogen peroxide
The action of CRP can be distinguished from that of an antibody in which of the following ways? a. CRP acts before the antibody appears b. Only the antibody triggers the complement cascade c. Binding of the antibody is calcium dependent d. Only CRP acts as an opsonin a. CRP acts before the antibody appears
Which of the following is a primary lymphoid organ? Thymus. Primary lymphoid organs are the locations in which T and B cells become immunocompetent. This includes bone marrow and the thymus.
which of the following is true of NK cells? They recognize a lack of MHC proteins
Where are all undifferentiated lymphocytes made? a. bone marrow b. thymus c. spleen d. Lymph nodes a. bone marrow
Which of these are found on a mature B cells? a. IgG and IgD b. IgM and IgD c. Alpha and Beta chains d. CD3 b. IgM and IgD
Which of the following can be attributed to antigen stimulated T cells? a. humoral response b. Plasma cells c. cytokines d. antibody c. cytokines
Which is a distinguishing feature of a pre-B cells?
a. b. c. d.
u chains in the cytoplasm complete IgM on the surface presence of CD21 antigen Presence of CD25 antigen
a. u chains in the cytoplasm
Which of the following antigens are found on the T cell subset known as helper/inducers? a. CD3 b. CD4 c. CD8 d. CD11 b. CD4
Where does the major protion of antibody production occur? a. Peripheral blood b. bone marrow c. thymus d. lymph nodes d. lymph nodes
Which of the following would represent a doublenegative thymocyte? A. CD2-CD3+CD4-CD8+, B. CD2+CD3-CD4-CD8-, C. CD2-CD3+CD4+CD8-, D. CD2+CD3+CD4+CD8B. CD2+CD3-CD4-CD8-
All of the following are characteristic of a good immunogen except? a. internal complexity b. large molecular weight c. the presence of numerous epitopes d. found on host cells d. found on host cells
which of the following best describes a hapten? a. Not able to react with antibody b. Antigenic only when coupled to carrier c. Has multiple determinant sites d. A large chemically complex molecule b. Antigenic only when coupled to carrier
which would be the best immunogen? a. protein with a molecular weight of 200,000 b. nylon c. polysaccharide with a molecular weight of 250,000 d. protein with a molecular weight of 175,000 a. protein with a molecular weight of 200,000
All of the following describe an epitope except: a. same as an antigenic determinant site. b. area of an immunogen recognized by T cells. c. consists of sequential amino acids only d. key portion of the immunogen. c. consists of sequential amino acids only
Adjuvents act by which of the following methods? a. complex to antigen to increase its size. b. prevent rapid escape from tissues. c. increase processing of antigen d. all of the above d. all of the above
heterophile antigen is one that... a. is a self-antigen. b. exists in unrelated plants or animals. c. has been used previously to stimulate antibody response. d. is from the same species but is different from the host b. exists in unrelated plants or animals.
which of the following is true of MHC (HLA) classII antigens? a. they are found on all nucleated cells b. they are found on B cells and macrophages c. they all originate at one locus d they are coded for on chromosome 9 b. they are found on B cells and macrophages
MHC molecules are associated with which of the following? a. graft rejection b. autoimmune disease
c. determining to which antigens an individual responds d. all of the above d. all of the above
An individual is recovering from a bacterial infection and test positive for antibodies to a protein normally found in the cytoplasm of the bacterium. what would be true in this situation? Class II molecule have presented bacterial to CD4+ T cells.
About this deck Author: John J. Textbook: Clinical Laboratory Hematology (2nd Edition) (/notes/b/clinical-laboratoryhematology-2nd-edition/22144/0) Created: 2014-01-13 Updated: 2014-01-14 Size: 33 Flashcards Keywords: Flash C ard Flashcards D igital Flashcards Note Sharing Notes Textbook Wiki College Dorm Clas s Class room Exam Hom ework Test Quiz University College Education Learn Student Teachers Tutors Share, Study Blue Studyblue Studyblu Views: 2
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