Immunology Test 0% 0 votes, 0 avg 314 You will have 60 minutes to complete all the questions. After the timer reaches 60 minutes, the exam will end and be saved automatically. Good luck! *Fingers crossed* The timer has been reached. The exam has now been terminated and saved. Immunology Test 1 / 60 The pathway of the complement that can lyse bacteria is: a. Alternative pathway b. Lectin pathway c. Lytic pathway d. Classical pathway 2 / 60 The basic monomeric Immunoglobulin unit is: a. One of five major classes b. Four polypeptide chains c. Four polypeptide chains and One of five major classes d. Synthesized by a T-cell 3 / 60 The type of an immunoglobulin is determined by: a. The heavy chain b. The carbohydrate c. The light chain d. The variable region 4 / 60 The component of immune system that can cause inflammation is : a. Macrophage b. Complement c. T lymphocytes d. Immunoglobulin 5 / 60 Which type of antibody is MOST effective in activating complement?: a. IgG3 b. IgM c. IgG2 d. IgG1 6 / 60 The tests below show that patient has an chronic infection of HBV?: a. HBsAg positive b. HBcAb positive c. All answers d. HBsAb negative 7 / 60 To stabilise the C3 convertase of the alternative pathway, the factors below are useful : a. C3-BP b. C1-INH c. Factor F d. Factor P 8 / 60 The function of cytokines are : a. Production of complement b. Bind to MHC class I c. Regulation the immune cells d. Specifically recognize antigens 9 / 60 The vaccine prepared from living and inactivated microbe is considered as?: a. Atenuated vaccin b. Denatured c. Antibody d. A toxoid 10 / 60 Which of the following DOES NOT play a role in antigen presentation: a. MHC class I molecules b. MHC class II molecules c. Complement d. MHC class III molecules 11 / 60 The following hepatitis can be prevented by vaccination : a. Hepatitis C and E b. Hepatitis D and C c. Hepatitis A and B d. Hepatitis B and C 12 / 60 Intracellular pathogen is presented to the Tc by: a. TH b. MHC II c. Lymphocytes d. MHC I 13 / 60 In the complement system, the classic pathway initiates by the complement : a. C1qrs b. C5 c. C4 d. MBL 14 / 60 Which nonspecific defense cells specialize in attacking cancer cells and virus-infected cells?: a. NK cells b. TH cells c. B cells d. Macrophages 15 / 60 These blood cells have memory after pathogens infection, EXCEPT? TH cells?: a. Macrophages b. Tc cells c. B cells 16 / 60 Which of the following is a β structural chain in class I MHC?: a. α1 b. β1 c. β2 –microglobin d. α2 17 / 60 Which of the immune cells/molecules are effective to neutralise and opsonse extracellularpathogens?: a. B cells b. Antibodies c. Complement d. T cells 18 / 60 These cytokines secreted by T helper cell?: a. TNF-α b. Chimokine c. IL-2 d. Interferon 19 / 60 All of the following statements are true for the diagnosis of HBV infection, EXCEPT?: a. Bilirubin b. Liver enzyme c. Serological HBV d. Glucose test 20 / 60 The following immunoglobulin(s) become monomer when they attaché antigen : a. IgM b. IgE c. IgG d. IgA 21 / 60 Which of the following antibody fragments consists of a dimer of the heavy-chain constantregion but lacks the CH1 domains?: a. Fc b. Fab c. F(ab) d. F(ab)’2 22 / 60 Lymphocytes that develop immunocompetence in the thymus are?: a. LGL's b. NK cells c. B cells d. T cells 23 / 60 The immunoglobulin class which is the least abundant in the normal adult is : a. IgA b. IgE c. IgG d. IgD 24 / 60 When hepatitis vaccin start to use since year?: a. 1985 b. 1960 c. 2002 d. 199000% 25 / 60 The following statements are true for Antibodies, EXCEPT: a. They have hypervariable region b. Composed of variable and constant regions c. Non immunogen d. Made of heavy and light chains 26 / 60 Clinical abnormalities of the Immune system can result from the activities below: a. Abnormal lymphocyte proliferation b. Plasma cells secrete antibody c. T cell secrete cytokine d. Neutrophils kill bacteria 27 / 60 The function of major histocompatibility complex is: a. Bind antibody for cytokine secretion b. Degrade T4 and T8 polypeptides c. Bind complement for cell lysis d. Bind epitope for presentation to T-cells 28 / 60 Clinical abnormalities of the Immune system can result from the following statement, EXCEPT: a. T cells proliferation b. Abnormal lymphocyte proliferation c. HIV Infection d. Deficiency diseases 29 / 60 Papain cleaves what region of immunoglobulin?: a. Light chain b. Hinge region c. Heavy chain and Light chain d. Heavy chain 30 / 60 The screening test for HBV infection is?: a. HBsAg b. HBsAb c. HBcAb d. HBcAg 31 / 60 Immunoglobulins do which of the following?: a. Complement fixation b. All of the above c. Opsonisation d. Antigen binding 32 / 60 Complements are chemically: a. Lipoproteins b. Glycoproteins c. Glycogens d. Proteins 33 / 60 Biological effect of Complement C3a is: a. Opsonisation b. Phagocytosis c. Edema d. Anaphylaxis 34 / 60 Which immunoglobulin is the principal one that is unkown function: a. IgD b. IgA c. IgM d. IgG 35 / 60 Molecule binding to their receptors at high affinity : a. All answer b. Antigen c. Antibody d. Cytokines 36 / 60 T- independent antigen presented to the following lymphocyte?: a. Tc cells b. B cells c. TH1 cell d. TH cells 37 / 60 The cancer of T cells are called?: a. Extranodal T cell lymphoma b. Hodgkin lymphoma c. Non-Hodgkin lymphoma d. All answers 38 / 60 The function of Natural Killer cell is: a. Response to antibody b. Response to bacteria infection c. Kill pathogen d. Damaged the target cell membrane 39 / 60 Which cell is directly secreted immunoglobulin: a. Macrophage b. Plasma cell c. T lymphocyte d. B lymphocyte 40 / 60 The answer below is/are artificial active immunization?: a. Exposure to the infections b. Attenuated organisms c. Killed organisms and Attenuated organisms d. Killed organisms 41 / 60 In a chronic infection of Hepatitis B, the typical serologic course are : a. HBsAg b. HBsAb c. HBcAb d. HBsAg and HBcAb 42 / 60 Class II MHC are : a. Used to kill by cytotoxic T-cells b. Not able to carry an antigen fragment c. Used to participate in cytotoxic function d. Recognized by the CD4 protein 43 / 60 The variable regions in the heavy chains participate in: a. Cellular receptor b. Cytokine receptor c. Complement receptor d. Antigen receptor 44 / 60 T cells secreted cytokine to activate cells in blood vessel, This phenomen is called: a. Endocrine b. Autocine c. Paracrine d. All answers 45 / 60 The Natural Killer Cells work in the immune system : a. Innate immunity b. Adaptive immunity c. Kill extracellular antigen d. Adaptive immunity and Innate immunity 46 / 60 The following statements are true for Antibodies a. Are made from alpha and beta chains b. Have variable region c. Contain cytoplasmic region d. Are carbohydrates 47 / 60 Which of the followings are TRUE regarding an Immune response: a. The T3 complex is signal to the cell's interior to recognize antigen b. The T8 support MHC II in cytotoxic reactions c. The T4 support MHC class I in helper reactions d. The T4 secrete antibody 48 / 60 Superantigens presented to T cells by : a. Monocyte b. B cell c. APC d. Mast cell 49 / 60 The incubation period of HBV in the body is?: a. 30-90 days b. 30-60 days c. 60-100 days d. 45-180 days 50 / 60 The tests below show that patient is susceptible to an HBV infection?: a. HBcAb negative b. All answers c. HBsAb negative d. HBsAg negative 51 / 60 The function of immune system is to response: a. Can be facilitated by antibodies b. All answers c. Mediated the humoral and cellular immune system d. Facilitated by T-cells 52 / 60 The following statements are true for Antibodies: a. Contain heavy and light chains b. Are made from alpha and beta chains c. Are carbohydrates d. Contain no carbohydrate 53 / 60 Which of the following components of the adaptive immune system secretes immunoglobulin(Ig)?: a. CD4+ activated T cell b. Activated B cell (plasma cell) c. Resting lymphocytes (B cell, T cell) d. CD8+ cytotoxic T cell (CTL) 54 / 60 The following statement are for Target cell lysis and destruction, EXCEPT: a. Complement binding to IgE which have bound to epitopes on the cell surface b. Cytotoxic T-cells recognizing specific epitopes on the target cell surface c. Perforin released from antigen-specific cytotoxic T-cells d. Complement binding to IgG and IgM which have bound to epitopes on the target cell 55 / 60 All of these tests show that patient has been infected with HBV, EXCEPT?: a. HBcAg positive b. HBsAg negative c. HBsAb positive d. HBcAb positive 56 / 60 Which of the following binds to an Fc receptor on mast cells and basophils?: a. IgM b. IgG c. IgA d. IgE: 57 / 60 The following answer is the function of IgG, EXCEPT : a. Activate complement b. Primary response to antigen c. Cross placenta d. Opsonize bacteries 58 / 60 The immunoglobulin(s) that have long hinge region are/is: a. IgG4 b. IgG3 c. IgG1 d. IgG2 59 / 60 The family of hepatitis C virus is?: a. Hepanavirus b. Rotavirus c. Flavivirus d. Ribovirus 60 / 60 Which of the following immunoglobulin is first synthesized in an immune system to responsean pathogen?: a. IgM b. IgG c. IgA d. IgE Your score isThe average score is 74% Facebook 0% Restart quiz Any comments? Send feedback