Immunology TESTS COMPILATION BUNDLE

Grafts exchanged between identical twins or animals that are identical to one another are known as... A) Alloreactive B) Allogeneic C) Syngeneic D)Xenogeneic correct answer: C) Syngeneic Grafts from one person to another are known as... A) Alloreactive B) Allogeneic C) Syngeneic D)Xe...

Which integrin mediates firm adhesion? a. ICAM-1 b. sialyl-Lewis^x c. LFA-1 d. VCAM-1 correct answer: C. LFA-1 Chemotaxis refers to what? a. the hemodynamic changes that take place within an inflamed area b. expression of CAMS on the surfaces of monocytes/macrophages c. the directional mi...

CLIP correct answer: Remnant of Ii (invariant chain) MIIC Compartments correct answer: Peptide loading compartments for MHC class II Viruses that target MHC antigen processing pathways correct answer: Long-life viruses eg herpes, cytomegalovirus (pulls MHC from ER membrane into cytosol to d...

1) Which of the following is characteristic of antibodies? A) carbohydrate structure B) composed of heavy and light polypeptide chains C) three binding sites per antibody monomer D) incapable of being transferred from one person to another correct answer: B) composed of heavy and light poly...

Immune recognition of molecules belonging to self is important to A. activate natural killer cells of the innate immune system . B. determine the safety of interacting with the molecule. C. induce somatic generation of a B- or T-lymphocyte receptor for the molecule. D. stimulate binding by patte...

Dentritic cells? Secrete prions Recognise, process and present antigenic information Are the only cells which secrete cytokines correct answer: Recognise, process and present antigenic information Adaptive immune system includes? Skin cells Mast cells T cells correct ans...

If a person shows production of interferons in his body, the chances are that he has got an infection: a. tanatus b. malaria c. typhoid d. measles correct answer: d. measles The blood group, with antibody A and antibody B is: a. O b. A c. B d. AB correct answer: a. O Antibodies in ou...

What is the role of the immune system in host defense? correct answer: To provide defense against antigens and other infectious agents via innate immunity or adaptive immunity. What is the difference between central and peripheral tolerance? correct answer: Central tolerance is the mechanism by...

Which of the following can be attributed to Pasteur? a. Discovery of opsonins b. Observation of phagocytosis c. First attenuated vaccines d. Theory of humoral immunity correct answer: c Which WBC is capable of further differentiation in tissues? a. Neutrophil b. Eosinophil c. Basophil d. M...

Which of the following is not attributed to cytokines? correct answer: Stimulates the classical complement pathway Which two organs are considered the primary lymphoid organs in which immunocompetent cells originate and mature? correct answer: Thymus and bone marrow What type(s) of B cells a...

Which of the following receptor types are used by the immune system to sense bacterial lipopolysaccharide? correct answer: Toll-like receptors Which of the following cytokines are not produced by dendritic cells upon pathogen receptor ligation? correct answer: Interleukin-2 Neutrophils can k...

All immunoglobulins have the same basic structure which consists of correct answer: 2 heavy chains, 4 light chains Which of the following is not a charcteristic of B cells? A. Differentiate in to plasma cells B. Contain surface immunoglobulins C. Become memory cells D. Form rosettes with uns...

Natural Killer (NK) cells: a. are lymphocytes derived from the lymphoid line belonging to the innate immunity b. are lymphocytes derived from the myeloid line belonging to the innate immunity c. are lymphocytes derived from the lymphoid line belonging to the adaptive immunity d. are very activ...

The most sensitive method for the detection of antibodies to ds-DNA is a. Immunofluorescence b. Radioimmunoassay c. Immunoprecipitation d. Immunoelectrophoresis correct answer: a. Immunofluorescence 1.Which of the following tests is used to diagnose contact dermatitis? a. Prick tests b. S...