161⟩ What is tapasin?
It is a protein that is associated with class I MHC molecules.
Immunology
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“Immunology Interview Questions and Answers will guide us now that Immunology is a broad branch of biomedical science that covers the study of all aspects of the immune system in all organisms. Immunology deals with, among other things, the physiological functioning of the immune system in states of both health and disease. Learn conceptual Immunology or get preparation of Immunology jobs interview by our this Immunology Interview Questions and Answers Guide.”
200 Immunology Questions And Answers
162⟩ What is a vaccine?
It is a preparation of antigenic material used to induce immunity against pathogens.
163⟩ What are tumor antigens?
Tumor antigens are cell surface proteins, which are present on the surface of tumor cells that induce cell-mediated immune response.
164⟩ Name the parasite, which causes malaria?
The parasites that cause malaria are Plasmodium vivax, Plasmodium falcifarum.
165⟩ Name the parasite, which causes leishmaniasis?
It is Leishmania species.
166⟩ Name the parasite, which causes chagas disease?
It is Trypanosoma cruzi.
167⟩ Name the parasite, which causes sleeping sickness or trypanosomiasis?
Trypanosoma rhodense, Trypanosoma gambiense
168⟩ What is the mechanism of host defense in malaria?
Blocks invasion and opsonises for phagocytosis
169⟩ What is the mechanism of host defense in leishmaniasis?
Restrict the spread of disease.
170⟩ What is the mechanism of host defense in chagas disease?
Lysis in presence of compliment
171⟩ What is the mechanism of host defense in trypanosomiasis?
Opsonises for phagocytosis
172⟩ What is the response type and activity shown by effector molecule IgA?
Blocks binding of virus to host cells, thus preventing infection
173⟩ What is the response type and activity shown by effectors molecules IgG, IgM and IgA?
Blocks fusion of viral envelope to the cell plasma membrane
174⟩ What is the response type and activity shown by effector molecule IgG, IgM?
Enhances phagocytosis by opsonization
175⟩ What is the response type and activity shown by effectors molecule IgM?
Agglutination
176⟩ What is the response type and activity shown by effectors molecule compliment activated by IgG or IgM?
Mediated opsonization
177⟩ What is the response type and activity shown by effectors molecule IFN ? secreted by TH or TC cell?
Cell mediated immune response.
178⟩ What is the response type and activity shown by effectors molecule cytotoxic T cells?
Cell mediated immune response.
Activity: Kills virus infected self-cells.
179⟩ What is the response type and activity shown by effector molecule natural killer cell macrophages?
Cell mediated immune response.
Activity: Kills virus infected cells by ADCC.
180⟩ What is the host defense mechanism shown if an attachment is made to host cell?
Blockage of attachment by secretory IgA antibodies
