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9 Immunity
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Published
10/07/2024
What is the primary function of eosinophils in the immune system? a) Engulfing bacteria b) Mediating allergic responses and figh…
Published
10/07/2024
Which of the following cells is conasidered a part of both the innate and adaptive immune responses? a) Neutrophils b) Macrophag…
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10/07/2024
Which part of the antibody binds to an antigen? a) Constant region b) Fab region c) Fc region d) Light cha…
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10/07/2024
Which cytokine is primarily responsible for stimulating the production of IgE? a) IL-2 b) IL-4 c) IL-12 d)…
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10/07/2024
Which cells produce antibodies in response to an antigen? a) T-helper cells b) Plasma cells c) Neutrophils  …
Published
10/07/2024
Which immune cell type is involved in directly killing virus-infected cells without prior sensitization? a) NK cells b) B cells&…
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10/07/2024
Which of the following best describes the process of opsonization? a) Direct killing of bacteria by macrophages b) Marking of pa…
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10/07/2024
Which of the following describes the role of the thymus in immunity? a) Production of antibodies b) Site of T-cell maturation&nb…
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10/07/2024
Which immunoglobulin is most abundant in secretions such as saliva and mucosal surfaces? a) IgG b) IgA c) IgM &n…
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10/07/2024
Which type of immune response is primarily activated during a bacterial infection? a) Humoral immunity b) Cell-mediated immunity…
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10/07/2024
Which cells recognize and respond to antigens presented by MHC class II molecules? a) Cytotoxic T cells b) Helper T cells &…
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10/07/2024
What type of hypersensitivity reaction involves immune complexes depositing in tissues, leading to inflammation? a) Type I b) Ty…
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10/07/2024
What happens during clonal expansion in the immune response? a) B cells are destroyed by NK cells b) T cells differentiate into …
Published
10/07/2024
Which of the following is a characteristic feature of a secondary immune response? a) Slower and less intense than the primary response&nbs…
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10/07/2024
Which type of cells are responsible for producing immunological memory? a) Macrophages b) Memory B and T cells c) Neu…
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10/07/2024
What is the primary function of the immune system? a) Production of hormones b) Defense against infections and cancer  …
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10/07/2024
Which cells are primarily involved in phagocytosis during the innate immune response? a) B cells and T cells b) Neutrophils and …
Published
10/07/2024
What type of immunity is provided by vaccines? a) Innate immunity b) Adaptive immunity c) Passive immunity  …
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10/07/2024
Which of the following is a characteristic of innate immunity? a) Highly specific response b) Memory formation c) Imm…
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10/07/2024
How do B cells respond to the presence of an antigen? a) By releasing histamine b) By differentiating into plasma cells and prod…
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10/07/2024
Which immunoglobulin is capable of crossing the placenta to protect the fetus? a) IgM b) IgA c) IgG d) IgE
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10/07/2024
What is the main role of cytotoxic T lymphocytes? a) Phagocytosis of bacteria b) Killing of infected or cancerous cells &nb…
Published
10/07/2024
Which immune response is most effective against intracellular pathogens such as viruses? a) Humoral immunity b) Cell-mediated im…
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10/07/2024
Which of the following molecules is part of the complement system? a) Interferon b) C3 c) IgA d) TNF-alpha
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10/07/2024
What is the role of memory cells in the adaptive immune response? a) Initiating immediate immune reactions upon subsequent exposure to the …
Published
10/07/2024
Which cytokine is primarily responsible for activating macrophages? a) IL-4 b) IL-2 c) IFN-gamma d) IL-10
Published
10/07/2024
Which immunoglobulin is most associated with allergic reactions and parasitic infections? a) IgG b) IgA c) IgM &…
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10/07/2024
How does passive immunity differ from active immunity? a) Passive immunity requires the host to produce antibodies b) Passive im…
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10/07/2024
What are dendritic cells primarily responsible for? a) Directly killing pathogens b) Acting as antigen-presenting cells &nb…
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10/07/2024
Which cell type is involved in the activation of both B cells and cytotoxic T cells? a) Regulatory T cells b) Helper T cells (CD…
Published
10/07/2024
Which component of the immune system is primarily involved in preventing viral infections by recognizing and killing virus-infected cells? …
Published
10/07/2024
What is the function of the major histocompatibility complex (MHC) in immunity? a) To transport immune cells to the site of infection …
Published
10/07/2024
Which type of hypersensitivity reaction is mediated by IgE antibodies? a) Type I (Immediate) b) Type II (Cytotoxic) c…
Published
10/07/2024
Which immune cells are known as the first responders to infection? a) B cells b) Neutrophils c) NK cells d…
Published
10/07/2024
How do NK cells recognize and destroy target cells? a) Through antigen-specific receptors b) By recognizing the absence of MHC c…
Published
10/07/2024
In an experimental model, an animal is injected with a bacterial pathogen, and its neutrophils are observed to migrate to the site of infection. What …
Published
10/07/2024
A patient receives an organ transplant but later suffers from organ rejection. What is the most likely immunological mechanism involved? a)…
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10/07/2024
In an individual with a genetic mutation preventing the formation of memory B cells, what is the most likely outcome of subsequent infections by the s…
Published
10/07/2024
If a patient lacks the ability to produce interferons, which of the following processes is most likely impaired? a) Activation of macrophag…
Published
10/07/2024
A researcher removes the thymus from a developing animal. What effect will this have on the animal’s immune system later in life? a) Reduce…
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