Tag: innate and acquired immunity
Questions Related to innate and acquired immunity
Which antibody can pass the barrier of placenta?
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IgA
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IgE
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IgG
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IgM
How many types of immunity do we have?
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$1$
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$2$
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$3$
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$4$
Humans have two types of immunity i.e., innate and acquired immunity. Innate is non specific immunity and acquired is specific immunity.
Find the odd one out:
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Hallucination
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Hydrophobia
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Seizure and paralysis
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Lowered immunity
Rabies is a disease that shows its symptoms in two stages. During $2-10$ days symptoms like hallucination, hydrophobia, seizure and paralysis occurs. Lowered immunity is the symptom of AIDS.
To which type of barriers under innate immunity, do the saliva in the mouth and the tears from the eyes belong?
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Physiological barriers
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Physical barriers
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Cytokine barriers
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Cellular barriers
The immune system provides both the types of immune response innate and acquired immune responses. Innate immunity occurs naturally due to genetic factors or physiology. It is a native immune response that present by birth. It provides physical barrier such as skin, Physiological barriers such as pH of the stomach, bile juice, saliva and tears, cellular barriers such as leucocytes, macrophage cell and cytokine barrier.
Innate immunity is provided by
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Antibody
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Neutrophils
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B-cells
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T-cells
The innate immune is an older evolutionary defense strategy and it is dominant immune system response found in plants ,fungi,insects,and primitive multi-cellular organisms..The innate leukocytes includes:
- the phagocytes(macrophages ,neutrophils and dendritic cells),
- innate lymphoid cells,
- mast cells,
- eosinophils
- ,basophils and
- natural killer cell.
These cells identify and eliminate pathogens either by attacking larger pathogens through contact or by engulfing and then killing micro-organism.Hence ,innate immuniy is provided by neutrophils.
Immunomodulators
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Stimulates immune system
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Suppress immune system
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Some stimulate ,others inhibit immune system
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Never suppress immune system
Immunomodulation is modulation (regulatory adjustment) of the immune system. Homeostasis in the immune system, whereby the system self-regulates to adjust immune responses. Immunomodulators are a part of immunotherapy, in which immune responses are induced, amplified, attenuated, or prevented according to therapeutic goals.
Which of the following correctly exemplifies acquisition of active immunity by a person?
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A person who has recovered from an attack of mumps, develops natural active immunity
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When ready-made antibiotics are directly injected into a person's body to protect him against foreign agents, then he acquires artificial active immunity
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When a person is vaccinated for a disease then he acquires natural active immunity for that disease
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When antibody is transferred from mother to the fetus through placenta then the developing baby acquires artificial active immunity
Non-specific immunity is provided by all except ________________.
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Kupffer cells
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alveolar macrophases
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lymphocytes
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neutrophils
Which one of the following is mismatched
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Helper T-cells-help complement react
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Memory T-cells-long-living line of 1-cells
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Suppressor T-cells-shut down the immune response
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Cytotoxic T-cells-active in tissue rejection
A- Helper T cells are arguably the most important cells in adaptive immunity, as they are required for almost all adaptive immune responses. They not only help activate B cells to secrete antibodies and macrophages to destroy ingested microbes, but they also help activate cytotoxic T cells to kill infected target cells.
Incorrect statement about non-specific immunity
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It includes barriers of defence
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It developed by contract with pathogen
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It operates faster
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It is inherited
Non-specific immunity operates fast and it is inherited genetically and it is developed by contact with a pathogen but it does not act as a barrier of defence.