OBJECTIVE LIFE SCIENCE
SIGNALLING IMMUNOLOGY CANCER
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Although antibodies are not harmful by themselves, the granule contents released include histamine, heparin, proteases, leukotrienes, prostaglandins, and chemokines, which can cause allergic reactions.
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true
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false
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Either A or B
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None of the above
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Explanation:
Detailed explanation-1: -Type I hypersensitivity is also known as an immediate reaction and involves immunoglobulin E (IgE) mediated release of antibodies against the soluble antigen. This results in mast cell degranulation and release of histamine and other inflammatory mediators.
Detailed explanation-2: -During allergic reactions, basophils release two enzymes, histamine and heparin. Histamine enlarges your blood vessels to improve blood flow and heal the affected area. Histamine opens pathways for other cells in your immune system to quickly target and respond to the allergen.
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