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An inflammation reaction involves the A - VCE - SSCE Biology - Question 5 - 2010 - Paper 1
Question 5
An inflammation reaction involves the A. release of histamines. B. agglutination of bacteria. C. production of immunoglobulin. D. vasoconstriction of blood vessels.
Worked Solution & Example Answer:An inflammation reaction involves the A - VCE - SSCE Biology - Question 5 - 2010 - Paper 1
Step 1
release of histamines.
Answer
An inflammation reaction typically begins with the release of histamines from mast cells or basophils. Histamines are substances that play a crucial role in immune responses, particularly in the pathophysiology of allergic reactions. They cause blood vessels to dilate and become more permeable, leading to increased blood flow and the characteristic swelling and redness of inflammation.
Step 2
agglutination of bacteria.
Answer
While agglutination may occur as a secondary immune response, it is not a primary feature of inflammation. Agglutination involves the clustering of bacteria or particles, usually mediated by antibodies, but is less directly associated with the inflammatory process.
Step 3
Step 4
vasoconstriction of blood vessels.
Answer
Vasoconstriction refers to the narrowing of blood vessels, which is generally associated with a reduction in blood flow. This is contrary to the immediate effects of inflammation, where vasodilation occurs, leading to increased blood flow to the affected area.