A swimmer cut his foot on a sharp piece of coral - VCE - SSCE Biology - Question 12 - 2007 - Paper 1
Question 12
A swimmer cut his foot on a sharp piece of coral. Microscopic fragments of the living coral remained in the wound and the swimmer suffered itching, redness and pain ... show full transcript
Worked Solution & Example Answer:A swimmer cut his foot on a sharp piece of coral - VCE - SSCE Biology - Question 12 - 2007 - Paper 1
Step 1
A. reaction of antibodies with the living coral fragments.
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Answer
This statement is incorrect. Antibody reactions are specific immune responses, not nonspecific responses. Nonspecific immune responses primarily involve physical barriers and innate immune responses.
Step 2
B. decreased blood vessel permeability in the foot.
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Answer
This statement is also incorrect. Decreased blood vessel permeability would not aid in the nonspecific immune response. Instead, increased permeability typically allows immune cells to enter the affected area.
Step 3
C. removal of foreign material by neutrophils.
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Answer
This is the correct answer. Neutrophils are key players in the nonspecific immune response. They are among the first immune cells to arrive at the site of infection or injury and are responsible for phagocytosing (removing) foreign materials.
Step 4
D. a decrease in body temperature.
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Answer
This statement is incorrect. The body's temperature typically increases during an immune response, a condition known as fever, which helps to combat infections.
