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In humans, an example of a chemical barrier that prevents the entry of pathogens into the internal environment would be: - histamine - VCE - SSCE Biology - Question 16 - 2021 - Paper 1
Question 16
In humans, an example of a chemical barrier that prevents the entry of pathogens into the internal environment would be: - histamine. - interferons. - lysozymes. - c... show full transcript
Worked Solution & Example Answer:In humans, an example of a chemical barrier that prevents the entry of pathogens into the internal environment would be: - histamine - VCE - SSCE Biology - Question 16 - 2021 - Paper 1
Step 1
chemical barrier example
Answer
An example of a chemical barrier that prevents the entry of pathogens into the internal environment is lysozymes.
Lysozymes are enzymes that break down the cell walls of bacteria, leading to their destruction. They are found in various body fluids, including saliva, tears, and mucus, making them a vital part of the immune response.
While histamine and interferons play roles in the immune response, they do not function primarily as chemical barriers. Complement proteins assist in pathogen destruction but are not directly involved in preventing entry.