Learning Path
Question & Answer1
Understand Question2
Review Options3
Learn Explanation4
Explore TopicChoose the Best Answer
A
respiratory pathogens
B
food particles
C
sunlight
D
toxic substances
Understanding the Answer
Let's break down why this is correct
Answer
Skin barriers keep germs from entering the body. Mucous membranes do the same job, but in the lining of the nose, throat, gut and other cavities. They produce mucus that traps bacteria, viruses and dust particles. This prevents the germs from reaching deeper tissues. For instance, the mucus in the nose catches a virus before it can reach the lungs.
Detailed Explanation
Mucous membranes line the nose and throat. Other options are incorrect because Some think food particles need the same kind of barrier; Sunlight is not a bug that needs a mucous barrier.
Key Concepts
Innate immune response
Physical barriers to infection
Chemical barriers
Topic
Barriers to Pathogens
Difficulty
medium level question
Cognitive Level
understand
Practice Similar Questions
Test your understanding with related questions
1
Question 1Which of the following statements best describes the role of skin in pathogen defense?
easyBiological-sciences
Practice
2
Question 2Order the following barriers to pathogens in terms of their functioning in the body's defense system: A. Skin oils create an acidic environment B. Mucus traps pathogens C. Skin serves as a physical barrier D. Sebum kills pathogens
easyBiological-sciences
Practice
3
Question 3Which barrier primarily provides a chemical defense against pathogens on the skin?
easyBiological-sciences
Practice
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