Human Defence Systems (AQA GCSE Biology Combined Science): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What is the main function of the non-specific defence system?
What is the main function of the non-specific defence system?
To prevent pathogens entering the body
How does the skin protect against pathogens?
How does the skin protect against pathogens?
It produces antimicrobial secretions
What is the role of skin flora?
What is the role of skin flora?
Compete with bad microorganisms
What prevents particles from entering your lungs through the nose?
What prevents particles from entering your lungs through the nose?
Hairs and mucus
What is the function of cilia in the trachea and bronchi?
What is the function of cilia in the trachea and bronchi?
Beat to waft mucus upwards
How does the stomach protect against pathogens?
How does the stomach protect against pathogens?
It produces hydrochloric acid
What is phagocytosis?
What is phagocytosis?
Engulfing and consuming pathogens
What is an antigen?
What is an antigen?
A structure on pathogen surface
What happens when antibodies bind to pathogens?
What happens when antibodies bind to pathogens?
Pathogens clump together
What happens if you're infected again with the same pathogen?
What happens if you're infected again with the same pathogen?
Antibodies produced at faster rate