Human Defence Systems (OCR GCSE Biology A (Gateway Science Suite)): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 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 the body from pathogens?
How does the skin protect the body from pathogens?
Acts as a physical barrier
What is the role of skin flora?
What is the role of skin flora?
Compete with bad microorganisms
How does the nose prevent pathogens from entering the lungs?
How does the nose prevent pathogens from entering the lungs?
Has hairs and mucus to trap particles
What do cilia do in the trachea and bronchi?
What do cilia do in the trachea and bronchi?
Beat to waft mucus upwards
What does the stomach produce to kill pathogens?
What does the stomach produce to kill pathogens?
Hydrochloric acid
What is the main role of the specific immune system?
What is the main role of the specific immune system?
Destroy pathogens that enter the body
Which cells are a large part of the specific immune system?
Which cells are a large part of the specific immune system?
White blood cells
What is phagocytosis?
What is phagocytosis?
Engulfing and consuming pathogens
What is an antigen?
What is an antigen?
A structure on a pathogen's surface
What happens when you are infected again with the same pathogen?
What happens when you are infected again with the same pathogen?
Antibodies produced at a faster rate
How do antitoxins protect the body?
How do antitoxins protect the body?
Neutralise toxins by binding to them