Fighting disease (Edexcel 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 two ways does the skin defend against pathogens?
What two ways does the skin defend against pathogens?
Physical barrier & antimicrobial secretions
How does skin flora help protect the body?
How does skin flora help protect the body?
Competes with bad microorganisms for space and nutrients
What structures in the nose prevent particles entering the lungs?
What structures in the nose prevent particles entering the lungs?
Hairs and mucus
What is the role of cilia in the trachea and bronchi?
What is the role of cilia in the trachea and bronchi?
Beat to waft mucus upwards to be swallowed
What does the stomach produce to kill pathogens?
What does the stomach produce to kill pathogens?
Hydrochloric acid
What is phagocytosis?
What is phagocytosis?
Engulfing and consuming pathogens
What structure on a pathogen do antibodies bind to?
What structure on a pathogen do antibodies bind to?
Antigen
Why don't you feel ill when infected again by the same pathogen?
Why don't you feel ill when infected again by the same pathogen?
Antibodies produced faster; you're immune
Who discovered lysozyme and when?
Who discovered lysozyme and when?
Alexander Fleming in 1921
Where is lysozyme secreted in the body?
Where is lysozyme secreted in the body?
Tears, saliva & mucus