Boss Fight: Pathogens & Barriers
Topic 10.1 - Disease & Immunity
Paper 2
5 MCQs
Paper 4
5 Theory
Paper 6
5 Practical
Paper 2
Question 1: Define "Transmissible Disease".
Paper 2
Question 2: Which body defense mechanism destroys bacteria in food?
Paper 2
Question 3: Which is an example of INDIRECT transmission?
Paper 2
Question 4: Identify the PRIMARY function of MUCUS in the respiratory system.
Paper 2
Question 5: Which organism is a VECTOR for malaria?
Paper 42 marks
Question 6: Describe TWO ways pathogens can be transmitted indirectly.
Paper 43 marks
Question 7: Explain the function of mucus and cilia in the nose and trachea.
Paper 42 marks
Question 8: State TWO body fluids that can transmit HIV.
Paper 43 marks
Question 9: Explain how the skin acts as a barrier to pathogens.
Paper 42 marks
Question 10: Describe how stomach acid protects against pathogens.
Paper 62 marks
Question 11: In a hygiene lab, why are agar plates incubated at 25°C (not 37°C) in schools?
Paper 61 mark
Question 12: A student tests hand cleanliness by pressing fingers onto agar before and after washing. State the INDEPENDENT variable.
Paper 61 mark
Question 13: In the same experiment, state the DEPENDENT variable.
Paper 62 marks
Question 14: Give TWO safety precautions when handling agar plates with bacteria.
Paper 6
Question 15: A diagram shows a mosquito, housefly, and butterfly. Identify the VECTOR for disease transmission.
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