1 (a) Pathogens cause disease - Edexcel - GCSE Biology Combined Science - Question 1 - 2018 - Paper 1
Question 1
1 (a) Pathogens cause disease.
Draw one straight line from each type of pathogen to the disease that is caused by that pathogen.
type of pathogen
fungus di... show full transcript
Worked Solution & Example Answer:1 (a) Pathogens cause disease - Edexcel - GCSE Biology Combined Science - Question 1 - 2018 - Paper 1
Step 1
Pathogens and Diseases
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Answer
Connect 'fungus' to 'Chalara ash dieback'.
Connect 'virus' to 'AIDS' and 'malaria' (There are not more lines than required, therefore, both can be connected).
Connect 'bacteria' to 'tuberculosis' and 'cholera'.
Step 2
Antibiotics
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Answer
Antibiotics kill bacteria.
Step 3
Patient Z's Blood Cells
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The data suggests that Patient Z has a bacterial infection because their white blood cell count is significantly higher than that of Patients X and Y. A higher white blood cell count, particularly neutrophils, often indicates the presence of an infection, commonly bacterial in nature.
Step 4
Safety Precautions for Handling Blood Samples
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Wear gloves and goggles to prevent contact with blood.
