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
disease
fung... show full transcript
Worked Solution & Example Answer:1 (a) Pathogens cause disease - Edexcel - GCSE Biology Combined Science - Question 1 - 2018 - Paper 1
Step 1
Pathogen: fungus
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Answer
The disease caused by fungi is: Chalara ash dieback.
Step 2
Pathogen: virus
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The diseases caused by viruses include: AIDS, malaria, and tuberculosis.
Step 3
Explain why the data suggests that Patient Z has a bacterial infection.
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Patient Z has the highest count of white blood cells at 12,500 per µl, which is significantly above the normal range for healthy individuals. An increased white blood cell count often indicates an immune response to infections, particularly bacterial infections, suggesting that Patient Z may be suffering from one.
Step 4
State two safety precautions that need to be taken when handling blood samples.
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Wear gloves and goggles to protect against potential exposure to infectious agents.
Store samples safely in sealed containers to prevent spills and contamination.
