B2 Revision Questions For Chapter Flashcards
What is a pathogen?
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What is meant by the incubation period of a pathogen?
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Give an example of a disease that is spread through the air.
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Describe how the skin acts as a defence against pathogens.
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What are platelets?
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Give an example of a chemical defence against pathogens found in humans.
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How do white blood cells recognise specific pathogens?
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Explain why isolating infected individuals can help to prevent the spread of disease.
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Give one method for preventing the transition of HIV.
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Give one benefit and one cost of using biological control to prevent the spread of a disease in a crop.
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Give one potential risk of using variations as a way of protecting people from disease.
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Describe one way in which plant pathologists might identify a plant disease in the field.
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Explain how a plant disease may be identified using isolation and reinfection.
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There are ways in which you can make sure an experiment testing the effect of antibiotics does not become contaminated. Give three ways.
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How can you use monoclonal antibodies to detect a particular pathogen?
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How can monoclonal antibodies be used to trigger an immune response against cancer cells?
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What is meant by a risk factor for a non-communicable disease?
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Apart from lifestyle factors, give an example of a risk factor that might be associated with a non-communicable disease.
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Give one non-communicable disease which may be associated with smoking.
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What is meant by a positive correlation?
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Briefly describe how you could investigate the effect of exercise on pulse rate.
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What do antiviral drugs do?
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Give an example of a surgical procedure which can help to treat cardiovascular disease.
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How can genome sequencing help in the discovery of new drugs?
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