Edexcel IGCSEBiologyGeneral Applications7 Marks
Malaria is a disease caused by a parasite and transmitted by mosquitoes.
- (a)Name the vector for malaria.[1]
- (b)Suggest two ways in which the spread of malaria can be controlled in a community.[2]
- (c)Explain how the human body's immune system responds to an infection, such as malaria, to prevent further harm.[4]
Mark scheme
Marking points from the official mark scheme. The mark or mark type is shown in brackets.
- 13(a) B1: mosquito / Anopheles (mosquito) (1)
- 13(b) B1: use of mosquito nets (1)
- B1: use of insecticides / repellents / drainage of stagnant water / anti-malarial drugs (1)
- 13(c) M1: phagocytes engulf / ingest pathogens (1)
- M1: lymphocytes produce antibodies (1)
- M1: antibodies bind to antigens / pathogens / toxins (1)
- A1: (leading to) destruction of pathogen / neutralisation of toxins / easier for phagocytes to engulf / memory cells produced (1)
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