The diagram shows the life cycle of the malaria parasite, Plasmodium sp - HSC - SSCE Biology - Question 17 - 2018 - Paper 1
Question 17
The diagram shows the life cycle of the malaria parasite, Plasmodium sp. Five stages in this life cycle are numbered on the diagram.
Cycle in Mosquito
Cycle in Hum... show full transcript
Worked Solution & Example Answer:The diagram shows the life cycle of the malaria parasite, Plasmodium sp - HSC - SSCE Biology - Question 17 - 2018 - Paper 1
Step 1
Taking anti-malarial drugs
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Answer
Anti-malarial drugs are most effective during the stage where the parasite is in the bloodstream, specifically the stage where it infects red blood cells. Therefore, the answer is 2.
Step 2
Spraying swamps with insecticides
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Answer
Spraying swamps targets the mosquito stage of the life cycle because it reduces the mosquito population before they can transmit the parasite. Thus, the answer is 1.
Step 3
Using mosquito nets over beds
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Answer
Using mosquito nets is also aimed at preventing mosquito bites, thereby reducing the chances of infecting humans. Hence, the answer is 1.
Step 4
Administering a malaria vaccine
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Answer
A malaria vaccine would ideally be effective in preventing malaria by targeting the parasite in the bloodstream, particularly in the red blood cell stage. Thus, the answer is 2.
