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Plasmodium & Human Symbiosis . By: Rachel Schwab. Evasive Parasite. Plasmodium hide in the human liver and in blood cells. They hide from the immune system. A new Face. Plasmodium changes the “face” (surface proteins that they show to the immune system.
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Plasmodium & Human Symbiosis By: Rachel Schwab
Evasive Parasite Plasmodium hide in the human liver and in blood cells They hide from the immune system
A new Face • Plasmodium changes the “face” (surface proteins that they show to the immune system. • This allows it to be very good at resisting drugs.
Life of Plasmodium 1 • Female Anopheles mosquito bites infected person with malaria. (picks up plasmodium) • Gametes form zygote in mosquito's digestive tract. • Only diploid stage of life cycle
Life of Plasmodium 2 • Infected mosquito bites a person giving them plasmodium sporozoits. • Sporozoites enter liver cells and divide to become merozoits, which can then enter red blood cells.
Life of Plasmodium 3 • Merozoites grow and divide asexually. • Break out of red blood cells causing fevers and chills. May enter new red blood cells. • Some merozoites form gametocytes which starts the cycle over again.
Life Cycle http://www.youtube.com/watch?v=OEDhe4MPEMc
Review Questions • What parasite causes Malaria? • Where does plasmodium spend most of their life? • What allows plasmodium to be “an evasive parasite”? • Symptoms of Malaria? • How is the cycle started over? • Where is the zygote formed in the cycle?