Upgrade to remove ads
Life cycle of Plasmodium vivax, the apicomplex that causes malaria. Figure 12.20
Terms in this set (12)
Life cycle of Plasmodium
Plasmodium grows by sexual reproduction in the Anopheles mosquito. When an Anopheles carrying the infective stage of Plasmodium, called a sporozoite, bites a human, sporozoites can be injected into the human. The sporozoites undergo schizogony in liver cells and produce thousands of progeny called merozoites, which infect red blood cells. The young trophozoite looks like a ring in which the nucleus and cytoplasm are visible. This is called a ring stage. The red blood cells eventually rupture and release more merozoites. Upon release of the merozoites, their waste products, which cause fever and chills, are also released. Most of the merozoites infect new red blood cells and perpetuate their cycle of asexual reproduction. However, some develop into male and female sexual forms (gametocytes). Even though the gametocytes themselves cause no further
damage, they can be picked up by the bite of another Anopheles mosquito; they then enter the mosquito's intestine and begin their sexual cycle. Their progeny can then be injected into a new human host by the biting mosquito.
Infected mosquito bites human; sporozoites migrate through the bloodstream to liver of human.
Sporozoites undergo schizogony in liver cell; merozoites are produced.
Merozoites released into the bloodstream from liver may infect new red blood cells.
Merozoite develops into ring stage in red blood cell.
Ring stage grows and divides, producing merozoites.
Merozoites are released when red blood cell ruptures; some merozoites infect new red blood cells and some develop into male and female gametocytes.
Another mosquito bites infected human and ingests gametocytes.
In mosquito's digestive tract, gametocytes unite to form zygotes.
Resulting sporozoites migrate to salivary glands of mosquito.
Stages 1 through 6 are asexual or sexual reproduction?
Stages 7 through 9 are asexual or sexual reproduction?
THIS SET IS OFTEN IN FOLDERS WITH...
Microbiology Final Exam Review
The Lytic Cycle Figure 13.11
The Lysogenic Cycle Figure 13.12
Mechanism of action of A-B exotoxin Figu…
YOU MIGHT ALSO LIKE...
Malaria life cycle
Veterinary Technology~Parasitology Ch. 14
GEO 261 Malaria
OTHER SETS BY THIS CREATOR
Pharmacology final - Alcohol study questions
Respiratory and HIV Antiviral lecture 2 part 2
Respiratory and HIV Antiviral lecture 2
PHA 242: Antifungal Drugs
OTHER QUIZLET SETS
EMT Curriculum Terminology
ch 4 review
Conflicts in Establishing Freedom (Unit 2)
MGMT 473 FINAL EXAM