15 Questions
Which organelles of locomotion are absent in sporozoan parasites?
Flagella
In which host do the sexual forms of sporozoan parasites usually reside?
Definitive host
Which genus is the causative agent of malaria disease in humans?
Plasmodium falciparum
Which stage survives inside the anopheline mosquito vector after ingestion of the blood?
Male and female gametocytes
Which species of Plasmodium causes malignant tertian malaria?
Plasmodium falciparum
What is a characteristic feature of the sporozoan parasites in the phylum Apicomplexa?
Production of spores at some point in their life cycle
Where do the asexual forms of sporozoan parasites usually reside in their life cycle?
Intermediate host
Which species of Plasmodium causes benign tertian malaria?
P. vivax
What is the global distribution of malaria primarily attributed to?
Dominant malaria vectors
What is the only stage from the ingested blood that survives inside the anopheline mosquito vector?
Gametocytes
Which characteristic describes the reproductive system of nematodes?
Dioecious
What is the primary habitat of nematodes?
Polar ice
Which nematode species is known for infecting a large population in the US, particularly in the southeast?
Round worm (Ascaris lumbricoides)
What is the mode of transmission for Enterobius vermicularis (Pin worm) infections?
Airborne route
What is the average number of eggs laid per day by female Ascaris lumbricoides (Round worm)?
200,000-300,000 eggs
Explore the characteristics and life cycles of sporozoan parasites, focusing on the absence of locomotion organelles and the production of spores. Learn about the alternation of generations and the host involvement in the life cycle, with examples including the malaria parasite and Toxoplasma.
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