Question
Biology Question on Kingdom Protista
The infective stage of malarial parasite, Plasmodium that enters human body is
A
merozoite
B
sporozoite
C
trophozoite
D
minuta form.
Answer
sporozoite
Explanation
Solution
The infective stage of Plasmodium is a minute organism called sporozoite. When the mosquito bites man, sporozoites present in the salivary gland of female Anopheles mosquito are injected into the blood of the man. These sporozoites are spindle-shaped or sickle- shaped uninucleate organisms capable of wrigging (worm-like) movements. Each sporozoite consists of elastic pellicle, cytoplasm and nucleus.