Question

Infectious stages of Plasmodium falciparum in female Anopheles mosquitoes is A and in human it is B

• A. B-Gametoeytes; A- Sporozoites
• B. B-Cryptozoites; A- Cryptomerozoites
• C. B-Sporozoites; A- Gametocytes
• D. B-Erythrocytes; A- Gametocytes

Answer 1

Answer: (C)

B-Sporozoites; A- Gametocytes

The parasite shows several stages in its life cycle such as the sporozoites, merozoites, trophozoites, and gametocytes and all these stages have their own unique shapes and structures.

When the female Anopheles sucks blood malaria individual, the gametocytes of the parasite find their way into the gut of the mosquito. So this is the infected stage of the Plasmodium falciparum in female Anopheles mosquitoes.

The male and female gametes in the mosquito gut fuse to form zygotes, wherein the midgut wall develops into oocysts. The growth and division of each oocyst produce active haploid forms called sporozoites. once the oocyst bursts and releases sporozoites into the body cavity of the mosquito and then travel to salivary glands. When the mosquito sucks the blood of the human the sporozoites get injected from its salivary glands into the human bloodstream, causing malaria.

So the infectious stage of Plasmodium falciparum in humans is sporozoites.

So the correct answer is option C.