Question

Fever in Malaria is due to
A. Entry of crypto merozoites into red blood corpuscles.
B. Entry of sporozoites into blood capillaries.
C. Entry of merozoites from red blood corpuscle.
D. Release of merozoites from red blood corpuscles.

Answer 1

Hint: Malaria is a disease caused by a parasite called plasmodium and it is transmitted through the bite of infected anopheles mosquitoes. Some common symptoms of malaria include fever, headache.

Complete Answer:
When a mosquito bites a person the sporozoites from the salivary gland of the Mosquito enters into the blood of that person. Then this sporozoite enters the liver of that person and starts multiplying into merozoites.

Now these merozoites attack the red blood cells (RBC) of that person and this merozoite keeps on multiplying, then the RBC ruptures which results in the release of merozoites, this stage is known as the erythrocytic cycle of the plasmodium life cycle and this release of merozoites from red blood corpuscle (RBC) results into Fever.

- Option(A): Release of merozoites from red blood corpuscle causes malaria, Therefore this is an Incorrect option.
- Option(B): Entry of sporozoites in blood capillaries is the initial stage of the plasmodium life cycle and it is a part of the pre-erythrocytic stage and this stage doesn't cause Fever, Therefore this is an Incorrect option.
- Option(C): Entry of merozoites from red blood corpuscles do not cause fever, Therefore this is an Incorrect option.
- Option(D): Release of merozoites from red blood corpuscle causes fever in malaria, Therefore this is the Correct option.

Hence the correct answer is option D.

Note: - Malaria is caused by plasmodium which is a small protozoan.
- There are different species of plasmodium out of which plasmodium falciparum is the most dangerous one.
- Parasite malaria requires two hosts that are human and female anopheles mosquitoes.
- Malaria can be easily prevented by maintaining hygiene and the use of mosquito nets, mosquito repellent creams, etc.