Question

The causative agent of malaria is?
a. Female anopheles
b. Trypanosome
c. Leis mania
d. Plasmodium
e. Bacteria

Answer 1

Hint: Malaria is considered to be a life threatening disease. Plasmodium parasite is the cause because of which it is said to be dangerous. When it enters the body after that it moves towards the liver, where plasmodium parasites start to grow and evenly infect RBCs (red blood cells).

Complete answer:
Female anopheles: - They are a special type of Anopheles genus mosquitoes. In this type of mosquito only females can transmit disease of malaria. These mosquitoes bite the infected people, as they get blood which is important for their eggs.

Trypanosome: - Trypanosome is a group of unicellular parasitic flagellate protozoa. Most of them are heterogeneous and they are transmitted through vectors. It causes various diseases like, sleeping sickness, changes disease.

Leis mania: - It is a disease by protozoan parasites. Parasites are transferred into the human body when infected female phlebotomine sandfly bites. In some cases, some people do not develop any of the symptoms throughout their life.

Plasmodium:- It is unicellular eukaryotes. Their life span lasts on blood feeding insect hosts. They grow in vertebrate blood tissue. It causes an adverse effect on the red blood cells of the host which lead to malaria.

Bacteria: - They are biological cells. They are generally first life forms which appeared on Earth. There are only 27 percent of recognised bacteria’s others are still not characterised. They can increase in the laboratory.

Hence, The correct answer is option (D).

Note: As plasmodium is the causative agent of malaria. It is injected into the human body by infected female anopheles. Which leads to reduction of red blood cells.