Life Cycle of Plasmodium

Q.

The sporozoites that cause infection when a female Anopheles mosquito bites a human being are formed in:

1. salivary glands of the mosquito

2. Liver of human

3. intestine of human

4. RBCs of mosquito

Q.

Haemozoin is

1. a precursor of hemoglobin

2. a toxin from Streptococcus

3. a toxin from Plasmodium species

4. a toxin from Haemophilus species

Q. Choose the correct statements for Malaria.

1. Malaria is a protozoan infection
2. It is caused by P. falciparum, P. vivax and P. malariae, P ovale
3. It is caused by the female Anopheles mosquito
4. It is spread by the female Anopheles mosquito

Q. The time needed for the gametocytes to mature into gametes differs for each Plasmodium species. Which one of these takes the least time?

1. P. vivax
2. P. malariae
3. P. falciparum
4. Both a and b

Q. Which of the following statements about malaria is/are true?

1. There are two stages in the life cycle of the malarial parasite
2. Asexual stage occurs in mosquitoes
3. Asexual stage occurs in humans and sexual stage starts in humans and ends in mosquitoes
4. Asexual stage occurs in mosquitoes and sexual stage occurs in humans

Q. Arrange the following in order of their appearance in the Plasmodium life cycle and choose the correct option.

1. Schizonts, Trophozoites, Merozoites, Gametocytes, Sporozoites
2. Merozoites, Schizonts, Trophozoites, Gametocytes, Sporozoites
3. Merozoites, Gametocytes, Sporozoites, Schizonts, Trophozoites
4. Sporozoites, Merozoites, Trophozoites, Schizonts, Gametocytes

Q. Choose the correct set of labels for the spots 1, 2, 3, 4 and 5 in the diagram from the options given below:

1. 1- Female Anopheles , 2- Sporozoites , 3- Merozoites , 4 - trophozoite, 5- Gametocytes
2. 1- Male mosquito, 2- Sporozoites , 3- Merozoites , 4 - trophozoite, 5- Gametocytes
3. 1- Female Anopheles , 2- Sporozoites , 3- Merozoites , 4 - trophozoite, 5- Schizonts
4. 1- Female Anopheles , 2- Sporozoites , 3- Merozoites , 4 - trophozoite, 5- Schizonts

Q. Which one of the following genus of insects prefer to breed in clean water and their larvae lie parallel to the surface of water?

1. Culex
2. Anopheles
3. Aedes
4. Phlebotomus

Q. Motile zygote of Plasmodium occurs in

1. Gut of female Anopheles
2. Salivary glands of Anopheles
3. Human liver
4. Human RBCs

Q.

Clinical fever in malaria is due to

1. Erythrocytic gametogony

2. Erythrocytic schizogony

3. Exo-erythrocytic schizogony

4. Pre-erythrocytic schizogony