1. Which organism causes the most severe form of human malaria?
A.
Plasmodium falciparum
B.
Plasmodium vivax
C.
Plasmodium malariae
D.
Plasmodium ovale
Correct Answer:
Plasmodium falciparum
Explanation:
Plasmodium falciparum causes the most severe form of malaria and can lead to life-threatening complications.
2. Which mosquito transmits Plasmodium falciparum to humans?
A.
Female Anopheles mosquito
B.
Male Anopheles mosquito
C.
Female Culex mosquito
D.
Male Aedes mosquito
Correct Answer:
Female Anopheles mosquito
Explanation:
Plasmodium falciparum is transmitted to humans through the bite of an infected female Anopheles mosquito.
3. Which stage of Plasmodium falciparum enters the human body during the bite of an infected mosquito?
A.
Sporozoite
B.
Merozoite
C.
Gametocyte
D.
Zygote
Correct Answer:
Sporozoite
Explanation:
The infected female Anopheles mosquito injects sporozoites of Plasmodium falciparum into the human bloodstream.
4. In humans, sporozoites of Plasmodium falciparum first reach which organ?
A.
Liver
B.
Kidney
C.
Lung
D.
Stomach
Correct Answer:
Liver
Explanation:
After entering the bloodstream, Plasmodium falciparum sporozoites travel to the liver and multiply in liver cells.
5. Which human blood cells are infected by the merozoites of Plasmodium falciparum?
A.
Red blood cells
B.
White blood cells
C.
Platelets
D.
Bone cells
Correct Answer:
Red blood cells
Explanation:
Merozoites of Plasmodium falciparum invade red blood cells, where further development and multiplication occur.
6. Which symptom is commonly associated with Plasmodium falciparum malaria?
A.
Recurring fever with chills
B.
Permanent loss of hearing
C.
Broken bones
D.
Tooth decay
Correct Answer:
Recurring fever with chills
Explanation:
Plasmodium falciparum infection commonly causes fever, chills, sweating, weakness, and other malaria symptoms.
7. Which stage of Plasmodium falciparum is taken up by a mosquito from an infected human?
A.
Gametocyte
B.
Sporozoite
C.
Merozoite
D.
Ookinete
Correct Answer:
Gametocyte
Explanation:
The mosquito takes up male and female gametocytes of Plasmodium falciparum when it feeds on the blood of an infected person.
8. Which measure helps prevent the transmission of Plasmodium falciparum malaria?
A.
Using insecticide-treated mosquito nets
B.
Sharing used needles
C.
Drinking untreated water
D.
Avoiding all fruits
Correct Answer:
Using insecticide-treated mosquito nets
Explanation:
Insecticide-treated mosquito nets reduce contact with infected female Anopheles mosquitoes and help prevent Plasmodium falciparum transmission.
9. Why can Plasmodium falciparum malaria become dangerous quickly?
A.
It can infect red blood cells of different ages
B.
It only remains on the skin
C.
It cannot multiply in humans
D.
It infects only bone cells
Correct Answer:
It can infect red blood cells of different ages
Explanation:
Plasmodium falciparum can invade red blood cells of different ages, allowing a high level of infection and severe disease.
10. What is the main way to reduce the spread of Plasmodium falciparum in a community?
A.
Controlling Anopheles mosquitoes
B.
Increasing mosquito breeding sites
C.
Avoiding sunlight completely
D.
Eating more sugar
Correct Answer:
Controlling Anopheles mosquitoes
Explanation:
Controlling the female Anopheles mosquito, the vector of Plasmodium falciparum, helps reduce malaria transmission.
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