1. What is the main function of a merozoite in the life cycle of Plasmodium?
A.
To invade red blood cells
B.
To infect the mosquito gut
C.
To produce digestive enzymes in the liver
D.
To form a mosquito egg
Correct Answer:
To invade red blood cells
Explanation:
Merozoites are released from schizonts and invade red blood cells, where they continue the asexual stage of the Plasmodium life cycle.
2. Merozoites are released from which stage of Plasmodium?
A.
Schizont
B.
Zygote
C.
Ookinete
D.
Gametocyte
Correct Answer:
Schizont
Explanation:
A schizont divides to form many merozoites, which are then released to infect red blood cells.
3. Which cells are primarily invaded by merozoites?
A.
Red blood cells
B.
White blood cells
C.
Nerve cells
D.
Muscle cells
Correct Answer:
Red blood cells
Explanation:
Merozoites specifically invade red blood cells after being released from liver or blood schizonts.
4. The repeated release of merozoites from infected red blood cells is closely associated with which symptom of malaria?
A.
Periodic fever
B.
Loss of hair
C.
Bone fracture
D.
Improved vision
Correct Answer:
Periodic fever
Explanation:
When infected red blood cells rupture and release merozoites, malaria parasites and their products contribute to periodic fever.
5. Where do merozoites go immediately after being released from a blood schizont?
A.
Into new red blood cells
B.
Into the mosquito eggs
C.
Into the stomach of the human
D.
Into the skin surface
Correct Answer:
Into new red blood cells
Explanation:
Released merozoites quickly invade fresh red blood cells and begin another asexual cycle.
6. Which statement correctly describes a merozoite?
A.
It is an invasive stage of Plasmodium
B.
It is the fertilized egg of Plasmodium
C.
It is a mature mosquito larva
D.
It is a type of human red blood cell
Correct Answer:
It is an invasive stage of Plasmodium
Explanation:
The merozoite is a Plasmodium stage specialized for invading red blood cells.
7. Merozoites formed in the liver are released into the bloodstream and then invade which cells?
A.
Red blood cells
B.
Platelets
C.
Bone cells
D.
Skin cells
Correct Answer:
Red blood cells
Explanation:
After the liver stage, merozoites enter the bloodstream and invade red blood cells to continue development.
8. What happens to a merozoite after it successfully enters a red blood cell?
A.
It begins development inside the red blood cell
B.
It immediately becomes a mosquito
C.
It forms a human nerve cell
D.
It leaves the human body permanently
Correct Answer:
It begins development inside the red blood cell
Explanation:
After invasion, the merozoite develops within the red blood cell as part of the erythrocytic stage.
9. Which event allows merozoites to infect additional red blood cells?
A.
Rupture of an infected red blood cell
B.
Formation of a human egg
C.
Growth of a mosquito wing
D.
Digestion of food in the stomach
Correct Answer:
Rupture of an infected red blood cell
Explanation:
When an infected red blood cell ruptures, it releases newly formed merozoites that can invade other red blood cells.
10. Merozoites are mainly involved in which type of reproduction of Plasmodium in humans?
A.
Asexual reproduction
B.
Sexual reproduction in the mosquito
C.
Binary reproduction of bacteria
D.
Seed formation in plants
Correct Answer:
Asexual reproduction
Explanation:
Merozoites are produced during asexual multiplication of Plasmodium in the liver and red blood cells of humans.
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