Heamozoin is released into blood during infection of Plasmaodium vivax every

Options

A. 24 hours
B. 48 hours
C. 72 hours
D. 12 hours.

Answer

To answer the question regarding the release of hemozoin into the blood during an infection of Plasmodium vivax, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Plasmodium vivax**:
- Plasmodium vivax is a protozoan parasite that causes malaria in humans. It is transmitted through the bite of infected female Anopheles mosquitoes.

2. **Infection Process**:
- When an infected mosquito bites a human, it injects sporozoites (the infectious form of the parasite) into the bloodstream. These sporozoites travel to the liver.

3. **Asexual Reproduction in the Liver**:
- Inside the liver, the sporozoites undergo asexual reproduction, multiplying and eventually causing the liver cells to burst. This releases merozoites (the next stage of the parasite) back into the bloodstream.

4. **Invasion of Red Blood Cells**:
- The released merozoites then invade red blood cells and continue to reproduce asexually within them. This cycle of invasion and reproduction leads to the destruction of red blood cells.

5. **Release of Hemozoin**:
- The destruction of red blood cells is associated with the release of hemozoin, a toxic substance that is a byproduct of the digestion of hemoglobin by the parasite. This release contributes to the symptoms of malaria, including fever and chills.

6. **Cycle Duration**:
- The asexual reproduction cycle of Plasmodium vivax in red blood cells typically occurs every 48 to 72 hours. However, it is commonly noted that symptoms, including the release of hemozoin, manifest every 72 hours (approximately 3 days).

7. **Conclusion**:
- Therefore, the correct answer to the question is that hemozoin is released into the blood during an infection of Plasmodium vivax approximately every **72 hours**.

### Final Answer:
**72 hours (3 days)**

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