Malaria fever is characterised by release of

Options

A. cryptomerozoites
B. merozoites
C. schizont
D. trophozoite

Answer

To answer the question "Malaria fever is characterised by release of," we need to understand the life cycle of the malaria parasite, specifically the Plasmodium species that causes malaria. Here’s a step-by-step solution:

### Step-by-Step Solution:

1. **Understanding the Malaria Parasite**: Malaria is caused by the Plasmodium parasite, which is transmitted to humans through the bite of infected female Anopheles mosquitoes.

**Hint**: Remember that malaria is caused by a specific type of parasite and is transmitted by mosquitoes.

2. **Infection Process**: When an infected mosquito bites a human, it injects sporozoites into the bloodstream. These sporozoites travel to the liver.

**Hint**: Focus on the initial stage of infection and the role of the mosquito in transmitting the parasite.

3. **Asexual Reproduction in the Liver**: In the liver, the sporozoites undergo asexual reproduction, leading to the formation of a large number of merozoites. This process involves the sporozoites multiplying and eventually rupturing liver cells.

**Hint**: Think about where the parasite multiplies before it affects the blood cells.

4. **Release of Merozoites**: Once the liver cells rupture, they release merozoites into the bloodstream. These merozoites are responsible for invading red blood cells (RBCs).

**Hint**: Identify the specific form of the parasite that is released into the bloodstream and causes symptoms.

5. **Invasion of Red Blood Cells**: The merozoites invade red blood cells, where they continue to reproduce asexually. This leads to the destruction of RBCs, which is a key factor in the symptoms of malaria, including fever and chills.

**Hint**: Consider the symptoms of malaria and how they are linked to the destruction of red blood cells.

6. **Conclusion**: The characteristic release associated with malaria fever is the release of merozoites from the liver into the bloodstream, which subsequently leads to the symptoms of the disease.

**Hint**: Summarize the key points about the life cycle of the malaria parasite and its impact on the human body.

### Final Answer:
Malaria fever is characterized by the release of **merozoites** (Option 2).