Malarial Parasite Asexual Reproduction Explained
The question asks to identify the specific type of asexual reproduction characteristic of the Malarial parasite, also known as Plasmodium.
Understanding Asexual Reproduction Types
Asexual reproduction is a process where a single organism creates genetically identical offspring without the involvement of sex cells (gametes). Common forms include:
- Binary Fission: A single cell divides into two identical daughter cells. This is common in bacteria and some protozoa.
- Multiple Fission: A parent cell divides into many daughter cells simultaneously. This is often seen in protozoa and involves repeated nuclear divisions followed by cytoplasmic division.
- Budding: A new organism develops from an outgrowth or bud due to cell division at one particular site. The new organism remains attached to the parent until it grows.
- Regeneration: The process of regrowing damaged or severed body parts into a whole new organism.
Reproduction in the Malarial Parasite
The Malarial parasite, Plasmodium, undergoes asexual reproduction within its human host. This process is called schizogony and occurs in two main stages:
- Liver Stage: After infecting the human liver, the parasite undergoes schizogony, multiplying within the liver cells.
- Red Blood Cell Stage: The parasite then infects red blood cells, where it again undergoes schizogony, producing numerous merozoites.
Schizogony involves the nucleus of the parasite dividing multiple times, followed by the division of the cytoplasm, creating many daughter parasites (merozoites) from one parent cell (schizont). This process fits the definition of multiple fission.
Comparing Asexual Reproduction Methods
Let's compare the options provided:
| Reproduction Type | Process | Relevance to Malarial Parasite |
|---|---|---|
| Binary Fission | One parent cell divides into two equal daughter cells. | Not the primary method of multiplication in the human host. |
| Multiple Fission | One parent cell divides into many daughter cells simultaneously after repeated nuclear divisions. | This is the method used by Plasmodium during schizogony in liver cells and red blood cells. |
| Budding | A new organism develops from an outgrowth or bud. | Not observed in the asexual cycle of Plasmodium in humans. |
| Regeneration | Regrowth of body parts or a whole organism from fragments. | Not applicable to Plasmodium. |
Conclusion on Malarial Parasite Reproduction
The Malarial parasite (Plasmodium) utilizes multiple fission (schizogony) as its primary mode of asexual reproduction within the human host. This allows for rapid multiplication of the parasite, leading to the clinical symptoms of malaria.
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Important Questions from Biology
The book ‘The Origin of Species’ was written by ________.
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A. Biopsy
B. Bioscopy
C. Choledology
D. Radiography
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