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Questions and Answers
What is Paramecium's status as a model organism?
What is Paramecium's status as a model organism?
- It is primarily used for studying marine environments
- It is widely used in classrooms and laboratories for studying biological processes (correct)
- It is only used as a vernacular name for ciliates
- It is mainly studied for its historical background
Who was among the first to observe Paramecium?
Who was among the first to observe Paramecium?
- Louis Joblot
- Anonymous author in Philosophical Transactions of the Royal Society
- Antonie van Leeuwenhoek (correct)
- Christiaan Huygens
Where are Paramecium commonly found?
Where are Paramecium commonly found?
- Exclusively in marine environments
- Only in stagnant basins and ponds
- Primarily in classrooms and laboratories
- Freshwater, brackish, and marine environments (correct)
What did Louis Joblot discover in an infusion of oak bark in water?
What did Louis Joblot discover in an infusion of oak bark in water?
Why has Paramecium been characterized as the 'white rat' of the phylum Ciliophora?
Why has Paramecium been characterized as the 'white rat' of the phylum Ciliophora?
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Study Notes
Paramecium as a Model Organism
- Paramecium is often referred to as the 'white rat' of the phylum Ciliophora, indicating its frequent use in laboratory research.
- Its simplicity, ease of cultivation, and well-understood biology make it an ideal model organism for studying cellular processes, genetics, and behavior.
Historical Observations
- Antonie van Leeuwenhoek is credited with being among the first individuals to observe Paramecium, utilizing a microscope he developed in the 17th century.
Habitat and Distribution
- Paramecium are commonly found in freshwater environments, particularly in ponds, lakes, and ditches, where organic matter is abundant.
Discovery by Louis Joblot
- Louis Joblot discovered microorganisms, including Paramecium, in an infusion of oak bark in water, contributing to the understanding of microbial life in the 18th century.
Significance of Paramecium in Research
- The classification of Paramecium as a model organism stems from its well-characterized genetics, ease of experimental manipulation, and relevance to studies in cellular and molecular biology.
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