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Kingdom Protista: Euglenoids Video Lecture - NEET
FAQs on Kingdom Protista: Euglenoids Video Lecture - NEET
| 1. What are euglenoids in Kingdom Protista? |  |
Ans. Euglenoids are a group of single-celled organisms belonging to the Kingdom Protista. They are characterized by their unique feature of having a flagellum, which they use for movement. Euglenoids are photosynthetic organisms that can also feed heterotrophically, making them mixotrophic in nature.
| 2. How do euglenoids obtain nutrition? | |
Ans. Euglenoids are capable of obtaining nutrition through both autotrophic and heterotrophic modes. They have chloroplasts that enable them to carry out photosynthesis, producing their own food using sunlight, carbon dioxide, and water. Additionally, euglenoids can also feed on organic matter in their environment, absorbing nutrients through their cell membrane.
| 3. What are the key characteristics of euglenoids? | |
Ans. Euglenoids possess several distinguishing characteristics. They have a flexible cell membrane called a pellicle, which allows them to change shape and move using their flagellum. Their flagellum is also involved in sensory perception. Euglenoids contain chloroplasts and can carry out photosynthesis, although some species may rely more on heterotrophic nutrition. They are typically found in freshwater environments.
| 4. How do euglenoids reproduce? | |
Ans. Euglenoids reproduce through a process called binary fission, where the cell divides into two identical daughter cells. Prior to division, they undergo a process called mitosis, ensuring that each daughter cell receives an equal amount of genetic material. Some euglenoids also have the ability to reproduce sexually through a process called conjugation, where genetic material is exchanged between two individuals.
| 5. What is the ecological importance of euglenoids? | |
Ans. Euglenoids play an important role in freshwater ecosystems as primary producers. Through photosynthesis, they contribute to the production of oxygen and serve as a food source for other organisms. Additionally, their ability to feed heterotrophically ensures their participation in nutrient cycling. Euglenoids are also bioindicators, as changes in their abundance or diversity can indicate the health of an aquatic ecosystem.
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