NEET Exam > NEET Videos > Biology Class 11 > Detailed Overview: Kingdom Protista
Detailed Overview: Kingdom Protista Video Lecture | Biology Class 11 - NEET
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FAQs on Detailed Overview: Kingdom Protista Video Lecture - Biology Class 11 - NEET
| 1. What are the main characteristics of Kingdom Protista? |  |
Ans. Kingdom Protista is primarily characterized by its diverse group of eukaryotic organisms that are mainly unicellular, though some are multicellular. They can be classified into three main categories: protozoa (animal-like), algae (plant-like), and fungi-like protists. Protists are typically found in aquatic environments and can be autotrophic or heterotrophic, depending on their mode of nutrition.
| 2. How do protists reproduce? | |
Ans. Protists can reproduce both sexually and asexually. Asexual reproduction occurs commonly through binary fission, where a single organism divides into two identical organisms. Some protists also utilize budding or spore formation. Sexual reproduction involves the fusion of gametes, leading to genetic variation, which can occur in certain environmental conditions.
| 3. What is the ecological significance of protists? | |
Ans. Protists play a crucial role in ecosystems as primary producers, especially algae, which perform photosynthesis and produce oxygen. They serve as the base of the food web in aquatic environments, providing food for various organisms, including fish and zooplankton. Additionally, some protists, like phytoplankton, are essential for carbon cycling and maintaining ecological balance.
| 4. Can protists cause diseases in humans? | |
Ans. Yes, some protists are pathogens that can cause diseases in humans. For example, Plasmodium species are responsible for malaria, while Giardia lamblia causes giardiasis. These diseases can have significant health impacts and are often transmitted through contaminated water or insect vectors.
| 5. How are protists classified within the domain Eukarya? | |
Ans. Protists are classified within the domain Eukarya based on their eukaryotic cell structure, which includes a true nucleus and membrane-bound organelles. They represent a diverse group that does not fit neatly into the other kingdoms (Animalia, Plantae, and Fungi) and are often grouped in separate clades based on genetic and morphological characteristics.
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Dec 27, 2024 Last updated |
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