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Algae: Chlorophyceae (Green Algae) Video Lecture | Biology Class 11 - NEET

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00:00 Chlorophyceae
00:16 Characteristics
01:11 Question 1
01:12 Examples

FAQs on Algae: Chlorophyceae (Green Algae) Video Lecture - Biology Class 11 - NEET

1. What is Chlorophyceae?
Ans. Chlorophyceae is a class of green algae that belongs to the phylum Chlorophyta. It includes a wide range of freshwater, marine, and terrestrial algae species. These algae are photosynthetic organisms that contain chlorophyll pigments, giving them a green color.
2. What are the characteristics of Chlorophyceae?
Ans. Chlorophyceae algae exhibit various characteristics. They possess chloroplasts, which contain chlorophyll a and b pigments. They also have a cell wall made of cellulose and store excess carbohydrates as starch. These algae reproduce through both sexual and asexual methods, and they can be unicellular, colonial, filamentous, or multicellular.
3. What is the ecological significance of Chlorophyceae?
Ans. Chlorophyceae algae play a vital role in the ecosystem. They are primary producers, converting sunlight and carbon dioxide into organic matter through photosynthesis. They provide food and oxygen for other organisms in aquatic environments. Additionally, some species of Chlorophyceae are used as indicators of water quality, helping to assess the health of aquatic ecosystems.
4. Can Chlorophyceae be harmful to the environment?
Ans. While most Chlorophyceae algae are harmless, some species can cause environmental issues. Certain blooms of Chlorophyceae, like the species belonging to the genus Chlamydomonas, can lead to eutrophication in water bodies. Excessive growth of these algae can deplete oxygen levels, harming fish and other aquatic organisms. However, such harmful effects are infrequent and localized.
5. What are the economic uses of Chlorophyceae algae?
Ans. Chlorophyceae algae have various economic uses. Some species are cultivated for commercial purposes, particularly in the production of food supplements like spirulina. They are also used in the cosmetics industry for the production of skincare products. Furthermore, Chlorophyceae algae have the potential for biofuel production due to their high lipid content, making them a promising renewable energy source.
182 videos|367 docs|152 tests
Video Timeline
Video Timeline
arrow
00:00 Chlorophyceae
00:16 Characteristics
01:11 Question 1
01:12 Examples
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