Autotrophic mode of Nutrition

Class-10, NCERT (CBSE), Autotrophic mode of Nutrition

1. Class-10 Life Science Autotrophic Nutrition AKANKSHA INTEGRATED B.SC. B.ED LOVELY PROFESSIONAL UNIVERSITY, PHAGWARA

2. What did you Observe? Note: For viewing Animation play your slide in slide show mode .

3. Autotrophic Nutrition The word autotroph is derived from two words, i.e. ' auto ' means self and ' trophe ' implies nutrition . Hence, autotrophic means 'self nutrition '. In autotrophic nutrition, the organism produces its food from inorganic raw materials like CO2 and H2O present in the surroundings by using sunlight energy.

4. Autotrophic Nutrition

5. Autotrophic Nutrition Photoautotrophic Chemoautotrophic

6. Photoautotrophic Nutrition A phototrophic mode of nutrition refers to  the process of photosynthesis . This process occurs in photosynthetic structures such chloroplasts . The requirements of photosynthesis are water, carbon dioxide, sunlight and chlorophyll.

7. Photosynthesis Note: For viewing Animation play your slide in slide show mode .

8. Examples of Photoautotroph Examples of photoautotrophs are land plants (e.g. dicots, grass,  ferns , etc .) Lichen photosynthetic bacteria (e.g.  cyanobacteria ), and other plant-like plankton groups.

9. Chemoautotrophic Nutrition Chemoautotrophs are those that make organic compounds as food by chemosynthesis. They use chemical energy to produce carbohydrates instead of light energy as photoautotrophs do. They utilize inorganic compounds such as hydrogen sulfide, sulfur, ammonium, and ferrous iron as reducing agents.

10. Chemoautotrophic Nutrition

11. Examples of Chemoautotrophs Chemoautotrophs include methanogens, halophile, nitrifiers, thermoacidophiles , and sulfur oxidizers . These autotrophic bacteria are extremophiles. They are found thriving in hostile habitats and where light cannot easily penetrate through.

12. Questions Que-1. Which of the following is an example of autotroph? Grass Mushroom Amoeba Paramecium Que-2. The autotrophic mode of nutrition requires: answer choices Carbon dioxide and water Chlorophyll Sunlight All of the above