Differentiate between autotrophic and heterotrophic mode of
nutrition.
Answers
Answer:
1. Autotrophs are members of the plant kingdom and some unicellular organisms like cyanobacteria. On the other hand, heterotrophs are all members of the animal kingdom.
2. The mode of nutrition in autotrophs is that they are producers and prepare their own food in the presence of sunlight with the process of photosynthesis. Whereas the mode of nutrition in heterotrophs is that they are consumers who are dependent on others for their food.
3. Autotrophs can be classified into photoautotrophs and chemoautotrophs. And Heterotrophs can be classified into photoheterotrophs and chemoheterotrophs.
4. In the food chain, autotrophs form the lowest trophic level whereas heterotrophs form the second or third trophic levels.
5. Autotrophs act as producers and heterotrophs as consumers.
6. In some autotrophs, solar energy can be stored whereas, in heterotrophs, solar energy storage or utilization is not possible.
7. In autotrophs, chloroplast helps in preparing food whereas heterotrophs do not have chloroplast so cannot prepare their own food.
8. Autotrophs obtain energy from inorganic sources by converting light energy into chemical energy whereas heterotrophs directly or indirectly obtain energy from other organisms.
9. Autotrophs cannot move from their place whereas heterotrophs can move from one place to another in search of food and shelter.
10. Examples of Autotrophs are green plants, algae, and few photosynthetic bacteria. Examples of heterotrophs are cows, buffaloes, tigers, humans, etc.
Therefore, the main difference between autotrophs and heterotrophs is that the former are able to make their own food with the help of photosynthesis whereas the latter cannot.
Explanation:
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Answer:
Autotrophic Nutrition: The mode of nutrition in which an organism makes it own by by some simple substances is call autotrophic nutrition. Eg: plants
Heterotrophic Nutrition: The mode of Nutrition in which an organism depends on other organisms for food, shelter and for the survival is called heterotrophic Nutrition. Eg: animals, humans, etc....
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