- Autotrophic and heterotrophic nutrition are two important modes of nutrition in living organisms.
- Both these forms of nutrition differ in the way they obtain energy and nutrients required for growth and survival.
- Autotrophic nutrition is a type of nutrition in which organisms prepare their own food using simple inorganic compounds.
- Example: Photosynthesis in green plants where carbon dioxide and water are converted into glucose and oxygen.
- Advantages: Independent of other organisms for food, less competition for resources.
- Heterotrophic nutrition is a type of nutrition in which organisms depend on other organisms for their food.
- Example: Animals that feed on plants or other animals.
- Advantages: Easier access to food, less energy spent on food production.
- Source of Food: Autotrophic organisms prepare their own food while heterotrophic organisms depend on other organisms.
- Mode of Nutrition: Autotrophic nutrition is primarily photosynthetic while heterotrophic nutrition is primarily ingestion.
- Energy Production: Autotrophic organisms produce their own energy through photosynthesis while heterotrophic organisms obtain energy from consuming other organisms.
- Complexity: Autotrophic organisms are relatively simpler in structure while heterotrophic organisms are complex in structure.
- Both autotrophic and heterotrophic nutrition play important roles in the food chain and ecosystem.
- The choice of a particular mode of nutrition depends on the environmental conditions and the survival strategy of the organism.