The differences between autotrophic nutrition and heterotrophic nutrition
| Autotrophic Nutrition | Heterotrophic Nutrition |
| Organism prepares its own food and is not dependent on any other organism. Raw material of Food preparation CO2, water, and sunlight. Chlorophyll ( green pigment ) is required for food preparation. Green plants and certain bacteria have autotrophic modes of nutrition. | An organism that does not prepare its food and is dependent on other organisms for food. Food cannot be prepared from CO2, water, or sunlight. Chlorophyll ( green pigment ) is not required for food preparation. All animals and fungi, most bacteria, have heterotrophic modes of nutrition. |