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What is Autotrophic nutrition ? Example of Autotrophs - CBSE NCERT Notes Class 07



What is Autotrophic Nutrition?

 

The word “Autotrophic” is the combination of two terms – Auto (self) and Tropic (nutrition), and the exact definition is self-nutrition. In the presence of sunlight, an organism creates its own food from basic inorganic materials such as water, carbon dioxide, and mineral salts. The nutritional pattern of all green plants is autotrophic.



Autotrophic species have a green pigment called "chlorophyll" that aids in the absorption of solar energy. With the aid of carbon dioxide, water, and solar energy, they produce their own food through photosynthesis. Glucose is generated in this manner.
 
Some examples of autotrophic nutrition are plants like cyanobacteria and blue-green algae.


 
What is the nutritional value of plants?
 
To ensure that life processes run smoothly, every living organism needs some sort of energy and nutrient substances. Furthermore, the requisite energy is obtained from the food.





What are the nutrition requirements for plants?

Plants have cells and tissues and are also a part of living things that need some form of energy. They are the creators of the ecosystem; they also grow in girth and size. They do not have the essential nutrients to create their own food. Thus, the kind of nutrient requirement differs.

In plants, this type of nutrition is known as the “autotrophic mode of nutrition”. This actually means that the plants have the special ability to make their own food by using simple inorganic substances to harvest organic substances. They get energy sources from non-living things such as the sun and carbon dioxide (CO2).


To Learn More About Autotrophic Nutrition Click Here.

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