Chapter 5

NCERT
Class 10
Science
Solutions
7. What are the conditions necessary for autotrophic nutrition and what are its by products ?

Question:

What are the conditions necessary for autotrophic nutrition and what are its by products ?

Answer:

The following are the conditions necessary for autotrophic nutrition:

  • Absorption of light energy by chlorophyll: Conversion of light energy into chemical form and hydrolysis of water molecules into H2 and O2.
  • Reduction of carbon dioxide into carbohydrates.

The main products of nutrition are as follows :

  • Sugar
  • Water
  • Oxygen and its by-products

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