Which one of the following statements is correct?

Photosynthesis is the biological process by which green plants and other autotrophs convert light energy into chemical energy. During this process, plants take in carbon dioxide from the atmosphere and water from the soil [2]. In the presence of sunlight and chlorophyll, these reactants are converted into carbohydrates, specifically glucose, which serves as the primary food source for the plant [4]. The chemical reaction is often summarized as 6CO2 + 6H2O + light energy → C6H12O6 + 6O2 [4]. While oxygen is a byproduct of this reaction, it is not used to synthesize carbohydrates; rather, carbon dioxide is reduced to form the organic molecules [4]. Soil provides water and minerals, but the carbon required for carbohydrate synthesis comes from atmospheric carbon dioxide, not the soil or urea [4].

Sources

1. [1] Science-Class VII . NCERT(Revised ed 2025) > Chapter 10: Life Processes in Plants > 10.2.3 Photosynthesis: in a nutshell > p. 146
2. [2] Science , class X (NCERT 2025 ed.) > Chapter 5: Life Processes > 5.2.1 Autotrophic Nutrition > p. 81
3. [4] Science-Class VII . NCERT(Revised ed 2025) > Chapter 10: Life Processes in Plants > In a Nutshell > p. 150
4. [3] Science , class X (NCERT 2025 ed.) > Chapter 5: Life Processes > QUESTIONS > p. 82