Question

what is mean by photosynthesis ?

Answer 1

$\huge\textbf{Photosynthesis...}$
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It is the natural process by which green plants and some other organisms prepare their food (Glucose).

It occurs in Chloroplast.

$\textbf{Equation :}$

6CO2 + 6H2O -----› C6H12O6 + 6O2
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$\textbf{Raw Materials}$ 

Carbon Dioxide (CO2) and Water (H2O) are the raw material of Photosynthesis. 

Sunlight is need for the Photosynthesis. 

Glucose (C6H12O6), Water (H2O) Oxygen (O2) are the products of Photosynthesis.
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$\textbf{Mechanism of Photosynthesis :}$

→ Light energy is converted into Chemical Energy and the Water moleculesplits into Hydrogen and Oxygen.

→ Light energy of sun is absorbed by Chlorophyll.

→ Carbon-dioxide is reduced to form Glucose. And Oxygen is released into the atmosphere.
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$\textbf{Importance of Photosynthesis :}$

Photosynthesis is important because it produces oxygen as a bi-product which is necessary for living.

Also food is made by the help of this process (Photosynthesis) which is also important for living.
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Answer 2

Explanation:

Photosynthesis is a process by which phototrophs convert light energy into chemical energy, which is later is used to fuel cellular activities. The chemical energy is stored in the form of sugars, which are created from water and carbon dioxide.

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