### Theory:

Photosynthesis is the process by which plants make their own food in the presence of sunlight, carbon dioxide present in air, water, minerals and chlorophyll present in leaves.

$\begin{array}{l}6{\mathit{CO}}_{2}+6{H}_{2}O+\mathit{Light}\phantom{\rule{0.147em}{0ex}}\mathit{energy}\stackrel{\mathit{Chlorophyll}}{⟶}{C}_{6}{H}_{12}{O}_{6}+6{O}_{2}\\ \\ \mathit{Carbondioxide}\phantom{\rule{0.147em}{0ex}}+\mathit{Water}+\mathit{Light}\phantom{\rule{0.147em}{0ex}}\mathit{energy}\stackrel{\mathit{Chlorophyll}}{⟶}\phantom{\rule{0.147em}{0ex}}\mathit{Glucose}+\mathit{Oxygen}\end{array}$
• Plants take up carbon-dioxide from the atmosphere through the tiny pores known as 'stomata' present on the surface of the leaves and surrounded by 'guard cells'.
• Plants absorb the water and minerals from the soil with the help of deep penetrated roots inside the soil and transport them to the leaves of the plants where synthesis of food takes place.
• The green pigment present in leaves known as chlorophyll helps the leaves of plant to capture the sunlight that act as the source of energy to carry out the process.
• After this the chlorophyll holding the cells of leaves in the presence of sunlight, carbon dioxide and water to produce carbohydrates in the leaves and is stored in the plants in the form of energy.
• The process of photosynthesis releases oxygen in the atmosphere during the synthesis of food.