Plants are unique organisms! They are capable of forming organic matter, glucose, from carbon dioxide and water in the light. This amazing process is called photosynthesis. The ability to photosynthesize is the most important property of green plants.
You already know that plants need water, mineral and organic substances for normal growth and development. The plant receives water and minerals from the soil.
And green plants themselves create organic substances from inorganic ones by photosynthesis.
A green plant, using the energy of the sun’s rays, itself creates organic substances (primarily sugar) from inorganic (carbon dioxide and water), while releasing oxygen. Since the main supplier of carbon dioxide for photosynthesis is air, this method of obtaining organic substances by a plant is called air nutrition.
Photosynthesis is always supported by root nutrition – the absorption of water and mineral salts from the soil. Photosynthesis does not occur without water.
In plants, two types of nutrition can be distinguished: mineral nutrition, which provides the plant with water and minerals, and photosynthesis, during which the necessary organic substances are formed.