In this blog we are going to discuss about a biological topic What is photosynthesis? and how can we define photosynthesis.To know more see the given link reactants of photosynthesis.
A plant’s leaves are the food factories powered by light energy. Photosynthesis is the process in green plants by which the food is prepared using carbon dioxide from the air, water from the soil and sunlight as an energy source.
Green plants require water, carbon dioxide and sunlight to make food, which is done mostly by the leaves.
Do you know which part of the plant helps it absorb water from soil?
It is the roots. Roots absorb water from the soil and send it to the stem. The stem carries water to other parts of the plant, including leaves.
Carbon dioxide required to make food is taken in from the atmosphere, along with other gases, through small pores in the leaves called stomata.
Chlorophyll, the green pigment in the leaves, absorbs the sunlight that falls on the leaves and combines it with water and carbon dioxide to make glucose, a form of sugar. This is then stored in the form of starch.
During this process, plants release oxygen as a byproduct. Almost all other living things use this oxygen for breathing.
This food making process in plants is called photosynthesis, as sunlight is used as the source of energy.
‘Photo’ means ‘light’ and ‘synthesis’ means ‘to put together’.
Green plants use only some of the prepared food for growth and to repair damaged body parts. The rest of the food is stored in different parts, like fruit, stem, leaf and root. This stored food is eaten by humans and plant-eating animals.
Next blog we will learn more about this concept.
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