Photosynthesis can be defined as building up process that is ‘powered’ by the energy of light. During photosynthesis, carbon dioxide is absorbed, and the oxygen is liberated. These gases enter and exit the plant through tiny pores in the leaves called stomata. In the leaves of the plant carbon dioxide and water are chemically combined in the presence of light and chlorophyll. Through this process glucose is produced.
What is Respiration?
Respiration is the reverse process of Photosynthesis. In this process food substances are broken down in the presence of oxygen to liberate energy. Carbon dioxide is produced as a by-product of this process. Respiration is a continuous process that takes place in the plant cells irrespective of light.