Question

difference between respiration and photosynthesis

Answer 1

RESPIRATIONPHOTOSYNTHESISRespiration is the process by which chemical energy stored in the food is released in the form of ATP along with carbon dioxide and water. Respiration involves exchange of gases i.e. oxygen with carbon dioxide. 
Respiration takes place only during night in plants. In plants, carbon dioxide and oxygen are exchanged through the stomata by diffusion. Respiration in plants is just opposite to that of photosynthesis. 
C6H12O6  +  O2 --------> CO2 + H2O + EnergYPhotosynthesis is the process by which green plants and some other organisms use sunlight to synthesize food from carbon dioxide and water. Green plants absorb carbon dioxide from air and water from the soil. In the presence of sunlight and chlorophyll they synthesize starch as food. They release oxygen as a by-product.
CO2 + H2O         -------->C6H12O6   + O2
Carbon dioxide + Water     -------------->   Glucose + Oxygen
Respiration can take place both in plants and animalsPhotosynthesis cannot take place in animals. 
Respiration can be aerobic respiration and anaerobic respiration.Photosynthesis involves light phase and dark phase.

Answer 2

Respiration is the process in which we inhale oxygen and exhale carbon dioxide whereas combustion is the process of burning