Question

the chemical energy released after respiration if released at once might result in a brief blast of light and heat??what does this mean??

Answer 1

It simply means that when nutrients react with oxygen in the cells of living things, energy is released in the form of heat. The chemical energy stored in the food is very large, so this energy is released slowly as per the needs of the body. If all the chemical energy will be released at a time, it will result in the release of large amount energy in the form of heat and light that may cause small blast or shock in the body.