Question

Difference between Respiration and Combustion

Answer 1

respiration is the process where oxygen is taken in and carbon dioxide is exhaled out and combustion means the burning of substances in the presence of oxygen.

Answer 2

Difference between Respiration and Combustion are given below:

Respiration:

• It is the process of oxidation of food materials like Amino acids, glucose, fatty acids to ‘carbon dioxide and water’.
• In respiration process energy is released in several stages.
• It does not require any ‘external heat’ on the process.

Combustion:

• It is the process to form a carbon dioxide and water by burning sugar which helps in the ‘release of energy’ in the form of heat.
• In combustion, energy is released only once.
• It is only done by applying external heat to the sugar molecule to burn.