Question

Distinguish between combustion and respiration

Answer 1

Answer:

Respiration is the mechanism by which all living organisms generate the energy they require to survive. Because this occurs within the cells, it is also known as cellular respiration. Typically, two gases are exchanged: oxygen and carbon dioxide. The cells use oxygen and expel carbon dioxide. Aerobic respiration is the name for this type of breathing. In some situations, breathing can occur without the use of oxygen. Anaerobic respiration is the term for this process. Fermentation is another name for it.

Combustion is a chemical reaction that produces heat and light in the form of flame and is frequently accompanied by the release of oxygen. The pace at which the reactants combine is high, partly due to the nature of the chemical reaction and partly due to the fact that more energy is generated than can escape into the surrounding medium, causing the temperature of the reactants to be elevated to speed up the reaction even more.

Answer 2

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.

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Respiration does not require any external heat to carry on the process. Combustion is only done by applying external heat to the sugar molecule to burn. In respiration, there is no charring of sugar occurs during oxidation of Sugar. In combustion, the sugar is melted, Chars and later burns to produce flame.