differentiate between the following:
a) Nitrogen & Oxygen
b) Respiration & Combustion
Answers
Explanation:
Respiration Combustion
1. It takes place in living cells only. 1. It does not take place in the living cell.
2. It is carried out with the help of various enzymes. 2. Enzymes are not involved in this process.
3. The oxidation of food and the liberation of energy occur in a step-wise manner. 3. The substances are oxidized spontaneously with sudden release of energy.
4. It occurs at the body temperature of the organism. 4. Sudden release of energy generates high temperature of a fire.
5. 60% of energy escapes as body heat and 40% of energy is packaged directly into new chemical energy (ATP). 5. Energy released in combustion is dissipated as heat and to some extent as light.
NITROGEN AND OXYGEN
Nitrogen and oxygen are examples of two different elements. Nitrogen has an atomic number of seven, while the atomic number of oxygen is eight. That means nitrogen has seven protons in the nucleus of each atom, as well as seven electrons surrounding the nucleus. Oxygen has eight protons and electrons.
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