A) \[{{O}_{2}}\] (oxygen)
B) \[C{{O}_{2}}\] (carbon dioxide)
C) \[N{{O}_{2}}\] (nitrogen dioxide)
D) \[S{{O}_{2}}\] (sulphur dioxide)
Correct Answer: B
Solution :
Respiration is the process by which chemical energy in organic molecules is released by oxidation. This energy is then made available to living cells in the form of ATP. The biochemical process within the cell is known as cell respiration. IF it requires oxygen, it is described as aerobic respiration, while in the absence of oxygen it is described as anaerobic respiration. Aerobic respiration: \[{{\text{C}}_{\text{6}}}{{\text{H}}_{\text{12}}}{{\text{O}}_{\text{6}}}\,\text{+}\,\text{6}{{\text{O}}_{\text{2}}}\xrightarrow[{}]{{}}\,\text{6C}{{\text{O}}_{\text{2}}}\,\text{+}\,\text{6}{{\text{H}}_{\text{2}}}\text{O}\,\,\text{+Energy}\] Anaerobic respiration: \[{{\text{C}}_{\text{6}}}{{\text{H}}_{\text{12}}}{{\text{O}}_{\text{6}}}\,\xrightarrow[{}]{{}}\,2{{\text{C}}_{\text{2}}}{{\text{H}}_{5}}\text{OH}\,\,\text{+}\,\text{2C}{{\text{O}}_{2}}\,\text{+}\,\text{Energy}\]
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