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Aerobic Respiration

Energy releas...

Question

Energy released by oxidation of one molecule of glucose is -

A

800 K.cal

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B

695 K. cal

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C

686 K.cal

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D

700 K.cal

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Solution

The correct option is C 686 K.cal
When 1 mol (180 g) of glucose reacts with oxygen under standard conditions, 686 kcal of energy is released. 36 ATP synthesised in aerobic respiration. Total free energy stored as high energy phosphate bonds in ATP is therefore 252kcal. The remaining energy is lost. So, the correct option is '686 K.cal'.

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