How much usable energy. is available during oxidative combustion of 1 gm molecule of glucose in the body?
A. 686000 cal
B. 304000 cal
C. 277400 cal
D. 686 cal
Answer: Option A
Solution(By Examveda Team)
686000 cal usable energy is available during oxidative combustion of 1 gm molecule of glucose in the body.Combustion involves a complete oxidation reaction where biomass reacts with excess oxygen at high temperatures (700 - 1400°C) to generate heat in the form of steam and other gaseous by-products such as carbon dioxide (CO2) and water (H2O).
Complete oxidation of one molecule of glucose results in the production of the equivalent of 38 molecules of ATP. 1 gram of glucose molecule yields 686 kcal, which is equivalent to 686000 calories of energy.
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