Question

One mole of glucose on metabolism, liberate how many kilo calories of energy ?

• A. 180
• B. 80
• C. 160
• D. 380

Answer 1

Answer: (D)

380

On complete combustion of glucose (1 mole) to CO${}_2$ & H${}_2$O, approx. 686 kcal of energy is released. When 1 g of glucose respires aerobically by ETS, Glycolysis and Krebs cycle, around 38 ATP molecules are generated. The terminal group of a mole of ATP has around 10 kcal. Thus, 38 ATP molecules represent a yield of 380 kcal of energy.

So the correct option is '380'