Question

Which of the following statements are not true?
a. One ATP molecule yields 32 kJ of energy
b. Pentose phosphate pathway was discovered by Dickens
c. When tripalmitin is used as a substrate, RQ is 0.7
d. Energy released by one molecule of glucose on complete oxidation corresponds to 1292 kJ.

Answer 1

Statement a

Statement : One ATP molecule yields 32 kJ of energy.
Elaboration : One ATP yields 7.3 kcal energy

Statement b

Statement : Pentose phosphate pathway was discovered by Dickens.
Elaboration : Pentose phosphate pathway or phosphogluconate pathway was discovered by Otto Warburg.

Statement d

Statement : Energy released by one molecule of glucose on complete oxidation corresponds to 1292 kJ.
Elaboration : Free energy of ATP hydrolysis is 7.3 kcal
1 glucose molecule yields 36 ATP
Therefore, energy released by one molecule of glucose $=7.3\times 36=262.8$ kcal
1 kcal is equal to 4.184 kJ
262.8 kcal into kJ is equal to $262.8\times 4.184$ = 1099.5 kJ


(A) a, b and d