Question

Which of the following statements is/are true?
(a) One ATP molecule yields 30-32 kJ of energy.
(b) Pentose phosphate pathway was discovered by Dickens.
(c) When tripalmitin is used as a substance, the R.Q is 0.9.
(d) Energy released by one molecule of glucose on complete oxidation corresponds to about 1292 kJ.

• A. a and b only
• B. c and d only
• C. a and d only
• D. a, c and d only
• E. c only

Answer 1

Answer: (A)

a and b only

• When ATP molecule breaks into ADP molecule it will give up to 30.5 kJ of energy.
• Pentose Phosphate Pathway was discovered by Warburg & Dickens. It is also called as HMP ( hexose monophosphate shunt ) Pathway.
• Tripalmitin is triglyceride which is derived from the fatty acid palmitic acid its respiratory quotient ( R.Q ) is less than 1 as it consumes less oxygen than the carbon release which is found to be 0.7.
• One glucose molecule releases 36-38 molecules of ATP which means in total one glucose molecule on complete oxidation releases up to 1164-1173 kJ /mol of energy.
  

So the correct option is 'a and b only'