Lipids release more energy per gram than carbohydrates because they contain

  1. more oxygen atoms
  2. more hydrogen atoms per molecule
  3. more nitrogen
  4. fewer carbon atoms
Answer

B) more hydrogen atoms per molecule

More H means more reduced NAD and ATP. AS & A Level Biology · Topic 12 Energy and Respiration · 12.1 Energy

Biology MCQ · More A Level Biology: Energy and respiration MCQs · Practise